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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2005 by Wilson Snyder.
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
localparam // synopsys enum En_State
EP_State_IDLE = {3'b000,5'd00},
EP_State_CMDSHIFT0 = {3'b001,5'd00},
EP_State_CMDSHIFT13 = {3'b001,5'd13},
EP_State_CMDSHIFT14 = {3'b001,5'd14},
EP_State_CMDSHIFT15 = {3'b001,5'd15},
EP_State_CMDSHIFT16 = {3'b001,5'd16},
EP_State_DWAIT = {3'b010,5'd00},
EP_State_DSHIFT0 = {3'b100,5'd00},
EP_State_DSHIFT1 = {3'b100,5'd01},
EP_State_DSHIFT15 = {3'b100,5'd15};
reg [7:0] /* synopsys enum En_State */
m_state_xr; // Last command, for debugging
/*AUTOASCIIENUM("m_state_xr", "m_stateAscii_xr", "EP_State_")*/
// Beginning of automatic ASCII enum decoding
reg [79:0] m_stateAscii_xr; // Decode of m_state_xr
always @(m_state_xr) begin
case ({m_state_xr})
EP_State_IDLE: m_stateAscii_xr = "idle ";
EP_State_CMDSHIFT0: m_stateAscii_xr = "cmdshift0 ";
EP_State_CMDSHIFT13: m_stateAscii_xr = "cmdshift13";
EP_State_CMDSHIFT14: m_stateAscii_xr = "cmdshift14";
EP_State_CMDSHIFT15: m_stateAscii_xr = "cmdshift15";
EP_State_CMDSHIFT16: m_stateAscii_xr = "cmdshift16";
EP_State_DWAIT: m_stateAscii_xr = "dwait ";
EP_State_DSHIFT0: m_stateAscii_xr = "dshift0 ";
EP_State_DSHIFT1: m_stateAscii_xr = "dshift1 ";
EP_State_DSHIFT15: m_stateAscii_xr = "dshift15 ";
default: m_stateAscii_xr = "%Error ";
endcase
end
// End of automatics
integer cyc; initial cyc=1;
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
//$write("%d %x %x %x\n", cyc, data, wrapcheck_a, wrapcheck_b);
if (cyc==1) begin
m_state_xr <= EP_State_IDLE;
end
if (cyc==2) begin
if (m_stateAscii_xr != "idle ") $stop;
m_state_xr <= EP_State_CMDSHIFT13;
end
if (cyc==3) begin
if (m_stateAscii_xr != "cmdshift13") $stop;
m_state_xr <= EP_State_CMDSHIFT16;
end
if (cyc==4) begin
if (m_stateAscii_xr != "cmdshift16") $stop;
m_state_xr <= EP_State_DWAIT;
end
if (cyc==9) begin
if (m_stateAscii_xr != "dwait ") $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
|
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2005 by Wilson Snyder.
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
localparam // synopsys enum En_State
EP_State_IDLE = {3'b000,5'd00},
EP_State_CMDSHIFT0 = {3'b001,5'd00},
EP_State_CMDSHIFT13 = {3'b001,5'd13},
EP_State_CMDSHIFT14 = {3'b001,5'd14},
EP_State_CMDSHIFT15 = {3'b001,5'd15},
EP_State_CMDSHIFT16 = {3'b001,5'd16},
EP_State_DWAIT = {3'b010,5'd00},
EP_State_DSHIFT0 = {3'b100,5'd00},
EP_State_DSHIFT1 = {3'b100,5'd01},
EP_State_DSHIFT15 = {3'b100,5'd15};
reg [7:0] /* synopsys enum En_State */
m_state_xr; // Last command, for debugging
/*AUTOASCIIENUM("m_state_xr", "m_stateAscii_xr", "EP_State_")*/
// Beginning of automatic ASCII enum decoding
reg [79:0] m_stateAscii_xr; // Decode of m_state_xr
always @(m_state_xr) begin
case ({m_state_xr})
EP_State_IDLE: m_stateAscii_xr = "idle ";
EP_State_CMDSHIFT0: m_stateAscii_xr = "cmdshift0 ";
EP_State_CMDSHIFT13: m_stateAscii_xr = "cmdshift13";
EP_State_CMDSHIFT14: m_stateAscii_xr = "cmdshift14";
EP_State_CMDSHIFT15: m_stateAscii_xr = "cmdshift15";
EP_State_CMDSHIFT16: m_stateAscii_xr = "cmdshift16";
EP_State_DWAIT: m_stateAscii_xr = "dwait ";
EP_State_DSHIFT0: m_stateAscii_xr = "dshift0 ";
EP_State_DSHIFT1: m_stateAscii_xr = "dshift1 ";
EP_State_DSHIFT15: m_stateAscii_xr = "dshift15 ";
default: m_stateAscii_xr = "%Error ";
endcase
end
// End of automatics
integer cyc; initial cyc=1;
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
//$write("%d %x %x %x\n", cyc, data, wrapcheck_a, wrapcheck_b);
if (cyc==1) begin
m_state_xr <= EP_State_IDLE;
end
if (cyc==2) begin
if (m_stateAscii_xr != "idle ") $stop;
m_state_xr <= EP_State_CMDSHIFT13;
end
if (cyc==3) begin
if (m_stateAscii_xr != "cmdshift13") $stop;
m_state_xr <= EP_State_CMDSHIFT16;
end
if (cyc==4) begin
if (m_stateAscii_xr != "cmdshift16") $stop;
m_state_xr <= EP_State_DWAIT;
end
if (cyc==9) begin
if (m_stateAscii_xr != "dwait ") $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
|
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2005 by Wilson Snyder.
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
reg [7:0] crc;
// Build up assignments
wire [7:0] bitrev;
assign bitrev[7] = crc[0];
assign bitrev[6] = crc[1];
assign bitrev[5] = crc[2];
assign bitrev[4] = crc[3];
assign bitrev[0] = crc[7];
assign bitrev[1] = crc[6];
assign bitrev[2] = crc[5];
assign bitrev[3] = crc[4];
// Build up always assignments
reg [7:0] bitrevb;
always @ (/*AS*/crc) begin
bitrevb[7] = crc[0];
bitrevb[6] = crc[1];
bitrevb[5] = crc[2];
bitrevb[4] = crc[3];
bitrevb[0] = crc[7];
bitrevb[1] = crc[6];
bitrevb[2] = crc[5];
bitrevb[3] = crc[4];
end
// Build up always assignments
reg [7:0] bitrevr;
always @ (posedge clk) begin
bitrevr[7] <= crc[0];
bitrevr[6] <= crc[1];
bitrevr[5] <= crc[2];
bitrevr[4] <= crc[3];
bitrevr[0] <= crc[7];
bitrevr[1] <= crc[6];
bitrevr[2] <= crc[5];
bitrevr[3] <= crc[4];
end
always @ (posedge clk) begin
if (cyc!=0) begin
cyc<=cyc+1;
//$write("cyc=%0d crc=%x r=%x\n", cyc, crc, bitrev);
crc <= {crc[6:0], ~^ {crc[7],crc[5],crc[4],crc[3]}};
if (cyc==1) begin
crc <= 8'hed;
end
if (cyc==2 && bitrev!=8'hb7) $stop;
if (cyc==3 && bitrev!=8'h5b) $stop;
if (cyc==4 && bitrev!=8'h2d) $stop;
if (cyc==5 && bitrev!=8'h16) $stop;
if (cyc==6 && bitrev!=8'h8b) $stop;
if (cyc==7 && bitrev!=8'hc5) $stop;
if (cyc==8 && bitrev!=8'he2) $stop;
if (cyc==9 && bitrev!=8'hf1) $stop;
if (bitrevb != bitrev) $stop;
if (cyc==3 && bitrevr!=8'hb7) $stop;
if (cyc==4 && bitrevr!=8'h5b) $stop;
if (cyc==5 && bitrevr!=8'h2d) $stop;
if (cyc==6 && bitrevr!=8'h16) $stop;
if (cyc==7 && bitrevr!=8'h8b) $stop;
if (cyc==8 && bitrevr!=8'hc5) $stop;
if (cyc==9) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
|
/*****************************************************************************
* File : processing_system7_bfm_v2_0_5_axi_master.v
*
* Date : 2012-11
*
* Description : Model that acts as PS AXI Master port interface.
* It uses AXI3 Master BFM
*****************************************************************************/
`timescale 1ns/1ps
module processing_system7_bfm_v2_0_5_axi_master (
M_RESETN,
M_ARVALID,
M_AWVALID,
M_BREADY,
M_RREADY,
M_WLAST,
M_WVALID,
M_ARID,
M_AWID,
M_WID,
M_ARBURST,
M_ARLOCK,
M_ARSIZE,
M_AWBURST,
M_AWLOCK,
M_AWSIZE,
M_ARPROT,
M_AWPROT,
M_ARADDR,
M_AWADDR,
M_WDATA,
M_ARCACHE,
M_ARLEN,
M_AWCACHE,
M_AWLEN,
M_ARQOS, // not connected to AXI BFM
M_AWQOS, // not connected to AXI BFM
M_WSTRB,
M_ACLK,
M_ARREADY,
M_AWREADY,
M_BVALID,
M_RLAST,
M_RVALID,
M_WREADY,
M_BID,
M_RID,
M_BRESP,
M_RRESP,
M_RDATA
);
parameter enable_this_port = 0;
parameter master_name = "Master";
parameter data_bus_width = 32;
parameter address_bus_width = 32;
parameter id_bus_width = 6;
parameter max_outstanding_transactions = 8;
parameter exclusive_access_supported = 0;
parameter ID = 12'hC00;
`include "processing_system7_bfm_v2_0_5_local_params.v"
/* IDs for Masters
// l2m1 (CPU000)
12'b11_000_000_00_00
12'b11_010_000_00_00
12'b11_011_000_00_00
12'b11_100_000_00_00
12'b11_101_000_00_00
12'b11_110_000_00_00
12'b11_111_000_00_00
// l2m1 (CPU001)
12'b11_000_001_00_00
12'b11_010_001_00_00
12'b11_011_001_00_00
12'b11_100_001_00_00
12'b11_101_001_00_00
12'b11_110_001_00_00
12'b11_111_001_00_00
*/
input M_RESETN;
output M_ARVALID;
output M_AWVALID;
output M_BREADY;
output M_RREADY;
output M_WLAST;
output M_WVALID;
output [id_bus_width-1:0] M_ARID;
output [id_bus_width-1:0] M_AWID;
output [id_bus_width-1:0] M_WID;
output [axi_brst_type_width-1:0] M_ARBURST;
output [axi_lock_width-1:0] M_ARLOCK;
output [axi_size_width-1:0] M_ARSIZE;
output [axi_brst_type_width-1:0] M_AWBURST;
output [axi_lock_width-1:0] M_AWLOCK;
output [axi_size_width-1:0] M_AWSIZE;
output [axi_prot_width-1:0] M_ARPROT;
output [axi_prot_width-1:0] M_AWPROT;
output [address_bus_width-1:0] M_ARADDR;
output [address_bus_width-1:0] M_AWADDR;
output [data_bus_width-1:0] M_WDATA;
output [axi_cache_width-1:0] M_ARCACHE;
output [axi_len_width-1:0] M_ARLEN;
output [axi_qos_width-1:0] M_ARQOS; // not connected to AXI BFM
output [axi_cache_width-1:0] M_AWCACHE;
output [axi_len_width-1:0] M_AWLEN;
output [axi_qos_width-1:0] M_AWQOS; // not connected to AXI BFM
output [(data_bus_width/8)-1:0] M_WSTRB;
input M_ACLK;
input M_ARREADY;
input M_AWREADY;
input M_BVALID;
input M_RLAST;
input M_RVALID;
input M_WREADY;
input [id_bus_width-1:0] M_BID;
input [id_bus_width-1:0] M_RID;
input [axi_rsp_width-1:0] M_BRESP;
input [axi_rsp_width-1:0] M_RRESP;
input [data_bus_width-1:0] M_RDATA;
wire net_RESETN;
wire net_RVALID;
wire net_BVALID;
reg DEBUG_INFO = 1'b1;
reg STOP_ON_ERROR = 1'b1;
integer use_id_no = 0;
assign M_ARQOS = 'b0;
assign M_AWQOS = 'b0;
assign net_RESETN = M_RESETN; //ENABLE_THIS_PORT ? M_RESETN : 1'b0;
assign net_RVALID = enable_this_port ? M_RVALID : 1'b0;
assign net_BVALID = enable_this_port ? M_BVALID : 1'b0;
initial begin
if(DEBUG_INFO) begin
if(enable_this_port)
$display("[%0d] : %0s : %0s : Port is ENABLED.",$time, DISP_INFO, master_name);
else
$display("[%0d] : %0s : %0s : Port is DISABLED.",$time, DISP_INFO, master_name);
end
end
initial master.set_disable_reset_value_checks(1);
initial begin
repeat(2) @(posedge M_ACLK);
if(!enable_this_port) begin
master.set_channel_level_info(0);
master.set_function_level_info(0);
end
master.RESPONSE_TIMEOUT = 0;
end
cdn_axi3_master_bfm #(master_name,
data_bus_width,
address_bus_width,
id_bus_width,
max_outstanding_transactions,
exclusive_access_supported)
master (.ACLK (M_ACLK),
.ARESETn (net_RESETN), /// confirm this
// Write Address Channel
.AWID (M_AWID),
.AWADDR (M_AWADDR),
.AWLEN (M_AWLEN),
.AWSIZE (M_AWSIZE),
.AWBURST (M_AWBURST),
.AWLOCK (M_AWLOCK),
.AWCACHE (M_AWCACHE),
.AWPROT (M_AWPROT),
.AWVALID (M_AWVALID),
.AWREADY (M_AWREADY),
// Write Data Channel Signals.
.WID (M_WID),
.WDATA (M_WDATA),
.WSTRB (M_WSTRB),
.WLAST (M_WLAST),
.WVALID (M_WVALID),
.WREADY (M_WREADY),
// Write Response Channel Signals.
.BID (M_BID),
.BRESP (M_BRESP),
.BVALID (net_BVALID),
.BREADY (M_BREADY),
// Read Address Channel Signals.
.ARID (M_ARID),
.ARADDR (M_ARADDR),
.ARLEN (M_ARLEN),
.ARSIZE (M_ARSIZE),
.ARBURST (M_ARBURST),
.ARLOCK (M_ARLOCK),
.ARCACHE (M_ARCACHE),
.ARPROT (M_ARPROT),
.ARVALID (M_ARVALID),
.ARREADY (M_ARREADY),
// Read Data Channel Signals.
.RID (M_RID),
.RDATA (M_RDATA),
.RRESP (M_RRESP),
.RLAST (M_RLAST),
.RVALID (net_RVALID),
.RREADY (M_RREADY));
/* Call to BFM APIs */
task automatic read_burst(input [address_bus_width-1:0] addr,input [axi_len_width-1:0] len,input [axi_size_width-1:0] siz,input [axi_brst_type_width-1:0] burst,input [axi_lock_width-1:0] lck,input [axi_cache_width-1:0] cache,input [axi_prot_width-1:0] prot,output [(axi_mgp_data_width*axi_burst_len)-1:0] data, output [(axi_rsp_width*axi_burst_len)-1:0] response);
if(enable_this_port)begin
if(lck !== AXI_NRML)
master.READ_BURST(ID,addr,len,siz,burst,lck,cache,prot,data,response);
else
master.READ_BURST(ID,addr,len,siz,burst,lck,cache,prot,data,response);
end else begin
$display("[%0d] : %0s : %0s : Port is disabled. 'read_burst' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end
endtask
task automatic write_burst(input [address_bus_width-1:0] addr,input [axi_len_width-1:0] len,input [axi_size_width-1:0] siz,input [axi_brst_type_width-1:0] burst,input [axi_lock_width-1:0] lck,input [axi_cache_width-1:0] cache,input [axi_prot_width-1:0] prot,input [(axi_mgp_data_width*axi_burst_len)-1:0] data,input integer datasize, output [axi_rsp_width-1:0] response);
if(enable_this_port)begin
if(lck !== AXI_NRML)
master.WRITE_BURST(ID,addr,len,siz,burst,lck,cache,prot,data,datasize,response);
else
master.WRITE_BURST(ID,addr,len,siz,burst,lck,cache,prot,data,datasize,response);
end else begin
$display("[%0d] : %0s : %0s : Port is disabled. 'write_burst' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end
endtask
task automatic write_burst_concurrent(input [address_bus_width-1:0] addr,input [axi_len_width-1:0] len,input [axi_size_width-1:0] siz,input [axi_brst_type_width-1:0] burst,input [axi_lock_width-1:0] lck,input [axi_cache_width-1:0] cache,input [axi_prot_width-1:0] prot,input [(axi_mgp_data_width*axi_burst_len)-1:0] data,input integer datasize, output [axi_rsp_width-1:0] response);
if(enable_this_port)begin
if(lck !== AXI_NRML)
master.WRITE_BURST_CONCURRENT(ID,addr,len,siz,burst,lck,cache,prot,data,datasize,response);
else
master.WRITE_BURST_CONCURRENT(ID,addr,len,siz,burst,lck,cache,prot,data,datasize,response);
end else begin
$display("[%0d] : %0s : %0s : Port is disabled. 'write_burst_concurrent' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end
endtask
/* local */
function automatic[id_bus_width-1:0] get_id;
input dummy;
begin
case(use_id_no)
// l2m1 (CPU000)
0 : get_id = 12'b11_000_000_00_00;
1 : get_id = 12'b11_010_000_00_00;
2 : get_id = 12'b11_011_000_00_00;
3 : get_id = 12'b11_100_000_00_00;
4 : get_id = 12'b11_101_000_00_00;
5 : get_id = 12'b11_110_000_00_00;
6 : get_id = 12'b11_111_000_00_00;
// l2m1 (CPU001)
7 : get_id = 12'b11_000_001_00_00;
8 : get_id = 12'b11_010_001_00_00;
9 : get_id = 12'b11_011_001_00_00;
10 : get_id = 12'b11_100_001_00_00;
11 : get_id = 12'b11_101_001_00_00;
12 : get_id = 12'b11_110_001_00_00;
13 : get_id = 12'b11_111_001_00_00;
endcase
if(use_id_no == 13)
use_id_no = 0;
else
use_id_no = use_id_no+1;
end
endfunction
/* Write data from file */
task automatic write_from_file;
input [(max_chars*8)-1:0] file_name;
input [addr_width-1:0] start_addr;
input [int_width-1:0] wr_size;
output [axi_rsp_width-1:0] response;
reg [axi_rsp_width-1:0] wresp,rwrsp;
reg [addr_width-1:0] addr;
reg [(axi_burst_len*data_bus_width)-1 : 0] wr_data;
integer bytes;
integer trnsfr_bytes;
integer wr_fd;
integer succ;
integer trnsfr_lngth;
reg concurrent;
reg [id_bus_width-1:0] wr_id;
reg [axi_size_width-1:0] siz;
reg [axi_brst_type_width-1:0] burst;
reg [axi_lock_width-1:0] lck;
reg [axi_cache_width-1:0] cache;
reg [axi_prot_width-1:0] prot;
begin
if(!enable_this_port) begin
$display("[%0d] : %0s : %0s : Port is disabled. 'write_from_file' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end else begin
siz = 2;
burst = 1;
lck = 0;
cache = 0;
prot = 0;
addr = start_addr;
bytes = wr_size;
wresp = 0;
concurrent = $random;
if(bytes > (axi_burst_len * data_bus_width/8))
trnsfr_bytes = (axi_burst_len * data_bus_width/8);
else
trnsfr_bytes = bytes;
if(bytes > (axi_burst_len * data_bus_width/8))
trnsfr_lngth = axi_burst_len-1;
else if(bytes%(data_bus_width/8) == 0)
trnsfr_lngth = bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = bytes/(data_bus_width/8);
wr_id = ID;
wr_fd = $fopen(file_name,"r");
while (bytes > 0) begin
repeat(axi_burst_len) begin /// get the data for 1 AXI burst transaction
wr_data = wr_data >> data_bus_width;
succ = $fscanf(wr_fd,"%h",wr_data[(axi_burst_len*data_bus_width)-1 :(axi_burst_len*data_bus_width)-data_bus_width ]); /// write as 4 bytes (data_bus_width) ..
end
if(concurrent)
master.WRITE_BURST_CONCURRENT(wr_id, addr, trnsfr_lngth, siz, burst, lck, cache, prot, wr_data, trnsfr_bytes, rwrsp);
else
master.WRITE_BURST(wr_id, addr, trnsfr_lngth, siz, burst, lck, cache, prot, wr_data, trnsfr_bytes, rwrsp);
bytes = bytes - trnsfr_bytes;
addr = addr + trnsfr_bytes;
if(bytes >= (axi_burst_len * data_bus_width/8) )
trnsfr_bytes = (axi_burst_len * data_bus_width/8); //
else
trnsfr_bytes = bytes;
if(bytes > (axi_burst_len * data_bus_width/8))
trnsfr_lngth = axi_burst_len-1;
else if(bytes%(data_bus_width/8) == 0)
trnsfr_lngth = bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = bytes/(data_bus_width/8);
wresp = wresp | rwrsp;
end /// while
response = wresp;
end
end
endtask
/* Read data to file */
task automatic read_to_file;
input [(max_chars*8)-1:0] file_name;
input [addr_width-1:0] start_addr;
input [int_width-1:0] rd_size;
output [axi_rsp_width-1:0] response;
reg [axi_rsp_width-1:0] rresp, rrrsp;
reg [addr_width-1:0] addr;
integer bytes;
integer trnsfr_lngth;
reg [(axi_burst_len*data_bus_width)-1 :0] rd_data;
integer rd_fd;
reg [id_bus_width-1:0] rd_id;
reg [axi_size_width-1:0] siz;
reg [axi_brst_type_width-1:0] burst;
reg [axi_lock_width-1:0] lck;
reg [axi_cache_width-1:0] cache;
reg [axi_prot_width-1:0] prot;
begin
if(!enable_this_port) begin
$display("[%0d] : %0s : %0s : Port is disabled. 'read_to_file' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end else begin
siz = 2;
burst = 1;
lck = 0;
cache = 0;
prot = 0;
addr = start_addr;
rresp = 0;
bytes = rd_size;
rd_id = ID;
if(bytes > (axi_burst_len * data_bus_width/8))
trnsfr_lngth = axi_burst_len-1;
else if(bytes%(data_bus_width/8) == 0)
trnsfr_lngth = bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = bytes/(data_bus_width/8);
rd_fd = $fopen(file_name,"w");
while (bytes > 0) begin
master.READ_BURST(rd_id, addr, trnsfr_lngth, siz, burst, lck, cache, prot, rd_data, rrrsp);
repeat(trnsfr_lngth+1) begin
$fdisplayh(rd_fd,rd_data[data_bus_width-1:0]);
rd_data = rd_data >> data_bus_width;
end
addr = addr + (trnsfr_lngth+1)*4;
if(bytes >= (axi_burst_len * data_bus_width/8) )
bytes = bytes - (axi_burst_len * data_bus_width/8); //
else
bytes = 0;
if(bytes > (axi_burst_len * data_bus_width/8))
trnsfr_lngth = axi_burst_len-1;
else if(bytes%(data_bus_width/8) == 0)
trnsfr_lngth = bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = bytes/(data_bus_width/8);
rresp = rresp | rrrsp;
end /// while
response = rresp;
end
end
endtask
/* Write data (used for transfer size <= 128 Bytes */
task automatic write_data;
input [addr_width-1:0] start_addr;
input [max_transfer_bytes_width:0] wr_size;
input [(max_transfer_bytes*8)-1:0] w_data;
output [axi_rsp_width-1:0] response;
reg [axi_rsp_width-1:0] wresp,rwrsp;
reg [addr_width-1:0] addr;
reg [7:0] bytes,tmp_bytes;
integer trnsfr_bytes;
reg [(max_transfer_bytes*8)-1:0] wr_data;
integer trnsfr_lngth;
reg concurrent;
reg [id_bus_width-1:0] wr_id;
reg [axi_size_width-1:0] siz;
reg [axi_brst_type_width-1:0] burst;
reg [axi_lock_width-1:0] lck;
reg [axi_cache_width-1:0] cache;
reg [axi_prot_width-1:0] prot;
integer pad_bytes;
begin
if(!enable_this_port) begin
$display("[%0d] : %0s : %0s : Port is disabled. 'write_data' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end else begin
addr = start_addr;
bytes = wr_size;
wresp = 0;
wr_data = w_data;
concurrent = $random;
siz = 2;
burst = 1;
lck = 0;
cache = 0;
prot = 0;
pad_bytes = start_addr[clogb2(data_bus_width/8)-1:0];
wr_id = ID;
if(bytes+pad_bytes > (data_bus_width/8*axi_burst_len)) begin /// for unaligned address
trnsfr_bytes = (data_bus_width*axi_burst_len)/8 - pad_bytes;//start_addr[1:0];
trnsfr_lngth = axi_burst_len-1;
end else begin
trnsfr_bytes = bytes;
tmp_bytes = bytes + pad_bytes;//start_addr[1:0];
if(tmp_bytes%(data_bus_width/8) == 0)
trnsfr_lngth = tmp_bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = tmp_bytes/(data_bus_width/8);
end
while (bytes > 0) begin
if(concurrent)
master.WRITE_BURST_CONCURRENT(wr_id, addr, trnsfr_lngth, siz, burst, lck, cache, prot, wr_data[(axi_burst_len*data_bus_width)-1:0], trnsfr_bytes, rwrsp);
else
master.WRITE_BURST(wr_id, addr, trnsfr_lngth, siz, burst, lck, cache, prot, wr_data[(axi_burst_len*data_bus_width)-1:0], trnsfr_bytes, rwrsp);
wr_data = wr_data >> (trnsfr_bytes*8);
bytes = bytes - trnsfr_bytes;
addr = addr + trnsfr_bytes;
if(bytes > (axi_burst_len * data_bus_width/8)) begin
trnsfr_bytes = (axi_burst_len * data_bus_width/8) - pad_bytes;//start_addr[1:0];
trnsfr_lngth = axi_burst_len-1;
end else begin
trnsfr_bytes = bytes;
tmp_bytes = bytes + pad_bytes;//start_addr[1:0];
if(tmp_bytes%(data_bus_width/8) == 0)
trnsfr_lngth = tmp_bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = tmp_bytes/(data_bus_width/8);
end
wresp = wresp | rwrsp;
end /// while
response = wresp;
end
end
endtask
/* Read data (used for transfer size <= 128 Bytes */
task automatic read_data;
input [addr_width-1:0] start_addr;
input [max_transfer_bytes_width:0] rd_size;
output [(max_transfer_bytes*8)-1:0] r_data;
output [axi_rsp_width-1:0] response;
reg [axi_rsp_width-1:0] rresp,rdrsp;
reg [addr_width-1:0] addr;
reg [max_transfer_bytes_width:0] bytes,tmp_bytes;
integer trnsfr_bytes;
reg [(max_transfer_bytes*8)-1 : 0] rd_data;
reg [(axi_burst_len*data_bus_width)-1:0] rcv_rd_data;
integer total_rcvd_bytes;
integer trnsfr_lngth;
integer i;
reg [id_bus_width-1:0] rd_id;
reg [axi_size_width-1:0] siz;
reg [axi_brst_type_width-1:0] burst;
reg [axi_lock_width-1:0] lck;
reg [axi_cache_width-1:0] cache;
reg [axi_prot_width-1:0] prot;
integer pad_bytes;
begin
if(!enable_this_port) begin
$display("[%0d] : %0s : %0s : Port is disabled. 'read_data' will not be executed...",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end else begin
addr = start_addr;
bytes = rd_size;
rresp = 0;
total_rcvd_bytes = 0;
rd_data = 0;
rd_id = ID;
siz = 2;
burst = 1;
lck = 0;
cache = 0;
prot = 0;
pad_bytes = start_addr[clogb2(data_bus_width/8)-1:0];
if(bytes+ pad_bytes > (axi_burst_len * data_bus_width/8)) begin /// for unaligned address
trnsfr_bytes = (axi_burst_len * data_bus_width/8) - pad_bytes;//start_addr[1:0];
trnsfr_lngth = axi_burst_len-1;
end else begin
trnsfr_bytes = bytes;
tmp_bytes = bytes + pad_bytes;//start_addr[1:0];
if(tmp_bytes%(data_bus_width/8) == 0)
trnsfr_lngth = tmp_bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = tmp_bytes/(data_bus_width/8);
end
while (bytes > 0) begin
master.READ_BURST(rd_id,addr, trnsfr_lngth, siz, burst, lck, cache, prot, rcv_rd_data, rdrsp);
for(i = 0; i < trnsfr_bytes; i = i+1) begin
rd_data = rd_data >> 8;
rd_data[(max_transfer_bytes*8)-1 : (max_transfer_bytes*8)-8] = rcv_rd_data[7:0];
rcv_rd_data = rcv_rd_data >> 8;
total_rcvd_bytes = total_rcvd_bytes+1;
end
bytes = bytes - trnsfr_bytes;
addr = addr + trnsfr_bytes;
if(bytes > (axi_burst_len * data_bus_width/8)) begin
trnsfr_bytes = (axi_burst_len * data_bus_width/8) - pad_bytes;//start_addr[1:0];
trnsfr_lngth = 15;
end else begin
trnsfr_bytes = bytes;
tmp_bytes = bytes + pad_bytes;//start_addr[1:0];
if(tmp_bytes%(data_bus_width/8) == 0)
trnsfr_lngth = tmp_bytes/(data_bus_width/8) - 1;
else
trnsfr_lngth = tmp_bytes/(data_bus_width/8);
end
rresp = rresp | rdrsp;
end /// while
rd_data = rd_data >> (max_transfer_bytes - total_rcvd_bytes)*8;
r_data = rd_data;
response = rresp;
end
end
endtask
/* Wait Register Update in PL */
/* Issue a series of 1 burst length reads until the expected data pattern is received */
task automatic wait_reg_update;
input [addr_width-1:0] addri;
input [data_width-1:0] datai;
input [data_width-1:0] maski;
input [int_width-1:0] time_interval;
input [int_width-1:0] time_out;
output [data_width-1:0] data_o;
output upd_done;
reg [addr_width-1:0] addr;
reg [data_width-1:0] data_i;
reg [data_width-1:0] mask_i;
integer time_int;
integer timeout;
reg [axi_rsp_width-1:0] rdrsp;
reg [id_bus_width-1:0] rd_id;
reg [axi_size_width-1:0] siz;
reg [axi_brst_type_width-1:0] burst;
reg [axi_lock_width-1:0] lck;
reg [axi_cache_width-1:0] cache;
reg [axi_prot_width-1:0] prot;
reg [data_width-1:0] rcv_data;
integer trnsfr_lngth;
reg rd_loop;
reg timed_out;
integer i;
integer cycle_cnt;
begin
addr = addri;
data_i = datai;
mask_i = maski;
time_int = time_interval;
timeout = time_out;
timed_out = 0;
cycle_cnt = 0;
if(!enable_this_port) begin
$display("[%0d] : %0s : %0s : Port is disabled. 'wait_reg_update' will not be executed...",$time, DISP_ERR, master_name);
upd_done = 0;
if(STOP_ON_ERROR) $stop;
end else begin
rd_id = ID;
siz = 2;
burst = 1;
lck = 0;
cache = 0;
prot = 0;
trnsfr_lngth = 0;
rd_loop = 1;
fork
begin
while(!timed_out & rd_loop) begin
cycle_cnt = cycle_cnt + 1;
if(cycle_cnt >= timeout) timed_out = 1;
@(posedge M_ACLK);
end
end
begin
while (rd_loop) begin
if(DEBUG_INFO)
$display("[%0d] : %0s : %0s : Reading Register mapped at Address(0x%0h) ",$time, master_name, DISP_INFO, addr);
master.READ_BURST(rd_id,addr, trnsfr_lngth, siz, burst, lck, cache, prot, rcv_data, rdrsp);
if(DEBUG_INFO)
$display("[%0d] : %0s : %0s : Reading Register returned (0x%0h) ",$time, master_name, DISP_INFO, rcv_data);
if(((rcv_data & ~mask_i) === (data_i & ~mask_i)) | timed_out)
rd_loop = 0;
else
repeat(time_int) @(posedge M_ACLK);
end /// while
end
join
data_o = rcv_data & ~mask_i;
if(timed_out) begin
$display("[%0d] : %0s : %0s : 'wait_reg_update' timed out ... Register is not updated ",$time, DISP_ERR, master_name);
if(STOP_ON_ERROR) $stop;
end else
upd_done = 1;
end
end
endtask
endmodule
|
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2005 by Wilson Snyder.
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
// verilator lint_off UNOPT
// verilator lint_off UNOPTFLAT
// verilator lint_off MULTIDRIVEN
// verilator lint_off BLKANDNBLK
reg [31:0] comcnt;
reg [31:0] dlycnt; initial dlycnt=0;
reg [31:0] lastdlycnt; initial lastdlycnt = 0;
reg [31:0] comrun; initial comrun = 0;
reg [31:0] comrunm1;
reg [31:0] dlyrun; initial dlyrun = 0;
reg [31:0] dlyrunm1;
always @ (posedge clk) begin
$write("[%0t] cyc %d\n",$time,cyc);
cyc <= cyc + 1;
if (cyc==2) begin
// Test # of iters
lastdlycnt = 0;
comcnt = 0;
dlycnt <= 0;
end
if (cyc==3) begin
dlyrun <= 5;
dlycnt <= 0;
end
if (cyc==4) begin
comrun = 4;
end
end
always @ (negedge clk) begin
if (cyc==5) begin
$display("%d %d\n", dlycnt, comcnt);
if (dlycnt != 32'd5) $stop;
if (comcnt != 32'd19) $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
// This forms a "loop" where we keep going through the always till comrun=0
reg runclk; initial runclk = 1'b0;
always @ (/*AS*/comrunm1 or dlycnt) begin
if (lastdlycnt != dlycnt) begin
comrun = 3;
$write ("[%0t] comrun=%0d start\n", $time, comrun);
end
else if (comrun > 0) begin
comrun = comrunm1;
if (comrunm1==1) begin
runclk = 1;
$write ("[%0t] comrun=%0d [trigger clk]\n", $time, comrun);
end
else $write ("[%0t] comrun=%0d\n", $time, comrun);
end
lastdlycnt = dlycnt;
end
always @ (/*AS*/comrun) begin
if (comrun!=0) begin
comrunm1 = comrun - 32'd1;
comcnt = comcnt + 32'd1;
$write("[%0t] comcnt=%0d\n",$time,comcnt);
end
end
// This forms a "loop" where we keep going through the always till dlyrun=0
reg runclkrst;
always @ (posedge runclk) begin
runclkrst <= 1;
$write ("[%0t] runclk\n", $time);
if (dlyrun > 0) begin
dlyrun <= dlyrun - 32'd1;
dlycnt <= dlycnt + 32'd1;
$write ("[%0t] dlyrun<=%0d\n", $time, dlyrun-32'd1);
end
end
always @* begin
if (runclkrst) begin
$write ("[%0t] runclk reset\n", $time);
runclkrst = 0;
runclk = 0;
end
end
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_mask_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] M,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign m_local = M;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b0 ) ) |
( ( ( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_mask_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] M,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign m_local = M;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b0 ) ) |
( ( ( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is responsible for accepting 128/256 bit descriptors and
buffering them in descriptor FIFOs. Each bytelane of the descriptor
can be written to individually and writing ot the descriptor 'go' bit
commits the data into the FIFO. Reading that data out of the FIFO
occurs two cycles after the read is asserted as the FIFOs do not support
lookahead mode.
This block must keep local copies of per descriptor information like
the optional sequence number or interrupt masks. When parked mode
is set in the descriptor the same will transfer multiple times when
the descriptor FIFO only contains one descriptor (and this descriptor
will not be popped). Parked mode is useful for video frame buffering.
1.0 - The on-chip memory in the FIFOs are not inferred so there may
be some extra unused bits. In a later Quartus II release the
on-chip memory will be replaced with inferred memory.
1.1 - Shifted all descriptor registers into this block (from the dispatcher
block). Added breakout blocks responsible for re-packing the
information for use by each master.
1.2 - Added the read_early_done_enable bit to the breakout (for debug)
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module descriptor_buffers (
clk,
reset,
writedata,
write,
byteenable,
waitrequest,
read_command_valid,
read_command_ready,
read_command_data,
read_command_empty,
read_command_full,
read_command_used,
write_command_valid,
write_command_ready,
write_command_data,
write_command_empty,
write_command_full,
write_command_used,
stop_issuing_commands,
stop,
sw_reset,
sequence_number,
transfer_complete_IRQ_mask,
early_termination_IRQ_mask,
error_IRQ_mask
);
parameter MODE = 0;
parameter DATA_WIDTH = 256;
parameter BYTE_ENABLE_WIDTH = 32;
parameter FIFO_DEPTH = 128;
parameter FIFO_DEPTH_LOG2 = 7; // top level module can figure this out
input clk;
input reset;
input [DATA_WIDTH-1:0] writedata;
input write;
input [BYTE_ENABLE_WIDTH-1:0] byteenable;
output wire waitrequest;
output wire read_command_valid;
input read_command_ready;
output wire [255:0] read_command_data;
output wire read_command_empty;
output wire read_command_full;
output wire [FIFO_DEPTH_LOG2:0] read_command_used;
output wire write_command_valid;
input write_command_ready;
output wire [255:0] write_command_data;
output wire write_command_empty;
output wire write_command_full;
output wire [FIFO_DEPTH_LOG2:0] write_command_used;
input stop_issuing_commands;
input stop;
input sw_reset;
output wire [31:0] sequence_number;
output wire transfer_complete_IRQ_mask;
output wire early_termination_IRQ_mask;
output wire [7:0] error_IRQ_mask;
/* Internal wires and registers */
reg write_command_empty_d1;
reg write_command_empty_d2;
reg read_command_empty_d1;
reg read_command_empty_d2;
wire push_write_fifo;
wire pop_write_fifo;
wire push_read_fifo;
wire pop_read_fifo;
wire go_bit;
wire read_park;
wire read_park_enable; // park is enabled when read_park is enabled and the read FIFO is empty
wire write_park;
wire write_park_enable; // park is enabled when write_park is enabled and the write FIFO is empty
wire [DATA_WIDTH-1:0] write_fifo_output;
wire [DATA_WIDTH-1:0] read_fifo_output;
wire [15:0] write_sequence_number;
reg [15:0] write_sequence_number_d1;
wire [15:0] read_sequence_number;
reg [15:0] read_sequence_number_d1;
wire read_transfer_complete_IRQ_mask;
reg read_transfer_complete_IRQ_mask_d1;
wire write_transfer_complete_IRQ_mask;
reg write_transfer_complete_IRQ_mask_d1;
wire write_early_termination_IRQ_mask;
reg write_early_termination_IRQ_mask_d1;
wire [7:0] write_error_IRQ_mask;
reg [7:0] write_error_IRQ_mask_d1;
wire issue_write_descriptor; // one cycle strobe used to indicate when there is a valid write descriptor ready to be sent to the write master
wire issue_read_descriptor; // one cycle strobe used to indicate when there is a valid write descriptor ready to be sent to the write master
/* Unused signals that are provided for debug convenience */
wire [31:0] read_address;
wire [31:0] read_length;
wire [7:0] read_transmit_channel;
wire read_generate_sop;
wire read_generate_eop;
wire [7:0] read_burst_count;
wire [15:0] read_stride;
wire [7:0] read_transmit_error;
wire read_early_done_enable;
wire [31:0] write_address;
wire [31:0] write_length;
wire write_end_on_eop;
wire [7:0] write_burst_count;
wire [15:0] write_stride;
/************************************************* Registers *******************************************************/
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
write_sequence_number_d1 <= 0;
write_transfer_complete_IRQ_mask_d1 <= 0;
write_early_termination_IRQ_mask_d1 <= 0;
write_error_IRQ_mask_d1 <= 0;
end
else if (issue_write_descriptor) // if parked mode is enabled and there are no more descriptors buffered then this will not fire when the command is sent out
begin
write_sequence_number_d1 <= write_sequence_number;
write_transfer_complete_IRQ_mask_d1 <= write_transfer_complete_IRQ_mask;
write_early_termination_IRQ_mask_d1 <= write_early_termination_IRQ_mask;
write_error_IRQ_mask_d1 <= write_error_IRQ_mask;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
read_sequence_number_d1 <= 0;
read_transfer_complete_IRQ_mask_d1 <= 0;
end
else if (issue_read_descriptor) // if parked mode is enabled and there are no more descriptors buffered then this will not fire when the command is sent out
begin
read_sequence_number_d1 <= read_sequence_number;
read_transfer_complete_IRQ_mask_d1 <= read_transfer_complete_IRQ_mask;
end
end
// need to use a delayed valid signal since the commmand buffers have two cycles of latency
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
write_command_empty_d1 <= 0;
write_command_empty_d2 <= 0;
read_command_empty_d1 <= 0;
read_command_empty_d2 <= 0;
end
else
begin
write_command_empty_d1 <= write_command_empty;
write_command_empty_d2 <= write_command_empty_d1;
read_command_empty_d1 <= read_command_empty;
read_command_empty_d2 <= read_command_empty_d1;
end
end
/*********************************************** End Registers *****************************************************/
/****************************************** Module Instantiations **************************************************/
/* the write_signal_break module simply takes the output of the descriptor buffer and reformats the data
* to be sent in the command format needed by the master command port. If new features are added to the
* descriptor format then add it to this block. This block also provides the descriptor information
* using a naming convention isn't of bit indexes in a 256 bit wide command signal.
*/
write_signal_breakout the_write_signal_breakout (
.write_command_data_in (write_fifo_output),
.write_command_data_out (write_command_data),
.write_address (write_address),
.write_length (write_length),
.write_park (write_park),
.write_end_on_eop (write_end_on_eop),
.write_transfer_complete_IRQ_mask (write_transfer_complete_IRQ_mask),
.write_early_termination_IRQ_mask (write_early_termination_IRQ_mask),
.write_error_IRQ_mask (write_error_IRQ_mask),
.write_burst_count (write_burst_count),
.write_stride (write_stride),
.write_sequence_number (write_sequence_number),
.write_stop (stop),
.write_sw_reset (sw_reset)
);
defparam the_write_signal_breakout.DATA_WIDTH = DATA_WIDTH;
/* the read_signal_break module simply takes the output of the descriptor buffer and reformats the data
* to be sent in the command format needed by the master command port. If new features are added to the
* descriptor format then add it to this block. This block also provides the descriptor information
* using a naming convention isn't of bit indexes in a 256 bit wide command signal.
*/
read_signal_breakout the_read_signal_breakout (
.read_command_data_in (read_fifo_output),
.read_command_data_out (read_command_data),
.read_address (read_address),
.read_length (read_length),
.read_transmit_channel (read_transmit_channel),
.read_generate_sop (read_generate_sop),
.read_generate_eop (read_generate_eop),
.read_park (read_park),
.read_transfer_complete_IRQ_mask (read_transfer_complete_IRQ_mask),
.read_burst_count (read_burst_count),
.read_stride (read_stride),
.read_sequence_number (read_sequence_number),
.read_transmit_error (read_transmit_error),
.read_early_done_enable (read_early_done_enable),
.read_stop (stop),
.read_sw_reset (sw_reset)
);
defparam the_read_signal_breakout.DATA_WIDTH = DATA_WIDTH;
// Descriptor FIFO allows for each byte lane to be written to and the data is not committed to the FIFO until the 'push' signal is asserted.
// This differs from scfifo which commits the data any time the write signal is asserted.
fifo_with_byteenables the_read_command_FIFO (
.clk (clk),
.areset (reset),
.sreset (sw_reset),
.write_data (writedata),
.write_byteenables (byteenable),
.write (write),
.push (push_read_fifo),
.read_data (read_fifo_output),
.pop (pop_read_fifo),
.used (read_command_used), // this is a 'true used' signal with the full bit accounted for
.full (read_command_full),
.empty (read_command_empty)
);
defparam the_read_command_FIFO.DATA_WIDTH = DATA_WIDTH; // we are not actually going to use all these bits and byte lanes left unconnected at the output will get optimized away
defparam the_read_command_FIFO.FIFO_DEPTH = FIFO_DEPTH;
defparam the_read_command_FIFO.FIFO_DEPTH_LOG2 = FIFO_DEPTH_LOG2;
defparam the_read_command_FIFO.LATENCY = 2;
// Descriptor FIFO allows for each byte lane to be written to and the data is not committed to the FIFO until the 'push' signal is asserted.
// This differs from scfifo which commits the data any time the write signal is asserted.
fifo_with_byteenables the_write_command_FIFO (
.clk (clk),
.areset (reset),
.sreset (sw_reset),
.write_data (writedata),
.write_byteenables (byteenable),
.write (write),
.push (push_write_fifo),
.read_data (write_fifo_output),
.pop (pop_write_fifo),
.used (write_command_used), // this is a 'true used' signal with the full bit accounted for
.full (write_command_full),
.empty (write_command_empty)
);
defparam the_write_command_FIFO.DATA_WIDTH = DATA_WIDTH; // we are not actually going to use all these bits and byte lanes left unconnected at the output will get optimized away
defparam the_write_command_FIFO.FIFO_DEPTH = FIFO_DEPTH;
defparam the_write_command_FIFO.FIFO_DEPTH_LOG2 = FIFO_DEPTH_LOG2;
defparam the_write_command_FIFO.LATENCY = 2;
/**************************************** End Module Instantiations ************************************************/
/****************************************** Combinational Signals **************************************************/
generate // all unnecessary signals and drivers will be optimized away
if (MODE == 0) // MM-->MM
begin
assign waitrequest = (read_command_full == 1) | (write_command_full == 1);
// information for the CSR or response blocks to use
assign sequence_number = {write_sequence_number_d1, read_sequence_number_d1};
assign transfer_complete_IRQ_mask = write_transfer_complete_IRQ_mask_d1;
assign early_termination_IRQ_mask = 1'b0;
assign error_IRQ_mask = 8'h00;
// read buffer flow control
assign push_read_fifo = go_bit;
assign read_park_enable = (read_park == 1) & (read_command_used == 1); // we want to keep the descriptor in the FIFO when the park bit is set
assign read_command_valid = (stop == 0) & (sw_reset == 0) & (stop_issuing_commands == 0) &
(read_command_empty == 0) & (read_command_empty_d1 == 0) & (read_command_empty_d2 == 0); // command buffer has two cycles of latency so the empty deassertion need to delayed two cycles but asserted in zero cycles, the time between commands will be at least 2 cycles so this delay is only needed coming out of the empty condition
assign issue_read_descriptor = (read_command_valid == 1) & (read_command_ready == 1);
assign pop_read_fifo = (issue_read_descriptor == 1) & (read_park_enable == 0); // don't want to pop the fifo if we are in parked mode
// write buffer flow control
assign push_write_fifo = go_bit;
assign write_park_enable = (write_park == 1) & (write_command_used == 1); // we want to keep the descriptor in the FIFO when the park bit is set
assign write_command_valid = (stop == 0) & (sw_reset == 0) & (stop_issuing_commands == 0) &
(write_command_empty == 0) & (write_command_empty_d1 == 0) & (write_command_empty_d2 == 0); // command buffer has two cycles of latency so the empty deassertion need to delayed two cycles but asserted in zero cycles, the time between commands will be at least 2 cycles so this delay is only needed coming out of the empty condition
assign issue_write_descriptor = (write_command_valid == 1) & (write_command_ready == 1);
assign pop_write_fifo = (issue_write_descriptor == 1) & (write_park_enable == 0); // don't want to pop the fifo if we are in parked mode
end
else if (MODE == 1) // MM-->ST
begin
// information for the CSR or response blocks to use
assign sequence_number = {16'h0000, read_sequence_number_d1};
assign transfer_complete_IRQ_mask = read_transfer_complete_IRQ_mask_d1;
assign early_termination_IRQ_mask = 1'b0;
assign error_IRQ_mask = 8'h00;
assign waitrequest = (read_command_full == 1);
// read buffer flow control
assign push_read_fifo = go_bit;
assign read_park_enable = (read_park == 1) & (read_command_used == 1); // we want to keep the descriptor in the FIFO when the park bit is set
assign read_command_valid = (stop == 0) & (sw_reset == 0) & (stop_issuing_commands == 0) &
(read_command_empty == 0) & (read_command_empty_d1 == 0) & (read_command_empty_d2 == 0); // command buffer has two cycles of latency so the empty deassertion need to delayed two cycles but asserted in zero cycles, the time between commands will be at least 2 cycles so this delay is only needed coming out of the empty condition
assign issue_read_descriptor = (read_command_valid == 1) & (read_command_ready == 1);
assign pop_read_fifo = (issue_read_descriptor == 1) & (read_park_enable == 0); // don't want to pop the fifo if we are in parked mode
// write buffer flow control
assign push_write_fifo = 0;
assign write_park_enable = 0;
assign write_command_valid = 0;
assign issue_write_descriptor = 0;
assign pop_write_fifo = 0;
end
else // ST-->MM
begin
// information for the CSR or response blocks to use
assign sequence_number = {write_sequence_number_d1, 16'h0000};
assign transfer_complete_IRQ_mask = write_transfer_complete_IRQ_mask_d1;
assign early_termination_IRQ_mask = write_early_termination_IRQ_mask_d1;
assign error_IRQ_mask = write_error_IRQ_mask_d1;
assign waitrequest = (write_command_full == 1);
// read buffer flow control
assign push_read_fifo = 0;
assign read_park_enable = 0;
assign read_command_valid = 0;
assign issue_read_descriptor = 0;
assign pop_read_fifo = 0;
// write buffer flow control
assign push_write_fifo = go_bit;
assign write_park_enable = (write_park == 1) & (write_command_used == 1); // we want to keep the descriptor in the FIFO when the park bit is set
assign write_command_valid = (stop == 0) & (sw_reset == 0) & (stop_issuing_commands == 0) &
(write_command_empty == 0) & (write_command_empty_d1 == 0) & (write_command_empty_d2 == 0); // command buffer has two cycles of latency so the empty deassertion need to delayed two cycles but asserted in zero cycles, the time between commands will be at least 2 cycles so this delay is only needed coming out of the empty condition
assign issue_write_descriptor = (write_command_valid == 1) & (write_command_ready == 1);
assign pop_write_fifo = (issue_write_descriptor == 1) & (write_park_enable == 0); // don't want to pop the fifo if we are in parked mode
end
endgenerate
generate // go bit is in a different location depending on the width of the slave port
if (DATA_WIDTH == 256)
begin
assign go_bit = (writedata[255] == 1) & (write == 1) & (byteenable[31] == 1) & (waitrequest == 0);
end
else
begin
assign go_bit = (writedata[127] == 1) & (write == 1) & (byteenable[15] == 1) & (waitrequest == 0);
end
endgenerate
/**************************************** End Combinational Signals ************************************************/
endmodule
|
// (C) 1992-2012 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// Low latency FIFO
// One cycle latency from all inputs to all outputs
// Storage implemented in registers, not memory.
module acl_iface_ll_fifo(clk, reset, data_in, write, data_out, read, empty, full);
/* Parameters */
parameter WIDTH = 32;
parameter DEPTH = 32;
/* Ports */
input clk;
input reset;
input [WIDTH-1:0] data_in;
input write;
output [WIDTH-1:0] data_out;
input read;
output empty;
output full;
/* Architecture */
// One-hot write-pointer bit (indicates next position to write at),
// last bit indicates the FIFO is full
reg [DEPTH:0] wptr;
// Replicated copy of the stall / valid logic
reg [DEPTH:0] wptr_copy /* synthesis dont_merge */;
// FIFO data registers
reg [DEPTH-1:0][WIDTH-1:0] data;
// Write pointer updates:
wire wptr_hold; // Hold the value
wire wptr_dir; // Direction to shift
// Data register updates:
wire [DEPTH-1:0] data_hold; // Hold the value
wire [DEPTH-1:0] data_new; // Write the new data value in
// Write location is constant unless the occupancy changes
assign wptr_hold = !(read ^ write);
assign wptr_dir = read;
// Hold the value unless we are reading, or writing to this
// location
genvar i;
generate
for(i = 0; i < DEPTH; i++)
begin : data_mux
assign data_hold[i] = !(read | (write & wptr[i]));
assign data_new[i] = !read | wptr[i+1];
end
endgenerate
// The data registers
generate
for(i = 0; i < DEPTH-1; i++)
begin : data_reg
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[i] <= {WIDTH{1'b0}};
else
data[i] <= data_hold[i] ? data[i] :
data_new[i] ? data_in : data[i+1];
end
end
endgenerate
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[DEPTH-1] <= {WIDTH{1'b0}};
else
data[DEPTH-1] <= data_hold[DEPTH-1] ? data[DEPTH-1] : data_in;
end
// The write pointer
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
wptr <= {{DEPTH{1'b0}}, 1'b1};
wptr_copy <= {{DEPTH{1'b0}}, 1'b1};
end
else
begin
wptr <= wptr_hold ? wptr :
wptr_dir ? {1'b0, wptr[DEPTH:1]} : {wptr[DEPTH-1:0], 1'b0};
wptr_copy <= wptr_hold ? wptr_copy :
wptr_dir ? {1'b0, wptr_copy[DEPTH:1]} : {wptr_copy[DEPTH-1:0], 1'b0};
end
end
// Outputs
assign empty = wptr_copy[0];
assign full = wptr_copy[DEPTH];
assign data_out = data[0];
endmodule
|
// (C) 1992-2012 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// Low latency FIFO
// One cycle latency from all inputs to all outputs
// Storage implemented in registers, not memory.
module acl_iface_ll_fifo(clk, reset, data_in, write, data_out, read, empty, full);
/* Parameters */
parameter WIDTH = 32;
parameter DEPTH = 32;
/* Ports */
input clk;
input reset;
input [WIDTH-1:0] data_in;
input write;
output [WIDTH-1:0] data_out;
input read;
output empty;
output full;
/* Architecture */
// One-hot write-pointer bit (indicates next position to write at),
// last bit indicates the FIFO is full
reg [DEPTH:0] wptr;
// Replicated copy of the stall / valid logic
reg [DEPTH:0] wptr_copy /* synthesis dont_merge */;
// FIFO data registers
reg [DEPTH-1:0][WIDTH-1:0] data;
// Write pointer updates:
wire wptr_hold; // Hold the value
wire wptr_dir; // Direction to shift
// Data register updates:
wire [DEPTH-1:0] data_hold; // Hold the value
wire [DEPTH-1:0] data_new; // Write the new data value in
// Write location is constant unless the occupancy changes
assign wptr_hold = !(read ^ write);
assign wptr_dir = read;
// Hold the value unless we are reading, or writing to this
// location
genvar i;
generate
for(i = 0; i < DEPTH; i++)
begin : data_mux
assign data_hold[i] = !(read | (write & wptr[i]));
assign data_new[i] = !read | wptr[i+1];
end
endgenerate
// The data registers
generate
for(i = 0; i < DEPTH-1; i++)
begin : data_reg
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[i] <= {WIDTH{1'b0}};
else
data[i] <= data_hold[i] ? data[i] :
data_new[i] ? data_in : data[i+1];
end
end
endgenerate
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[DEPTH-1] <= {WIDTH{1'b0}};
else
data[DEPTH-1] <= data_hold[DEPTH-1] ? data[DEPTH-1] : data_in;
end
// The write pointer
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
wptr <= {{DEPTH{1'b0}}, 1'b1};
wptr_copy <= {{DEPTH{1'b0}}, 1'b1};
end
else
begin
wptr <= wptr_hold ? wptr :
wptr_dir ? {1'b0, wptr[DEPTH:1]} : {wptr[DEPTH-1:0], 1'b0};
wptr_copy <= wptr_hold ? wptr_copy :
wptr_dir ? {1'b0, wptr_copy[DEPTH:1]} : {wptr_copy[DEPTH-1:0], 1'b0};
end
end
// Outputs
assign empty = wptr_copy[0];
assign full = wptr_copy[DEPTH];
assign data_out = data[0];
endmodule
|
// (C) 1992-2012 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// Low latency FIFO
// One cycle latency from all inputs to all outputs
// Storage implemented in registers, not memory.
module acl_iface_ll_fifo(clk, reset, data_in, write, data_out, read, empty, full);
/* Parameters */
parameter WIDTH = 32;
parameter DEPTH = 32;
/* Ports */
input clk;
input reset;
input [WIDTH-1:0] data_in;
input write;
output [WIDTH-1:0] data_out;
input read;
output empty;
output full;
/* Architecture */
// One-hot write-pointer bit (indicates next position to write at),
// last bit indicates the FIFO is full
reg [DEPTH:0] wptr;
// Replicated copy of the stall / valid logic
reg [DEPTH:0] wptr_copy /* synthesis dont_merge */;
// FIFO data registers
reg [DEPTH-1:0][WIDTH-1:0] data;
// Write pointer updates:
wire wptr_hold; // Hold the value
wire wptr_dir; // Direction to shift
// Data register updates:
wire [DEPTH-1:0] data_hold; // Hold the value
wire [DEPTH-1:0] data_new; // Write the new data value in
// Write location is constant unless the occupancy changes
assign wptr_hold = !(read ^ write);
assign wptr_dir = read;
// Hold the value unless we are reading, or writing to this
// location
genvar i;
generate
for(i = 0; i < DEPTH; i++)
begin : data_mux
assign data_hold[i] = !(read | (write & wptr[i]));
assign data_new[i] = !read | wptr[i+1];
end
endgenerate
// The data registers
generate
for(i = 0; i < DEPTH-1; i++)
begin : data_reg
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[i] <= {WIDTH{1'b0}};
else
data[i] <= data_hold[i] ? data[i] :
data_new[i] ? data_in : data[i+1];
end
end
endgenerate
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
data[DEPTH-1] <= {WIDTH{1'b0}};
else
data[DEPTH-1] <= data_hold[DEPTH-1] ? data[DEPTH-1] : data_in;
end
// The write pointer
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
wptr <= {{DEPTH{1'b0}}, 1'b1};
wptr_copy <= {{DEPTH{1'b0}}, 1'b1};
end
else
begin
wptr <= wptr_hold ? wptr :
wptr_dir ? {1'b0, wptr[DEPTH:1]} : {wptr[DEPTH-1:0], 1'b0};
wptr_copy <= wptr_hold ? wptr_copy :
wptr_dir ? {1'b0, wptr_copy[DEPTH:1]} : {wptr_copy[DEPTH-1:0], 1'b0};
end
end
// Outputs
assign empty = wptr_copy[0];
assign full = wptr_copy[DEPTH];
assign data_out = data[0];
endmodule
|
module snoop_adapter (
clk,
reset,
kernel_clk,
kernel_reset,
address,
read,
readdata,
readdatavalid,
write,
writedata,
burstcount,
byteenable,
waitrequest,
burstbegin,
snoop_data,
snoop_valid,
snoop_ready,
export_address,
export_read,
export_readdata,
export_readdatavalid,
export_write,
export_writedata,
export_burstcount,
export_burstbegin,
export_byteenable,
export_waitrequest
);
parameter NUM_BYTES = 4;
parameter BYTE_ADDRESS_WIDTH = 32;
parameter WORD_ADDRESS_WIDTH = 32;
parameter BURSTCOUNT_WIDTH = 1;
localparam DATA_WIDTH = NUM_BYTES * 8;
localparam ADDRESS_SHIFT = BYTE_ADDRESS_WIDTH - WORD_ADDRESS_WIDTH;
localparam DEVICE_BLOCKRAM_MIN_DEPTH = 256; //Stratix IV M9Ks
localparam FIFO_SIZE = DEVICE_BLOCKRAM_MIN_DEPTH;
localparam LOG2_FIFO_SIZE =$clog2(FIFO_SIZE);
input clk;
input reset;
input kernel_clk;
input kernel_reset;
input [WORD_ADDRESS_WIDTH-1:0] address;
input read;
output [DATA_WIDTH-1:0] readdata;
output readdatavalid;
input write;
input [DATA_WIDTH-1:0] writedata;
input [BURSTCOUNT_WIDTH-1:0] burstcount;
input burstbegin;
input [NUM_BYTES-1:0] byteenable;
output waitrequest;
output [1+WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0] snoop_data;
output snoop_valid;
input snoop_ready;
output [BYTE_ADDRESS_WIDTH-1:0] export_address;
output export_read;
input [DATA_WIDTH-1:0] export_readdata;
input export_readdatavalid;
output export_write;
output [DATA_WIDTH-1:0] export_writedata;
output [BURSTCOUNT_WIDTH-1:0] export_burstcount;
output export_burstbegin;
output [NUM_BYTES-1:0] export_byteenable;
input export_waitrequest;
reg snoop_overflow;
// Register snoop data first
reg [WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0] snoop_data_r; //word-address
reg snoop_valid_r;
wire snoop_fifo_empty;
wire overflow;
wire [ LOG2_FIFO_SIZE-1 : 0 ] rdusedw;
always@(posedge clk)
begin
snoop_data_r<={address,export_burstcount};
snoop_valid_r<=export_write && !export_waitrequest;
end
// 1) Fifo to store snooped accesses from host
dcfifo dcfifo_component (
.wrclk (clk),
.data (snoop_data_r),
.wrreq (snoop_valid_r),
.rdclk (kernel_clk),
.rdreq (snoop_valid & snoop_ready),
.q (snoop_data[WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0]),
.rdempty (snoop_fifo_empty),
.rdfull (overflow),
.aclr (1'b0),
.rdusedw (rdusedw),
.wrempty (),
.wrfull (),
.wrusedw ());
defparam
dcfifo_component.intended_device_family = "Stratix IV",
dcfifo_component.lpm_numwords = FIFO_SIZE,
dcfifo_component.lpm_showahead = "ON",
dcfifo_component.lpm_type = "dcfifo",
dcfifo_component.lpm_width = WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH,
dcfifo_component.lpm_widthu = LOG2_FIFO_SIZE,
dcfifo_component.overflow_checking = "ON",
dcfifo_component.rdsync_delaypipe = 4,
dcfifo_component.underflow_checking = "ON",
dcfifo_component.use_eab = "ON",
dcfifo_component.wrsync_delaypipe = 4;
assign snoop_valid=~snoop_fifo_empty;
always@(posedge kernel_clk)
snoop_overflow = ( rdusedw >= ( FIFO_SIZE - 12 ) );
// Overflow piggy backed onto MSB of stream. Since overflow guarantees
// there is something to be read out, we can be sure that this will reach
// the cache.
assign snoop_data[WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH] = snoop_overflow;
assign export_address = address << ADDRESS_SHIFT;
assign export_read = read;
assign readdata = export_readdata;
assign readdatavalid = export_readdatavalid;
assign export_write = write;
assign export_writedata = writedata;
assign export_burstcount = burstcount;
assign export_burstbegin = burstbegin;
assign export_byteenable = byteenable;
assign waitrequest = export_waitrequest;
endmodule
|
module snoop_adapter (
clk,
reset,
kernel_clk,
kernel_reset,
address,
read,
readdata,
readdatavalid,
write,
writedata,
burstcount,
byteenable,
waitrequest,
burstbegin,
snoop_data,
snoop_valid,
snoop_ready,
export_address,
export_read,
export_readdata,
export_readdatavalid,
export_write,
export_writedata,
export_burstcount,
export_burstbegin,
export_byteenable,
export_waitrequest
);
parameter NUM_BYTES = 4;
parameter BYTE_ADDRESS_WIDTH = 32;
parameter WORD_ADDRESS_WIDTH = 32;
parameter BURSTCOUNT_WIDTH = 1;
localparam DATA_WIDTH = NUM_BYTES * 8;
localparam ADDRESS_SHIFT = BYTE_ADDRESS_WIDTH - WORD_ADDRESS_WIDTH;
localparam DEVICE_BLOCKRAM_MIN_DEPTH = 256; //Stratix IV M9Ks
localparam FIFO_SIZE = DEVICE_BLOCKRAM_MIN_DEPTH;
localparam LOG2_FIFO_SIZE =$clog2(FIFO_SIZE);
input clk;
input reset;
input kernel_clk;
input kernel_reset;
input [WORD_ADDRESS_WIDTH-1:0] address;
input read;
output [DATA_WIDTH-1:0] readdata;
output readdatavalid;
input write;
input [DATA_WIDTH-1:0] writedata;
input [BURSTCOUNT_WIDTH-1:0] burstcount;
input burstbegin;
input [NUM_BYTES-1:0] byteenable;
output waitrequest;
output [1+WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0] snoop_data;
output snoop_valid;
input snoop_ready;
output [BYTE_ADDRESS_WIDTH-1:0] export_address;
output export_read;
input [DATA_WIDTH-1:0] export_readdata;
input export_readdatavalid;
output export_write;
output [DATA_WIDTH-1:0] export_writedata;
output [BURSTCOUNT_WIDTH-1:0] export_burstcount;
output export_burstbegin;
output [NUM_BYTES-1:0] export_byteenable;
input export_waitrequest;
reg snoop_overflow;
// Register snoop data first
reg [WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0] snoop_data_r; //word-address
reg snoop_valid_r;
wire snoop_fifo_empty;
wire overflow;
wire [ LOG2_FIFO_SIZE-1 : 0 ] rdusedw;
always@(posedge clk)
begin
snoop_data_r<={address,export_burstcount};
snoop_valid_r<=export_write && !export_waitrequest;
end
// 1) Fifo to store snooped accesses from host
dcfifo dcfifo_component (
.wrclk (clk),
.data (snoop_data_r),
.wrreq (snoop_valid_r),
.rdclk (kernel_clk),
.rdreq (snoop_valid & snoop_ready),
.q (snoop_data[WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH-1:0]),
.rdempty (snoop_fifo_empty),
.rdfull (overflow),
.aclr (1'b0),
.rdusedw (rdusedw),
.wrempty (),
.wrfull (),
.wrusedw ());
defparam
dcfifo_component.intended_device_family = "Stratix IV",
dcfifo_component.lpm_numwords = FIFO_SIZE,
dcfifo_component.lpm_showahead = "ON",
dcfifo_component.lpm_type = "dcfifo",
dcfifo_component.lpm_width = WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH,
dcfifo_component.lpm_widthu = LOG2_FIFO_SIZE,
dcfifo_component.overflow_checking = "ON",
dcfifo_component.rdsync_delaypipe = 4,
dcfifo_component.underflow_checking = "ON",
dcfifo_component.use_eab = "ON",
dcfifo_component.wrsync_delaypipe = 4;
assign snoop_valid=~snoop_fifo_empty;
always@(posedge kernel_clk)
snoop_overflow = ( rdusedw >= ( FIFO_SIZE - 12 ) );
// Overflow piggy backed onto MSB of stream. Since overflow guarantees
// there is something to be read out, we can be sure that this will reach
// the cache.
assign snoop_data[WORD_ADDRESS_WIDTH+BURSTCOUNT_WIDTH] = snoop_overflow;
assign export_address = address << ADDRESS_SHIFT;
assign export_read = read;
assign readdata = export_readdata;
assign readdatavalid = export_readdatavalid;
assign export_write = write;
assign export_writedata = writedata;
assign export_burstcount = burstcount;
assign export_burstbegin = burstbegin;
assign export_byteenable = byteenable;
assign waitrequest = export_waitrequest;
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_mask #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] M,
input wire [C_DATA_WIDTH-1:0] V,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {V, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign m_local = M;
assign v_local = V;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b0 ) ) |
( ( ( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( v_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_mask #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] M,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 2;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign m_local = M;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] V,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {V, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = V;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] V,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {V, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = V;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] V,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {V, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = V;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
input wire [C_DATA_WIDTH-1:0] V,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 1;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {V, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = V;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 08/21/2009
Version 1.3
This logic recieves a potentially unsupported byte enable combination and
breaks it down into supported byte enable combinations to the fabric.
For example if a 64-bit write master wants to write
to addresses 0x1 and beyond, this maps to address 0x0 with byte enables
"11111110" asserted. This does not contain a power of two of neighbooring
asserted bits. Instead this block will convert this into three writes
all of which are supported: "00000010", "00001100", and "11110000". When
this block breaks a transfer down it asserts stall so that the rest of the
master logic will keep the outputs constant.
Revision History:
1.0 Initial version - Used a word distance to calculate which lanes to enable.
1.1 Re-encoded version - Uses byte enables directly to calculate which lanes
to enable. This allows byte enables in the middle
of a word to be supported as well such as '0110'.
1.2 Bug fix to include the waitrequest for state transitions when the byte
enable width is greater than 2.
1.3 Added support for 64 and 128-bit byte enables (for 512/1024 bit data paths)
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module byte_enable_generator (
clk,
reset,
// master side
write_in,
byteenable_in,
waitrequest_out,
// fabric side
byteenable_out,
waitrequest_in
);
parameter BYTEENABLE_WIDTH = 4; // valid byteenable widths are 1, 2, 4, 8, 16, 32, 64, and 128
input clk;
input reset;
input write_in; // will enable state machine logic
input [BYTEENABLE_WIDTH-1:0] byteenable_in; // byteenables from master which contain unsupported groupings of byte lanes to be converted
output wire waitrequest_out; // used to stall the master when fabric asserts waitrequest or access needs to be broken down
output wire [BYTEENABLE_WIDTH-1:0] byteenable_out; // supported byte enables to the fabric
input waitrequest_in; // waitrequest from the fabric
generate
if (BYTEENABLE_WIDTH == 1) // for completeness...
begin
assign byteenable_out = byteenable_in;
assign waitrequest_out = waitrequest_in;
end
else if (BYTEENABLE_WIDTH == 2)
begin
sixteen_bit_byteenable_FSM the_sixteen_bit_byteenable_FSM ( // pass through for the most part like the 1 bit case, has it's own module since the 4 bit module uses it
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 4)
begin
thirty_two_bit_byteenable_FSM the_thirty_two_bit_byteenable_FSM(
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 8)
begin
sixty_four_bit_byteenable_FSM the_sixty_four_bit_byteenable_FSM(
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 16)
begin
one_hundred_twenty_eight_bit_byteenable_FSM the_one_hundred_twenty_eight_bit_byteenable_FSM(
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 32)
begin
two_hundred_fifty_six_bit_byteenable_FSM the_two_hundred_fifty_six_bit_byteenable_FSM(
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 64)
begin
five_hundred_twelve_bit_byteenable_FSM the_five_hundred_twelve_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
else if (BYTEENABLE_WIDTH == 128)
begin
one_thousand_twenty_four_byteenable_FSM the_one_thousand_twenty_four_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (write_in),
.byteenable_in (byteenable_in),
.waitrequest_out (waitrequest_out),
.byteenable_out (byteenable_out),
.waitrequest_in (waitrequest_in)
);
end
endgenerate
endmodule
module one_thousand_twenty_four_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [127:0] byteenable_in;
output wire waitrequest_out;
output wire [127:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[63:0] != 0);
assign full_lower_half_transfer = (byteenable_in[63:0] == 64'hFFFFFFFFFFFFFFFF);
assign partial_upper_half_transfer = (byteenable_in[127:64] != 0);
assign full_upper_half_transfer = (byteenable_in[127:64] == 64'hFFFFFFFFFFFFFFFF);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
five_hundred_twelve_bit_byteenable_FSM lower_five_hundred_twelve_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (lower_enable),
.byteenable_in (byteenable_in[63:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[63:0]),
.waitrequest_in (waitrequest_in)
);
five_hundred_twelve_bit_byteenable_FSM upper_five_hundred_twelve_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (upper_enable),
.byteenable_in (byteenable_in[127:64]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[127:64]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
module five_hundred_twelve_bit_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [63:0] byteenable_in;
output wire waitrequest_out;
output wire [63:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[31:0] != 0);
assign full_lower_half_transfer = (byteenable_in[31:0] == 32'hFFFFFFFF);
assign partial_upper_half_transfer = (byteenable_in[63:32] != 0);
assign full_upper_half_transfer = (byteenable_in[63:32] == 32'hFFFFFFFF);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
two_hundred_fifty_six_bit_byteenable_FSM lower_two_hundred_fifty_six_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (lower_enable),
.byteenable_in (byteenable_in[31:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[31:0]),
.waitrequest_in (waitrequest_in)
);
two_hundred_fifty_six_bit_byteenable_FSM upper_two_hundred_fifty_six_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (upper_enable),
.byteenable_in (byteenable_in[63:32]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[63:32]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
module two_hundred_fifty_six_bit_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [31:0] byteenable_in;
output wire waitrequest_out;
output wire [31:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[15:0] != 0);
assign full_lower_half_transfer = (byteenable_in[15:0] == 16'hFFFF);
assign partial_upper_half_transfer = (byteenable_in[31:16] != 0);
assign full_upper_half_transfer = (byteenable_in[31:16] == 16'hFFFF);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
one_hundred_twenty_eight_bit_byteenable_FSM lower_one_hundred_twenty_eight_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (lower_enable),
.byteenable_in (byteenable_in[15:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[15:0]),
.waitrequest_in (waitrequest_in)
);
one_hundred_twenty_eight_bit_byteenable_FSM upper_one_hundred_twenty_eight_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (upper_enable),
.byteenable_in (byteenable_in[31:16]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[31:16]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
module one_hundred_twenty_eight_bit_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [15:0] byteenable_in;
output wire waitrequest_out;
output wire [15:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[7:0] != 0);
assign full_lower_half_transfer = (byteenable_in[7:0] == 8'hFF);
assign partial_upper_half_transfer = (byteenable_in[15:8] != 0);
assign full_upper_half_transfer = (byteenable_in[15:8] == 8'hFF);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
sixty_four_bit_byteenable_FSM lower_sixty_four_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (lower_enable),
.byteenable_in (byteenable_in[7:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[7:0]),
.waitrequest_in (waitrequest_in)
);
sixty_four_bit_byteenable_FSM upper_sixty_four_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (upper_enable),
.byteenable_in (byteenable_in[15:8]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[15:8]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
module sixty_four_bit_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [7:0] byteenable_in;
output wire waitrequest_out;
output wire [7:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[3:0] != 0);
assign full_lower_half_transfer = (byteenable_in[3:0] == 4'hF);
assign partial_upper_half_transfer = (byteenable_in[7:4] != 0);
assign full_upper_half_transfer = (byteenable_in[7:4] == 4'hF);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
thirty_two_bit_byteenable_FSM lower_thirty_two_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (lower_enable),
.byteenable_in (byteenable_in[3:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[3:0]),
.waitrequest_in (waitrequest_in)
);
thirty_two_bit_byteenable_FSM upper_thirty_two_bit_byteenable_FSM (
.clk (clk),
.reset (reset),
.write_in (upper_enable),
.byteenable_in (byteenable_in[7:4]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[7:4]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
module thirty_two_bit_byteenable_FSM (
clk,
reset,
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input clk;
input reset;
input write_in;
input [3:0] byteenable_in;
output wire waitrequest_out;
output wire [3:0] byteenable_out;
input waitrequest_in;
// internal statemachine signals
wire partial_lower_half_transfer;
wire full_lower_half_transfer;
wire partial_upper_half_transfer;
wire full_upper_half_transfer;
wire full_word_transfer;
reg state_bit;
wire transfer_done;
wire advance_to_next_state;
wire lower_enable;
wire upper_enable;
wire lower_stall;
wire upper_stall;
wire two_stage_transfer;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
state_bit <= 0;
end
else
begin
if (transfer_done == 1)
begin
state_bit <= 0;
end
else if (advance_to_next_state == 1)
begin
state_bit <= 1;
end
end
end
assign partial_lower_half_transfer = (byteenable_in[1:0] != 0);
assign full_lower_half_transfer = (byteenable_in[1:0] == 2'h3);
assign partial_upper_half_transfer = (byteenable_in[3:2] != 0);
assign full_upper_half_transfer = (byteenable_in[3:2] == 2'h3);
assign full_word_transfer = (full_lower_half_transfer == 1) & (full_upper_half_transfer == 1);
assign two_stage_transfer = (full_word_transfer == 0) & (partial_lower_half_transfer == 1) & (partial_upper_half_transfer == 1);
assign advance_to_next_state = (two_stage_transfer == 1) & (lower_stall == 0) & (write_in == 1) & (state_bit == 0) & (waitrequest_in == 0); // partial lower half transfer completed and there are bytes in the upper half that need to go out still
assign transfer_done = ((full_word_transfer == 1) & (waitrequest_in == 0) & (write_in == 1)) | // full word transfer complete
((two_stage_transfer == 0) & (lower_stall == 0) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)) | // partial upper or lower half transfer complete
((two_stage_transfer == 1) & (state_bit == 1) & (upper_stall == 0) & (write_in == 1) & (waitrequest_in == 0)); // partial upper and lower half transfers complete
assign lower_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_lower_half_transfer == 1)) | // only a partial lower half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_lower_half_transfer == 1) & (state_bit == 0)); // partial lower half transfer (to be followed by an upper half transfer)
assign upper_enable = ((write_in == 1) & (full_word_transfer == 1)) | // full word transfer
((write_in == 1) & (two_stage_transfer == 0) & (partial_upper_half_transfer == 1)) | // only a partial upper half transfer
((write_in == 1) & (two_stage_transfer == 1) & (partial_upper_half_transfer == 1) & (state_bit == 1)); // partial upper half transfer (after the lower half transfer)
sixteen_bit_byteenable_FSM lower_sixteen_bit_byteenable_FSM (
.write_in (lower_enable),
.byteenable_in (byteenable_in[1:0]),
.waitrequest_out (lower_stall),
.byteenable_out (byteenable_out[1:0]),
.waitrequest_in (waitrequest_in)
);
sixteen_bit_byteenable_FSM upper_sixteen_bit_byteenable_FSM (
.write_in (upper_enable),
.byteenable_in (byteenable_in[3:2]),
.waitrequest_out (upper_stall),
.byteenable_out (byteenable_out[3:2]),
.waitrequest_in (waitrequest_in)
);
assign waitrequest_out = (waitrequest_in == 1) | ((transfer_done == 0) & (write_in == 1));
endmodule
/**************************************************************************************************
Fundament byte enable state machine for which 32, 64, 128, 256, 512, and 1024 bit byte enable
statemachines will use to operate on groups of two byte enables.
***************************************************************************************************/
module sixteen_bit_byteenable_FSM (
write_in,
byteenable_in,
waitrequest_out,
byteenable_out,
waitrequest_in
);
input write_in;
input [1:0] byteenable_in;
output wire waitrequest_out;
output wire [1:0] byteenable_out;
input waitrequest_in;
assign byteenable_out = byteenable_in & {2{write_in}}; // all 2 bit byte enable pairs are supported, masked with write in to turn the byte lanes off when writing is disabled
assign waitrequest_out = (write_in == 1) & (waitrequest_in == 1); // transfer always completes on the first cycle unless waitrequest is asserted
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized AND with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_and #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN & ~I;
end else begin : USE_FPGA
wire I_n;
assign I_n = ~I;
AND2B1L and2b1l_inst
(
.O(O),
.DI(CIN),
.SRI(I_n)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized AND with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_and #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN & ~I;
end else begin : USE_FPGA
wire I_n;
assign I_n = ~I;
AND2B1L and2b1l_inst
(
.O(O),
.DI(CIN),
.SRI(I_n)
);
end
endgenerate
endmodule
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axi to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_vector2axi #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_awid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_awlen,
output wire [3-1:0] m_axi_awsize,
output wire [2-1:0] m_axi_awburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_awlock,
output wire [4-1:0] m_axi_awcache,
output wire [3-1:0] m_axi_awprot,
output wire [4-1:0] m_axi_awregion,
output wire [4-1:0] m_axi_awqos,
output wire [C_AXI_AWUSER_WIDTH-1:0] m_axi_awuser,
// Slave Interface Write Data Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_wid,
output wire [C_AXI_DATA_WIDTH-1:0] m_axi_wdata,
output wire [C_AXI_DATA_WIDTH/8-1:0] m_axi_wstrb,
output wire m_axi_wlast,
output wire [C_AXI_WUSER_WIDTH-1:0] m_axi_wuser,
// Slave Interface Write Response Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_bid,
input wire [2-1:0] m_axi_bresp,
input wire [C_AXI_BUSER_WIDTH-1:0] m_axi_buser,
// Slave Interface Read Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_arid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_arlen,
output wire [3-1:0] m_axi_arsize,
output wire [2-1:0] m_axi_arburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_arlock,
output wire [4-1:0] m_axi_arcache,
output wire [3-1:0] m_axi_arprot,
output wire [4-1:0] m_axi_arregion,
output wire [4-1:0] m_axi_arqos,
output wire [C_AXI_ARUSER_WIDTH-1:0] m_axi_aruser,
// Slave Interface Read Data Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_rid,
input wire [C_AXI_DATA_WIDTH-1:0] m_axi_rdata,
input wire [2-1:0] m_axi_rresp,
input wire m_axi_rlast,
input wire [C_AXI_RUSER_WIDTH-1:0] m_axi_ruser,
// payloads
input wire [C_AWPAYLOAD_WIDTH-1:0] m_awpayload,
input wire [C_WPAYLOAD_WIDTH-1:0] m_wpayload,
output wire [C_BPAYLOAD_WIDTH-1:0] m_bpayload,
input wire [C_ARPAYLOAD_WIDTH-1:0] m_arpayload,
output wire [C_RPAYLOAD_WIDTH-1:0] m_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign m_axi_awaddr = m_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH];
assign m_axi_awprot = m_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH];
assign m_axi_wdata = m_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH];
assign m_axi_wstrb = m_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH];
assign m_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH] = m_axi_bresp;
assign m_axi_araddr = m_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH];
assign m_axi_arprot = m_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH];
assign m_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH] = m_axi_rdata;
assign m_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH] = m_axi_rresp;
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign m_axi_awsize = m_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] ;
assign m_axi_awburst = m_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH];
assign m_axi_awcache = m_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH];
assign m_axi_awlen = m_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] ;
assign m_axi_awlock = m_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] ;
assign m_axi_awid = m_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] ;
assign m_axi_awqos = m_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] ;
assign m_axi_wlast = m_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] ;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign m_axi_wid = m_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] ;
end
else begin : gen_no_axi3_wid_packing
assign m_axi_wid = 1'b0;
end
assign m_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH] = m_axi_bid;
assign m_axi_arsize = m_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] ;
assign m_axi_arburst = m_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH];
assign m_axi_arcache = m_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH];
assign m_axi_arlen = m_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] ;
assign m_axi_arlock = m_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] ;
assign m_axi_arid = m_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] ;
assign m_axi_arqos = m_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] ;
assign m_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH] = m_axi_rlast;
assign m_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH] = m_axi_rid ;
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign m_axi_awregion = m_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH];
assign m_axi_arregion = m_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH];
end
else begin : gen_no_region_signals
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign m_axi_awuser = m_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH];
assign m_axi_wuser = m_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] ;
assign m_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH] = m_axi_buser ;
assign m_axi_aruser = m_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH];
assign m_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH] = m_axi_ruser ;
end
else begin : gen_no_user_signals
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign m_axi_awsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_awburst = 'b0;
assign m_axi_awcache = 'b0;
assign m_axi_awlen = 'b0;
assign m_axi_awlock = 'b0;
assign m_axi_awid = 'b0;
assign m_axi_awqos = 'b0;
assign m_axi_wlast = 1'b1;
assign m_axi_wid = 'b0;
assign m_axi_arsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_arburst = 'b0;
assign m_axi_arcache = 'b0;
assign m_axi_arlen = 'b0;
assign m_axi_arlock = 'b0;
assign m_axi_arid = 'b0;
assign m_axi_arqos = 'b0;
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axi to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_vector2axi #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_awid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_awlen,
output wire [3-1:0] m_axi_awsize,
output wire [2-1:0] m_axi_awburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_awlock,
output wire [4-1:0] m_axi_awcache,
output wire [3-1:0] m_axi_awprot,
output wire [4-1:0] m_axi_awregion,
output wire [4-1:0] m_axi_awqos,
output wire [C_AXI_AWUSER_WIDTH-1:0] m_axi_awuser,
// Slave Interface Write Data Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_wid,
output wire [C_AXI_DATA_WIDTH-1:0] m_axi_wdata,
output wire [C_AXI_DATA_WIDTH/8-1:0] m_axi_wstrb,
output wire m_axi_wlast,
output wire [C_AXI_WUSER_WIDTH-1:0] m_axi_wuser,
// Slave Interface Write Response Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_bid,
input wire [2-1:0] m_axi_bresp,
input wire [C_AXI_BUSER_WIDTH-1:0] m_axi_buser,
// Slave Interface Read Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_arid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_arlen,
output wire [3-1:0] m_axi_arsize,
output wire [2-1:0] m_axi_arburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_arlock,
output wire [4-1:0] m_axi_arcache,
output wire [3-1:0] m_axi_arprot,
output wire [4-1:0] m_axi_arregion,
output wire [4-1:0] m_axi_arqos,
output wire [C_AXI_ARUSER_WIDTH-1:0] m_axi_aruser,
// Slave Interface Read Data Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_rid,
input wire [C_AXI_DATA_WIDTH-1:0] m_axi_rdata,
input wire [2-1:0] m_axi_rresp,
input wire m_axi_rlast,
input wire [C_AXI_RUSER_WIDTH-1:0] m_axi_ruser,
// payloads
input wire [C_AWPAYLOAD_WIDTH-1:0] m_awpayload,
input wire [C_WPAYLOAD_WIDTH-1:0] m_wpayload,
output wire [C_BPAYLOAD_WIDTH-1:0] m_bpayload,
input wire [C_ARPAYLOAD_WIDTH-1:0] m_arpayload,
output wire [C_RPAYLOAD_WIDTH-1:0] m_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign m_axi_awaddr = m_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH];
assign m_axi_awprot = m_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH];
assign m_axi_wdata = m_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH];
assign m_axi_wstrb = m_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH];
assign m_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH] = m_axi_bresp;
assign m_axi_araddr = m_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH];
assign m_axi_arprot = m_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH];
assign m_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH] = m_axi_rdata;
assign m_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH] = m_axi_rresp;
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign m_axi_awsize = m_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] ;
assign m_axi_awburst = m_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH];
assign m_axi_awcache = m_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH];
assign m_axi_awlen = m_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] ;
assign m_axi_awlock = m_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] ;
assign m_axi_awid = m_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] ;
assign m_axi_awqos = m_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] ;
assign m_axi_wlast = m_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] ;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign m_axi_wid = m_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] ;
end
else begin : gen_no_axi3_wid_packing
assign m_axi_wid = 1'b0;
end
assign m_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH] = m_axi_bid;
assign m_axi_arsize = m_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] ;
assign m_axi_arburst = m_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH];
assign m_axi_arcache = m_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH];
assign m_axi_arlen = m_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] ;
assign m_axi_arlock = m_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] ;
assign m_axi_arid = m_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] ;
assign m_axi_arqos = m_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] ;
assign m_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH] = m_axi_rlast;
assign m_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH] = m_axi_rid ;
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign m_axi_awregion = m_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH];
assign m_axi_arregion = m_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH];
end
else begin : gen_no_region_signals
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign m_axi_awuser = m_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH];
assign m_axi_wuser = m_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] ;
assign m_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH] = m_axi_buser ;
assign m_axi_aruser = m_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH];
assign m_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH] = m_axi_ruser ;
end
else begin : gen_no_user_signals
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign m_axi_awsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_awburst = 'b0;
assign m_axi_awcache = 'b0;
assign m_axi_awlen = 'b0;
assign m_axi_awlock = 'b0;
assign m_axi_awid = 'b0;
assign m_axi_awqos = 'b0;
assign m_axi_wlast = 1'b1;
assign m_axi_wid = 'b0;
assign m_axi_arsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_arburst = 'b0;
assign m_axi_arcache = 'b0;
assign m_axi_arlen = 'b0;
assign m_axi_arlock = 'b0;
assign m_axi_arid = 'b0;
assign m_axi_arqos = 'b0;
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0_header.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 2;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 2;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 2;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_sel_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire S,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 2;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] v_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign v_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
assign v_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b0 ) ) |
( ( b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
v_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) & ( S == 1'b1 ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
// (c) Copyright 2012-2013 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
// Description: SRL based FIFO for AXIS/AXI Channels.
//--------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axic_srl_fifo #(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter C_FAMILY = "virtex7",
parameter integer C_PAYLOAD_WIDTH = 1,
parameter integer C_FIFO_DEPTH = 16 // Range: 4-16.
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
input wire aclk, // Clock
input wire aresetn, // Reset
input wire [C_PAYLOAD_WIDTH-1:0] s_payload, // Input data
input wire s_valid, // Input data valid
output reg s_ready, // Input data ready
output wire [C_PAYLOAD_WIDTH-1:0] m_payload, // Output data
output reg m_valid, // Output data valid
input wire m_ready // Output data ready
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
// ceiling logb2
function integer f_clogb2 (input integer size);
integer s;
begin
s = size;
s = s - 1;
for (f_clogb2=1; s>1; f_clogb2=f_clogb2+1)
s = s >> 1;
end
endfunction // clogb2
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
localparam integer LP_LOG_FIFO_DEPTH = f_clogb2(C_FIFO_DEPTH);
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
reg [LP_LOG_FIFO_DEPTH-1:0] fifo_index;
wire [4-1:0] fifo_addr;
wire push;
wire pop ;
reg areset_r1;
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
always @(posedge aclk) begin
areset_r1 <= ~aresetn;
end
always @(posedge aclk) begin
if (~aresetn) begin
fifo_index <= {LP_LOG_FIFO_DEPTH{1'b1}};
end
else begin
fifo_index <= push & ~pop ? fifo_index + 1'b1 :
~push & pop ? fifo_index - 1'b1 :
fifo_index;
end
end
assign push = s_valid & s_ready;
always @(posedge aclk) begin
if (~aresetn) begin
s_ready <= 1'b0;
end
else begin
s_ready <= areset_r1 ? 1'b1 :
push & ~pop && (fifo_index == (C_FIFO_DEPTH - 2'd2)) ? 1'b0 :
~push & pop ? 1'b1 :
s_ready;
end
end
assign pop = m_valid & m_ready;
always @(posedge aclk) begin
if (~aresetn) begin
m_valid <= 1'b0;
end
else begin
m_valid <= ~push & pop && (fifo_index == {LP_LOG_FIFO_DEPTH{1'b0}}) ? 1'b0 :
push & ~pop ? 1'b1 :
m_valid;
end
end
generate
if (LP_LOG_FIFO_DEPTH < 4) begin : gen_pad_fifo_addr
assign fifo_addr[0+:LP_LOG_FIFO_DEPTH] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
assign fifo_addr[LP_LOG_FIFO_DEPTH+:(4-LP_LOG_FIFO_DEPTH)] = {4-LP_LOG_FIFO_DEPTH{1'b0}};
end
else begin : gen_fifo_addr
assign fifo_addr[LP_LOG_FIFO_DEPTH-1:0] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
end
endgenerate
generate
genvar i;
for (i = 0; i < C_PAYLOAD_WIDTH; i = i + 1) begin : gen_data_bit
SRL16E
u_srl_fifo(
.Q ( m_payload[i] ) ,
.A0 ( fifo_addr[0] ) ,
.A1 ( fifo_addr[1] ) ,
.A2 ( fifo_addr[2] ) ,
.A3 ( fifo_addr[3] ) ,
.CE ( push ) ,
.CLK ( aclk ) ,
.D ( s_payload[i] )
);
end
endgenerate
endmodule
`default_nettype wire
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axi to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_vector2axi #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_awid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_awlen,
output wire [3-1:0] m_axi_awsize,
output wire [2-1:0] m_axi_awburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_awlock,
output wire [4-1:0] m_axi_awcache,
output wire [3-1:0] m_axi_awprot,
output wire [4-1:0] m_axi_awregion,
output wire [4-1:0] m_axi_awqos,
output wire [C_AXI_AWUSER_WIDTH-1:0] m_axi_awuser,
// Slave Interface Write Data Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_wid,
output wire [C_AXI_DATA_WIDTH-1:0] m_axi_wdata,
output wire [C_AXI_DATA_WIDTH/8-1:0] m_axi_wstrb,
output wire m_axi_wlast,
output wire [C_AXI_WUSER_WIDTH-1:0] m_axi_wuser,
// Slave Interface Write Response Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_bid,
input wire [2-1:0] m_axi_bresp,
input wire [C_AXI_BUSER_WIDTH-1:0] m_axi_buser,
// Slave Interface Read Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_arid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_arlen,
output wire [3-1:0] m_axi_arsize,
output wire [2-1:0] m_axi_arburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_arlock,
output wire [4-1:0] m_axi_arcache,
output wire [3-1:0] m_axi_arprot,
output wire [4-1:0] m_axi_arregion,
output wire [4-1:0] m_axi_arqos,
output wire [C_AXI_ARUSER_WIDTH-1:0] m_axi_aruser,
// Slave Interface Read Data Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_rid,
input wire [C_AXI_DATA_WIDTH-1:0] m_axi_rdata,
input wire [2-1:0] m_axi_rresp,
input wire m_axi_rlast,
input wire [C_AXI_RUSER_WIDTH-1:0] m_axi_ruser,
// payloads
input wire [C_AWPAYLOAD_WIDTH-1:0] m_awpayload,
input wire [C_WPAYLOAD_WIDTH-1:0] m_wpayload,
output wire [C_BPAYLOAD_WIDTH-1:0] m_bpayload,
input wire [C_ARPAYLOAD_WIDTH-1:0] m_arpayload,
output wire [C_RPAYLOAD_WIDTH-1:0] m_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign m_axi_awaddr = m_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH];
assign m_axi_awprot = m_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH];
assign m_axi_wdata = m_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH];
assign m_axi_wstrb = m_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH];
assign m_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH] = m_axi_bresp;
assign m_axi_araddr = m_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH];
assign m_axi_arprot = m_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH];
assign m_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH] = m_axi_rdata;
assign m_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH] = m_axi_rresp;
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign m_axi_awsize = m_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] ;
assign m_axi_awburst = m_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH];
assign m_axi_awcache = m_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH];
assign m_axi_awlen = m_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] ;
assign m_axi_awlock = m_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] ;
assign m_axi_awid = m_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] ;
assign m_axi_awqos = m_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] ;
assign m_axi_wlast = m_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] ;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign m_axi_wid = m_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] ;
end
else begin : gen_no_axi3_wid_packing
assign m_axi_wid = 1'b0;
end
assign m_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH] = m_axi_bid;
assign m_axi_arsize = m_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] ;
assign m_axi_arburst = m_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH];
assign m_axi_arcache = m_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH];
assign m_axi_arlen = m_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] ;
assign m_axi_arlock = m_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] ;
assign m_axi_arid = m_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] ;
assign m_axi_arqos = m_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] ;
assign m_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH] = m_axi_rlast;
assign m_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH] = m_axi_rid ;
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign m_axi_awregion = m_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH];
assign m_axi_arregion = m_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH];
end
else begin : gen_no_region_signals
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign m_axi_awuser = m_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH];
assign m_axi_wuser = m_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] ;
assign m_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH] = m_axi_buser ;
assign m_axi_aruser = m_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH];
assign m_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH] = m_axi_ruser ;
end
else begin : gen_no_user_signals
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign m_axi_awsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_awburst = 'b0;
assign m_axi_awcache = 'b0;
assign m_axi_awlen = 'b0;
assign m_axi_awlock = 'b0;
assign m_axi_awid = 'b0;
assign m_axi_awqos = 'b0;
assign m_axi_wlast = 1'b1;
assign m_axi_wid = 'b0;
assign m_axi_arsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_arburst = 'b0;
assign m_axi_arcache = 'b0;
assign m_axi_arlen = 'b0;
assign m_axi_arlock = 'b0;
assign m_axi_arid = 'b0;
assign m_axi_arqos = 'b0;
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axis to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axi2vector #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_awid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_awaddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_awlen,
input wire [3-1:0] s_axi_awsize,
input wire [2-1:0] s_axi_awburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_awlock,
input wire [4-1:0] s_axi_awcache,
input wire [3-1:0] s_axi_awprot,
input wire [4-1:0] s_axi_awregion,
input wire [4-1:0] s_axi_awqos,
input wire [C_AXI_AWUSER_WIDTH-1:0] s_axi_awuser,
// Slave Interface Write Data Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_wid,
input wire [C_AXI_DATA_WIDTH-1:0] s_axi_wdata,
input wire [C_AXI_DATA_WIDTH/8-1:0] s_axi_wstrb,
input wire s_axi_wlast,
input wire [C_AXI_WUSER_WIDTH-1:0] s_axi_wuser,
// Slave Interface Write Response Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_bid,
output wire [2-1:0] s_axi_bresp,
output wire [C_AXI_BUSER_WIDTH-1:0] s_axi_buser,
// Slave Interface Read Address Ports
input wire [C_AXI_ID_WIDTH-1:0] s_axi_arid,
input wire [C_AXI_ADDR_WIDTH-1:0] s_axi_araddr,
input wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] s_axi_arlen,
input wire [3-1:0] s_axi_arsize,
input wire [2-1:0] s_axi_arburst,
input wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] s_axi_arlock,
input wire [4-1:0] s_axi_arcache,
input wire [3-1:0] s_axi_arprot,
input wire [4-1:0] s_axi_arregion,
input wire [4-1:0] s_axi_arqos,
input wire [C_AXI_ARUSER_WIDTH-1:0] s_axi_aruser,
// Slave Interface Read Data Ports
output wire [C_AXI_ID_WIDTH-1:0] s_axi_rid,
output wire [C_AXI_DATA_WIDTH-1:0] s_axi_rdata,
output wire [2-1:0] s_axi_rresp,
output wire s_axi_rlast,
output wire [C_AXI_RUSER_WIDTH-1:0] s_axi_ruser,
// payloads
output wire [C_AWPAYLOAD_WIDTH-1:0] s_awpayload,
output wire [C_WPAYLOAD_WIDTH-1:0] s_wpayload,
input wire [C_BPAYLOAD_WIDTH-1:0] s_bpayload,
output wire [C_ARPAYLOAD_WIDTH-1:0] s_arpayload,
input wire [C_RPAYLOAD_WIDTH-1:0] s_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign s_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH] = s_axi_awaddr;
assign s_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH] = s_axi_awprot;
assign s_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH] = s_axi_wdata;
assign s_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH] = s_axi_wstrb;
assign s_axi_bresp = s_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH];
assign s_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH] = s_axi_araddr;
assign s_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH] = s_axi_arprot;
assign s_axi_rdata = s_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH];
assign s_axi_rresp = s_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH];
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign s_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] = s_axi_awsize;
assign s_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH] = s_axi_awburst;
assign s_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH] = s_axi_awcache;
assign s_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] = s_axi_awlen;
assign s_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] = s_axi_awlock;
assign s_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] = s_axi_awid;
assign s_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] = s_axi_awqos;
assign s_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] = s_axi_wlast;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign s_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] = s_axi_wid;
end
else begin : gen_no_axi3_wid_packing
end
assign s_axi_bid = s_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH];
assign s_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] = s_axi_arsize;
assign s_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH] = s_axi_arburst;
assign s_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH] = s_axi_arcache;
assign s_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] = s_axi_arlen;
assign s_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] = s_axi_arlock;
assign s_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] = s_axi_arid;
assign s_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] = s_axi_arqos;
assign s_axi_rlast = s_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH];
assign s_axi_rid = s_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH];
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign s_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH] = s_axi_awregion;
assign s_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH] = s_axi_arregion;
end
else begin : gen_no_region_signals
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign s_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH] = s_axi_awuser;
assign s_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] = s_axi_wuser;
assign s_axi_buser = s_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH];
assign s_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH] = s_axi_aruser;
assign s_axi_ruser = s_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH];
end
else begin : gen_no_user_signals
assign s_axi_buser = 'b0;
assign s_axi_ruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign s_axi_bid = 'b0;
assign s_axi_buser = 'b0;
assign s_axi_rlast = 1'b1;
assign s_axi_rid = 'b0;
assign s_axi_ruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
// (c) Copyright 2012-2013 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
// Description: SRL based FIFO for AXIS/AXI Channels.
//--------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axic_srl_fifo #(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter C_FAMILY = "virtex7",
parameter integer C_PAYLOAD_WIDTH = 1,
parameter integer C_FIFO_DEPTH = 16 // Range: 4-16.
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
input wire aclk, // Clock
input wire aresetn, // Reset
input wire [C_PAYLOAD_WIDTH-1:0] s_payload, // Input data
input wire s_valid, // Input data valid
output reg s_ready, // Input data ready
output wire [C_PAYLOAD_WIDTH-1:0] m_payload, // Output data
output reg m_valid, // Output data valid
input wire m_ready // Output data ready
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
// ceiling logb2
function integer f_clogb2 (input integer size);
integer s;
begin
s = size;
s = s - 1;
for (f_clogb2=1; s>1; f_clogb2=f_clogb2+1)
s = s >> 1;
end
endfunction // clogb2
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
localparam integer LP_LOG_FIFO_DEPTH = f_clogb2(C_FIFO_DEPTH);
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
reg [LP_LOG_FIFO_DEPTH-1:0] fifo_index;
wire [4-1:0] fifo_addr;
wire push;
wire pop ;
reg areset_r1;
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
always @(posedge aclk) begin
areset_r1 <= ~aresetn;
end
always @(posedge aclk) begin
if (~aresetn) begin
fifo_index <= {LP_LOG_FIFO_DEPTH{1'b1}};
end
else begin
fifo_index <= push & ~pop ? fifo_index + 1'b1 :
~push & pop ? fifo_index - 1'b1 :
fifo_index;
end
end
assign push = s_valid & s_ready;
always @(posedge aclk) begin
if (~aresetn) begin
s_ready <= 1'b0;
end
else begin
s_ready <= areset_r1 ? 1'b1 :
push & ~pop && (fifo_index == (C_FIFO_DEPTH - 2'd2)) ? 1'b0 :
~push & pop ? 1'b1 :
s_ready;
end
end
assign pop = m_valid & m_ready;
always @(posedge aclk) begin
if (~aresetn) begin
m_valid <= 1'b0;
end
else begin
m_valid <= ~push & pop && (fifo_index == {LP_LOG_FIFO_DEPTH{1'b0}}) ? 1'b0 :
push & ~pop ? 1'b1 :
m_valid;
end
end
generate
if (LP_LOG_FIFO_DEPTH < 4) begin : gen_pad_fifo_addr
assign fifo_addr[0+:LP_LOG_FIFO_DEPTH] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
assign fifo_addr[LP_LOG_FIFO_DEPTH+:(4-LP_LOG_FIFO_DEPTH)] = {4-LP_LOG_FIFO_DEPTH{1'b0}};
end
else begin : gen_fifo_addr
assign fifo_addr[LP_LOG_FIFO_DEPTH-1:0] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
end
endgenerate
generate
genvar i;
for (i = 0; i < C_PAYLOAD_WIDTH; i = i + 1) begin : gen_data_bit
SRL16E
u_srl_fifo(
.Q ( m_payload[i] ) ,
.A0 ( fifo_addr[0] ) ,
.A1 ( fifo_addr[1] ) ,
.A2 ( fifo_addr[2] ) ,
.A3 ( fifo_addr[3] ) ,
.CE ( push ) ,
.CLK ( aclk ) ,
.D ( s_payload[i] )
);
end
endgenerate
endmodule
`default_nettype wire
// (c) Copyright 2012 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// axi to vector
// A generic module to merge all axi signals into one signal called payload.
// This is strictly wires, so no clk, reset, aclken, valid/ready are required.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_vector2axi #
(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter integer C_AXI_PROTOCOL = 0,
parameter integer C_AXI_ID_WIDTH = 4,
parameter integer C_AXI_ADDR_WIDTH = 32,
parameter integer C_AXI_DATA_WIDTH = 32,
parameter integer C_AXI_SUPPORTS_USER_SIGNALS = 0,
parameter integer C_AXI_SUPPORTS_REGION_SIGNALS = 0,
parameter integer C_AXI_AWUSER_WIDTH = 1,
parameter integer C_AXI_WUSER_WIDTH = 1,
parameter integer C_AXI_BUSER_WIDTH = 1,
parameter integer C_AXI_ARUSER_WIDTH = 1,
parameter integer C_AXI_RUSER_WIDTH = 1,
parameter integer C_AWPAYLOAD_WIDTH = 61,
parameter integer C_WPAYLOAD_WIDTH = 73,
parameter integer C_BPAYLOAD_WIDTH = 6,
parameter integer C_ARPAYLOAD_WIDTH = 61,
parameter integer C_RPAYLOAD_WIDTH = 69
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
// Slave Interface Write Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_awid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_awlen,
output wire [3-1:0] m_axi_awsize,
output wire [2-1:0] m_axi_awburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_awlock,
output wire [4-1:0] m_axi_awcache,
output wire [3-1:0] m_axi_awprot,
output wire [4-1:0] m_axi_awregion,
output wire [4-1:0] m_axi_awqos,
output wire [C_AXI_AWUSER_WIDTH-1:0] m_axi_awuser,
// Slave Interface Write Data Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_wid,
output wire [C_AXI_DATA_WIDTH-1:0] m_axi_wdata,
output wire [C_AXI_DATA_WIDTH/8-1:0] m_axi_wstrb,
output wire m_axi_wlast,
output wire [C_AXI_WUSER_WIDTH-1:0] m_axi_wuser,
// Slave Interface Write Response Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_bid,
input wire [2-1:0] m_axi_bresp,
input wire [C_AXI_BUSER_WIDTH-1:0] m_axi_buser,
// Slave Interface Read Address Ports
output wire [C_AXI_ID_WIDTH-1:0] m_axi_arid,
output wire [C_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
output wire [((C_AXI_PROTOCOL == 1) ? 4 : 8)-1:0] m_axi_arlen,
output wire [3-1:0] m_axi_arsize,
output wire [2-1:0] m_axi_arburst,
output wire [((C_AXI_PROTOCOL == 1) ? 2 : 1)-1:0] m_axi_arlock,
output wire [4-1:0] m_axi_arcache,
output wire [3-1:0] m_axi_arprot,
output wire [4-1:0] m_axi_arregion,
output wire [4-1:0] m_axi_arqos,
output wire [C_AXI_ARUSER_WIDTH-1:0] m_axi_aruser,
// Slave Interface Read Data Ports
input wire [C_AXI_ID_WIDTH-1:0] m_axi_rid,
input wire [C_AXI_DATA_WIDTH-1:0] m_axi_rdata,
input wire [2-1:0] m_axi_rresp,
input wire m_axi_rlast,
input wire [C_AXI_RUSER_WIDTH-1:0] m_axi_ruser,
// payloads
input wire [C_AWPAYLOAD_WIDTH-1:0] m_awpayload,
input wire [C_WPAYLOAD_WIDTH-1:0] m_wpayload,
output wire [C_BPAYLOAD_WIDTH-1:0] m_bpayload,
input wire [C_ARPAYLOAD_WIDTH-1:0] m_arpayload,
output wire [C_RPAYLOAD_WIDTH-1:0] m_rpayload
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
`include "axi_infrastructure_v1_1_0.vh"
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
// AXI4, AXI4LITE, AXI3 packing
assign m_axi_awaddr = m_awpayload[G_AXI_AWADDR_INDEX+:G_AXI_AWADDR_WIDTH];
assign m_axi_awprot = m_awpayload[G_AXI_AWPROT_INDEX+:G_AXI_AWPROT_WIDTH];
assign m_axi_wdata = m_wpayload[G_AXI_WDATA_INDEX+:G_AXI_WDATA_WIDTH];
assign m_axi_wstrb = m_wpayload[G_AXI_WSTRB_INDEX+:G_AXI_WSTRB_WIDTH];
assign m_bpayload[G_AXI_BRESP_INDEX+:G_AXI_BRESP_WIDTH] = m_axi_bresp;
assign m_axi_araddr = m_arpayload[G_AXI_ARADDR_INDEX+:G_AXI_ARADDR_WIDTH];
assign m_axi_arprot = m_arpayload[G_AXI_ARPROT_INDEX+:G_AXI_ARPROT_WIDTH];
assign m_rpayload[G_AXI_RDATA_INDEX+:G_AXI_RDATA_WIDTH] = m_axi_rdata;
assign m_rpayload[G_AXI_RRESP_INDEX+:G_AXI_RRESP_WIDTH] = m_axi_rresp;
generate
if (C_AXI_PROTOCOL == 0 || C_AXI_PROTOCOL == 1) begin : gen_axi4_or_axi3_packing
assign m_axi_awsize = m_awpayload[G_AXI_AWSIZE_INDEX+:G_AXI_AWSIZE_WIDTH] ;
assign m_axi_awburst = m_awpayload[G_AXI_AWBURST_INDEX+:G_AXI_AWBURST_WIDTH];
assign m_axi_awcache = m_awpayload[G_AXI_AWCACHE_INDEX+:G_AXI_AWCACHE_WIDTH];
assign m_axi_awlen = m_awpayload[G_AXI_AWLEN_INDEX+:G_AXI_AWLEN_WIDTH] ;
assign m_axi_awlock = m_awpayload[G_AXI_AWLOCK_INDEX+:G_AXI_AWLOCK_WIDTH] ;
assign m_axi_awid = m_awpayload[G_AXI_AWID_INDEX+:G_AXI_AWID_WIDTH] ;
assign m_axi_awqos = m_awpayload[G_AXI_AWQOS_INDEX+:G_AXI_AWQOS_WIDTH] ;
assign m_axi_wlast = m_wpayload[G_AXI_WLAST_INDEX+:G_AXI_WLAST_WIDTH] ;
if (C_AXI_PROTOCOL == 1) begin : gen_axi3_wid_packing
assign m_axi_wid = m_wpayload[G_AXI_WID_INDEX+:G_AXI_WID_WIDTH] ;
end
else begin : gen_no_axi3_wid_packing
assign m_axi_wid = 1'b0;
end
assign m_bpayload[G_AXI_BID_INDEX+:G_AXI_BID_WIDTH] = m_axi_bid;
assign m_axi_arsize = m_arpayload[G_AXI_ARSIZE_INDEX+:G_AXI_ARSIZE_WIDTH] ;
assign m_axi_arburst = m_arpayload[G_AXI_ARBURST_INDEX+:G_AXI_ARBURST_WIDTH];
assign m_axi_arcache = m_arpayload[G_AXI_ARCACHE_INDEX+:G_AXI_ARCACHE_WIDTH];
assign m_axi_arlen = m_arpayload[G_AXI_ARLEN_INDEX+:G_AXI_ARLEN_WIDTH] ;
assign m_axi_arlock = m_arpayload[G_AXI_ARLOCK_INDEX+:G_AXI_ARLOCK_WIDTH] ;
assign m_axi_arid = m_arpayload[G_AXI_ARID_INDEX+:G_AXI_ARID_WIDTH] ;
assign m_axi_arqos = m_arpayload[G_AXI_ARQOS_INDEX+:G_AXI_ARQOS_WIDTH] ;
assign m_rpayload[G_AXI_RLAST_INDEX+:G_AXI_RLAST_WIDTH] = m_axi_rlast;
assign m_rpayload[G_AXI_RID_INDEX+:G_AXI_RID_WIDTH] = m_axi_rid ;
if (C_AXI_SUPPORTS_REGION_SIGNALS == 1 && G_AXI_AWREGION_WIDTH > 0) begin : gen_region_signals
assign m_axi_awregion = m_awpayload[G_AXI_AWREGION_INDEX+:G_AXI_AWREGION_WIDTH];
assign m_axi_arregion = m_arpayload[G_AXI_ARREGION_INDEX+:G_AXI_ARREGION_WIDTH];
end
else begin : gen_no_region_signals
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
end
if (C_AXI_SUPPORTS_USER_SIGNALS == 1 && C_AXI_PROTOCOL != 2) begin : gen_user_signals
assign m_axi_awuser = m_awpayload[G_AXI_AWUSER_INDEX+:G_AXI_AWUSER_WIDTH];
assign m_axi_wuser = m_wpayload[G_AXI_WUSER_INDEX+:G_AXI_WUSER_WIDTH] ;
assign m_bpayload[G_AXI_BUSER_INDEX+:G_AXI_BUSER_WIDTH] = m_axi_buser ;
assign m_axi_aruser = m_arpayload[G_AXI_ARUSER_INDEX+:G_AXI_ARUSER_WIDTH];
assign m_rpayload[G_AXI_RUSER_INDEX+:G_AXI_RUSER_WIDTH] = m_axi_ruser ;
end
else begin : gen_no_user_signals
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
end
else begin : gen_axi4lite_packing
assign m_axi_awsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_awburst = 'b0;
assign m_axi_awcache = 'b0;
assign m_axi_awlen = 'b0;
assign m_axi_awlock = 'b0;
assign m_axi_awid = 'b0;
assign m_axi_awqos = 'b0;
assign m_axi_wlast = 1'b1;
assign m_axi_wid = 'b0;
assign m_axi_arsize = (C_AXI_DATA_WIDTH == 32) ? 3'd2 : 3'd3;
assign m_axi_arburst = 'b0;
assign m_axi_arcache = 'b0;
assign m_axi_arlen = 'b0;
assign m_axi_arlock = 'b0;
assign m_axi_arid = 'b0;
assign m_axi_arqos = 'b0;
assign m_axi_awregion = 'b0;
assign m_axi_arregion = 'b0;
assign m_axi_awuser = 'b0;
assign m_axi_wuser = 'b0;
assign m_axi_aruser = 'b0;
end
endgenerate
endmodule
`default_nettype wire
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 3;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] B,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 3;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {B, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = B;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized AND with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_and #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire S,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign COUT = CIN & S;
end else begin : USE_FPGA
MUXCY and_inst
(
.O (COUT),
.CI (CIN),
.DI (1'b0),
.S (S)
);
end
endgenerate
endmodule
|
// (c) Copyright 2012-2013 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
// Description: SRL based FIFO for AXIS/AXI Channels.
//--------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axic_srl_fifo #(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter C_FAMILY = "virtex7",
parameter integer C_PAYLOAD_WIDTH = 1,
parameter integer C_FIFO_DEPTH = 16 // Range: 4-16.
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
input wire aclk, // Clock
input wire aresetn, // Reset
input wire [C_PAYLOAD_WIDTH-1:0] s_payload, // Input data
input wire s_valid, // Input data valid
output reg s_ready, // Input data ready
output wire [C_PAYLOAD_WIDTH-1:0] m_payload, // Output data
output reg m_valid, // Output data valid
input wire m_ready // Output data ready
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
// ceiling logb2
function integer f_clogb2 (input integer size);
integer s;
begin
s = size;
s = s - 1;
for (f_clogb2=1; s>1; f_clogb2=f_clogb2+1)
s = s >> 1;
end
endfunction // clogb2
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
localparam integer LP_LOG_FIFO_DEPTH = f_clogb2(C_FIFO_DEPTH);
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
reg [LP_LOG_FIFO_DEPTH-1:0] fifo_index;
wire [4-1:0] fifo_addr;
wire push;
wire pop ;
reg areset_r1;
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
always @(posedge aclk) begin
areset_r1 <= ~aresetn;
end
always @(posedge aclk) begin
if (~aresetn) begin
fifo_index <= {LP_LOG_FIFO_DEPTH{1'b1}};
end
else begin
fifo_index <= push & ~pop ? fifo_index + 1'b1 :
~push & pop ? fifo_index - 1'b1 :
fifo_index;
end
end
assign push = s_valid & s_ready;
always @(posedge aclk) begin
if (~aresetn) begin
s_ready <= 1'b0;
end
else begin
s_ready <= areset_r1 ? 1'b1 :
push & ~pop && (fifo_index == (C_FIFO_DEPTH - 2'd2)) ? 1'b0 :
~push & pop ? 1'b1 :
s_ready;
end
end
assign pop = m_valid & m_ready;
always @(posedge aclk) begin
if (~aresetn) begin
m_valid <= 1'b0;
end
else begin
m_valid <= ~push & pop && (fifo_index == {LP_LOG_FIFO_DEPTH{1'b0}}) ? 1'b0 :
push & ~pop ? 1'b1 :
m_valid;
end
end
generate
if (LP_LOG_FIFO_DEPTH < 4) begin : gen_pad_fifo_addr
assign fifo_addr[0+:LP_LOG_FIFO_DEPTH] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
assign fifo_addr[LP_LOG_FIFO_DEPTH+:(4-LP_LOG_FIFO_DEPTH)] = {4-LP_LOG_FIFO_DEPTH{1'b0}};
end
else begin : gen_fifo_addr
assign fifo_addr[LP_LOG_FIFO_DEPTH-1:0] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
end
endgenerate
generate
genvar i;
for (i = 0; i < C_PAYLOAD_WIDTH; i = i + 1) begin : gen_data_bit
SRL16E
u_srl_fifo(
.Q ( m_payload[i] ) ,
.A0 ( fifo_addr[0] ) ,
.A1 ( fifo_addr[1] ) ,
.A2 ( fifo_addr[2] ) ,
.A3 ( fifo_addr[3] ) ,
.CE ( push ) ,
.CLK ( aclk ) ,
.D ( s_payload[i] )
);
end
endgenerate
endmodule
`default_nettype wire
|
// (c) Copyright 2012-2013 Xilinx, Inc. All rights reserved.
//
// This file contains confidential and proprietary information
// of Xilinx, Inc. and is protected under U.S. and
// international copyright and other intellectual property
// laws.
//
// DISCLAIMER
// This disclaimer is not a license and does not grant any
// rights to the materials distributed herewith. Except as
// otherwise provided in a valid license issued to you by
// Xilinx, and to the maximum extent permitted by applicable
// law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// (2) Xilinx shall not be liable (whether in contract or tort,
// including negligence, or under any other theory of
// liability) for any loss or damage of any kind or nature
// related to, arising under or in connection with these
// materials, including for any direct, or any indirect,
// special, incidental, or consequential loss or damage
// (including loss of data, profits, goodwill, or any type of
// loss or damage suffered as a result of any action brought
// by a third party) even if such damage or loss was
// reasonably foreseeable or Xilinx had been advised of the
// possibility of the same.
//
// CRITICAL APPLICATIONS
// Xilinx products are not designed or intended to be fail-
// safe, or for use in any application requiring fail-safe
// performance, such as life-support or safety devices or
// systems, Class III medical devices, nuclear facilities,
// applications related to the deployment of airbags, or any
// other applications that could lead to death, personal
// injury, or severe property or environmental damage
// (individually and collectively, "Critical
// Applications"). Customer assumes the sole risk and
// liability of any use of Xilinx products in Critical
// Applications, subject only to applicable laws and
// regulations governing limitations on product liability.
//
// THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
// Description: SRL based FIFO for AXIS/AXI Channels.
//--------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module axi_infrastructure_v1_1_0_axic_srl_fifo #(
///////////////////////////////////////////////////////////////////////////////
// Parameter Definitions
///////////////////////////////////////////////////////////////////////////////
parameter C_FAMILY = "virtex7",
parameter integer C_PAYLOAD_WIDTH = 1,
parameter integer C_FIFO_DEPTH = 16 // Range: 4-16.
)
(
///////////////////////////////////////////////////////////////////////////////
// Port Declarations
///////////////////////////////////////////////////////////////////////////////
input wire aclk, // Clock
input wire aresetn, // Reset
input wire [C_PAYLOAD_WIDTH-1:0] s_payload, // Input data
input wire s_valid, // Input data valid
output reg s_ready, // Input data ready
output wire [C_PAYLOAD_WIDTH-1:0] m_payload, // Output data
output reg m_valid, // Output data valid
input wire m_ready // Output data ready
);
////////////////////////////////////////////////////////////////////////////////
// Functions
////////////////////////////////////////////////////////////////////////////////
// ceiling logb2
function integer f_clogb2 (input integer size);
integer s;
begin
s = size;
s = s - 1;
for (f_clogb2=1; s>1; f_clogb2=f_clogb2+1)
s = s >> 1;
end
endfunction // clogb2
////////////////////////////////////////////////////////////////////////////////
// Local parameters
////////////////////////////////////////////////////////////////////////////////
localparam integer LP_LOG_FIFO_DEPTH = f_clogb2(C_FIFO_DEPTH);
////////////////////////////////////////////////////////////////////////////////
// Wires/Reg declarations
////////////////////////////////////////////////////////////////////////////////
reg [LP_LOG_FIFO_DEPTH-1:0] fifo_index;
wire [4-1:0] fifo_addr;
wire push;
wire pop ;
reg areset_r1;
////////////////////////////////////////////////////////////////////////////////
// BEGIN RTL
////////////////////////////////////////////////////////////////////////////////
always @(posedge aclk) begin
areset_r1 <= ~aresetn;
end
always @(posedge aclk) begin
if (~aresetn) begin
fifo_index <= {LP_LOG_FIFO_DEPTH{1'b1}};
end
else begin
fifo_index <= push & ~pop ? fifo_index + 1'b1 :
~push & pop ? fifo_index - 1'b1 :
fifo_index;
end
end
assign push = s_valid & s_ready;
always @(posedge aclk) begin
if (~aresetn) begin
s_ready <= 1'b0;
end
else begin
s_ready <= areset_r1 ? 1'b1 :
push & ~pop && (fifo_index == (C_FIFO_DEPTH - 2'd2)) ? 1'b0 :
~push & pop ? 1'b1 :
s_ready;
end
end
assign pop = m_valid & m_ready;
always @(posedge aclk) begin
if (~aresetn) begin
m_valid <= 1'b0;
end
else begin
m_valid <= ~push & pop && (fifo_index == {LP_LOG_FIFO_DEPTH{1'b0}}) ? 1'b0 :
push & ~pop ? 1'b1 :
m_valid;
end
end
generate
if (LP_LOG_FIFO_DEPTH < 4) begin : gen_pad_fifo_addr
assign fifo_addr[0+:LP_LOG_FIFO_DEPTH] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
assign fifo_addr[LP_LOG_FIFO_DEPTH+:(4-LP_LOG_FIFO_DEPTH)] = {4-LP_LOG_FIFO_DEPTH{1'b0}};
end
else begin : gen_fifo_addr
assign fifo_addr[LP_LOG_FIFO_DEPTH-1:0] = fifo_index[LP_LOG_FIFO_DEPTH-1:0];
end
endgenerate
generate
genvar i;
for (i = 0; i < C_PAYLOAD_WIDTH; i = i + 1) begin : gen_data_bit
SRL16E
u_srl_fifo(
.Q ( m_payload[i] ) ,
.A0 ( fifo_addr[0] ) ,
.A1 ( fifo_addr[1] ) ,
.A2 ( fifo_addr[2] ) ,
.A3 ( fifo_addr[3] ) ,
.CE ( push ) ,
.CLK ( aclk ) ,
.D ( s_payload[i] )
);
end
endgenerate
endmodule
`default_nettype wire
|
module reset_and_status
#(
parameter PIO_WIDTH=32
)
(
input clk,
input resetn,
output reg [PIO_WIDTH-1 : 0 ] pio_in,
input [PIO_WIDTH-1 : 0 ] pio_out,
input lock_kernel_pll,
input fixedclk_locked, // pcie fixedclk lock
input mem0_local_cal_success,
input mem0_local_cal_fail,
input mem0_local_init_done,
input mem1_local_cal_success,
input mem1_local_cal_fail,
input mem1_local_init_done,
output reg [1:0] mem_organization,
output [1:0] mem_organization_export,
output pll_reset,
output reg sw_reset_n_out
);
reg [1:0] pio_out_ddr_mode;
reg pio_out_pll_reset;
reg pio_out_sw_reset;
reg [9:0] reset_count;
always@(posedge clk or negedge resetn)
if (!resetn)
reset_count <= 10'b0;
else if (pio_out_sw_reset)
reset_count <= 10'b0;
else if (!reset_count[9])
reset_count <= reset_count + 2'b01;
// false paths set for pio_out_*
(* altera_attribute = "-name SDC_STATEMENT \"set_false_path -to [get_registers *pio_out_*]\"" *)
always@(posedge clk)
begin
pio_out_ddr_mode = pio_out[9:8];
pio_out_pll_reset = pio_out[30];
pio_out_sw_reset = pio_out[31];
end
// false paths for pio_in - these are asynchronous
(* altera_attribute = "-name SDC_STATEMENT \"set_false_path -to [get_registers *pio_in*]\"" *)
always@(posedge clk)
begin
pio_in = {
lock_kernel_pll,
fixedclk_locked,
1'b0,
1'b0,
mem1_local_cal_fail,
mem0_local_cal_fail,
mem1_local_cal_success,
mem1_local_init_done,
mem0_local_cal_success,
mem0_local_init_done};
end
(* altera_attribute = "-name SDC_STATEMENT \"set_false_path -from [get_registers *mem_organization*]\"" *)
always@(posedge clk)
mem_organization = pio_out_ddr_mode;
assign mem_organization_export = mem_organization;
assign pll_reset = pio_out_pll_reset;
// Export sw kernel reset out of iface to connect to kernel
always@(posedge clk)
sw_reset_n_out = !(!reset_count[9] && (reset_count[8:0] != 0));
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized Mux from 2:1 upto 16:1.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_mux #
(
parameter C_FAMILY = "rtl",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_SEL_WIDTH = 4,
// Data width for comparator.
parameter integer C_DATA_WIDTH = 2
// Data width for comparator.
)
(
input wire [C_SEL_WIDTH-1:0] S,
input wire [(2**C_SEL_WIDTH)*C_DATA_WIDTH-1:0] A,
output wire [C_DATA_WIDTH-1:0] O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" || C_SEL_WIDTH < 3 ) begin : USE_RTL
assign O = A[(S)*C_DATA_WIDTH +: C_DATA_WIDTH];
end else begin : USE_FPGA
wire [C_DATA_WIDTH-1:0] C;
wire [C_DATA_WIDTH-1:0] D;
// Lower half recursively.
generic_baseblocks_v2_1_0_mux #
(
.C_FAMILY (C_FAMILY),
.C_SEL_WIDTH (C_SEL_WIDTH-1),
.C_DATA_WIDTH (C_DATA_WIDTH)
) mux_c_inst
(
.S (S[C_SEL_WIDTH-2:0]),
.A (A[(2**(C_SEL_WIDTH-1))*C_DATA_WIDTH-1 : 0]),
.O (C)
);
// Upper half recursively.
generic_baseblocks_v2_1_0_mux #
(
.C_FAMILY (C_FAMILY),
.C_SEL_WIDTH (C_SEL_WIDTH-1),
.C_DATA_WIDTH (C_DATA_WIDTH)
) mux_d_inst
(
.S (S[C_SEL_WIDTH-2:0]),
.A (A[(2**C_SEL_WIDTH)*C_DATA_WIDTH-1 : (2**(C_SEL_WIDTH-1))*C_DATA_WIDTH]),
.O (D)
);
// Generate instantiated generic_baseblocks_v2_1_0_mux components as required.
for (bit_cnt = 0; bit_cnt < C_DATA_WIDTH ; bit_cnt = bit_cnt + 1) begin : NUM
if ( C_SEL_WIDTH == 4 ) begin : USE_F8
MUXF8 muxf8_inst
(
.I0 (C[bit_cnt]),
.I1 (D[bit_cnt]),
.S (S[C_SEL_WIDTH-1]),
.O (O[bit_cnt])
);
end else if ( C_SEL_WIDTH == 3 ) begin : USE_F7
MUXF7 muxf7_inst
(
.I0 (C[bit_cnt]),
.I1 (D[bit_cnt]),
.S (S[C_SEL_WIDTH-1]),
.O (O[bit_cnt])
);
end // C_SEL_WIDTH
end // end for bit_cnt
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is used to breakout the 256 bit streaming ports to and from the write master.
The information sent through the streaming ports is a bundle of wires and buses so it's
fairly inconvenient to constantly refer to them by their position amungst the 256 lines.
This block also provides a layer of abstraction since the descriptor buffers block has
no clue what format the descriptors are in except that the 'go' bit is written to. This
means that using this block you could move descriptor information around without affecting
the top level dispatcher logic.
1.0 06/29/2009 - First version of this block of wires
1.1 02/15/2011 - Added read_early_done_enable to the wire breakout
1.2 11/15/2012 - Added in an additional 32 bits of address for extended descriptors
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module read_signal_breakout (
read_command_data_in, // descriptor from the read FIFO
read_command_data_out, // reformated descriptor to the read master
// breakout of command information
read_address,
read_length,
read_transmit_channel,
read_generate_sop,
read_generate_eop,
read_park,
read_transfer_complete_IRQ_mask,
read_burst_count, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_stride, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_sequence_number, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_transmit_error,
read_early_done_enable,
// additional control information that needs to go out asynchronously with the command data
read_stop,
read_sw_reset
);
parameter DATA_WIDTH = 256; // 256 bits when enhanced settings are enabled otherwise 128 bits
input [DATA_WIDTH-1:0] read_command_data_in;
output wire [255:0] read_command_data_out;
output wire [63:0] read_address;
output wire [31:0] read_length;
output wire [7:0] read_transmit_channel;
output wire read_generate_sop;
output wire read_generate_eop;
output wire read_park;
output wire read_transfer_complete_IRQ_mask;
output wire [7:0] read_burst_count;
output wire [15:0] read_stride;
output wire [15:0] read_sequence_number;
output wire [7:0] read_transmit_error;
output wire read_early_done_enable;
input read_stop;
input read_sw_reset;
assign read_address[31:0] = read_command_data_in[31:0];
assign read_length = read_command_data_in[95:64];
generate
if (DATA_WIDTH == 256)
begin
assign read_early_done_enable = read_command_data_in[248];
assign read_transmit_error = read_command_data_in[247:240];
assign read_transmit_channel = read_command_data_in[231:224];
assign read_generate_sop = read_command_data_in[232];
assign read_generate_eop = read_command_data_in[233];
assign read_park = read_command_data_in[234];
assign read_transfer_complete_IRQ_mask = read_command_data_in[238];
assign read_burst_count = read_command_data_in[119:112];
assign read_stride = read_command_data_in[143:128];
assign read_sequence_number = read_command_data_in[111:96];
assign read_address[63:32] = read_command_data_in[191:160];
end
else
begin
assign read_early_done_enable = read_command_data_in[120];
assign read_transmit_error = read_command_data_in[119:112];
assign read_transmit_channel = read_command_data_in[103:96];
assign read_generate_sop = read_command_data_in[104];
assign read_generate_eop = read_command_data_in[105];
assign read_park = read_command_data_in[106];
assign read_transfer_complete_IRQ_mask = read_command_data_in[110];
assign read_burst_count = 8'h00;
assign read_stride = 16'h0000;
assign read_sequence_number = 16'h0000;
assign read_address[63:32] = 32'h00000000;
end
endgenerate
// big concat statement to glue all the signals back together to go out to the read master (MSBs to LSBs)
assign read_command_data_out = {{115{1'b0}}, // zero pad the upper 115 bits
read_address[63:32],
read_early_done_enable,
read_transmit_error,
read_stride,
read_burst_count,
read_sw_reset,
read_stop,
read_generate_eop,
read_generate_sop,
read_transmit_channel,
read_length,
read_address[31:0]};
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is used to breakout the 256 bit streaming ports to and from the write master.
The information sent through the streaming ports is a bundle of wires and buses so it's
fairly inconvenient to constantly refer to them by their position amungst the 256 lines.
This block also provides a layer of abstraction since the descriptor buffers block has
no clue what format the descriptors are in except that the 'go' bit is written to. This
means that using this block you could move descriptor information around without affecting
the top level dispatcher logic.
1.0 06/29/2009 - First version of this block of wires
1.1 02/15/2011 - Added read_early_done_enable to the wire breakout
1.2 11/15/2012 - Added in an additional 32 bits of address for extended descriptors
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module read_signal_breakout (
read_command_data_in, // descriptor from the read FIFO
read_command_data_out, // reformated descriptor to the read master
// breakout of command information
read_address,
read_length,
read_transmit_channel,
read_generate_sop,
read_generate_eop,
read_park,
read_transfer_complete_IRQ_mask,
read_burst_count, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_stride, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_sequence_number, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
read_transmit_error,
read_early_done_enable,
// additional control information that needs to go out asynchronously with the command data
read_stop,
read_sw_reset
);
parameter DATA_WIDTH = 256; // 256 bits when enhanced settings are enabled otherwise 128 bits
input [DATA_WIDTH-1:0] read_command_data_in;
output wire [255:0] read_command_data_out;
output wire [63:0] read_address;
output wire [31:0] read_length;
output wire [7:0] read_transmit_channel;
output wire read_generate_sop;
output wire read_generate_eop;
output wire read_park;
output wire read_transfer_complete_IRQ_mask;
output wire [7:0] read_burst_count;
output wire [15:0] read_stride;
output wire [15:0] read_sequence_number;
output wire [7:0] read_transmit_error;
output wire read_early_done_enable;
input read_stop;
input read_sw_reset;
assign read_address[31:0] = read_command_data_in[31:0];
assign read_length = read_command_data_in[95:64];
generate
if (DATA_WIDTH == 256)
begin
assign read_early_done_enable = read_command_data_in[248];
assign read_transmit_error = read_command_data_in[247:240];
assign read_transmit_channel = read_command_data_in[231:224];
assign read_generate_sop = read_command_data_in[232];
assign read_generate_eop = read_command_data_in[233];
assign read_park = read_command_data_in[234];
assign read_transfer_complete_IRQ_mask = read_command_data_in[238];
assign read_burst_count = read_command_data_in[119:112];
assign read_stride = read_command_data_in[143:128];
assign read_sequence_number = read_command_data_in[111:96];
assign read_address[63:32] = read_command_data_in[191:160];
end
else
begin
assign read_early_done_enable = read_command_data_in[120];
assign read_transmit_error = read_command_data_in[119:112];
assign read_transmit_channel = read_command_data_in[103:96];
assign read_generate_sop = read_command_data_in[104];
assign read_generate_eop = read_command_data_in[105];
assign read_park = read_command_data_in[106];
assign read_transfer_complete_IRQ_mask = read_command_data_in[110];
assign read_burst_count = 8'h00;
assign read_stride = 16'h0000;
assign read_sequence_number = 16'h0000;
assign read_address[63:32] = 32'h00000000;
end
endgenerate
// big concat statement to glue all the signals back together to go out to the read master (MSBs to LSBs)
assign read_command_data_out = {{115{1'b0}}, // zero pad the upper 115 bits
read_address[63:32],
read_early_done_enable,
read_transmit_error,
read_stride,
read_burst_count,
read_sw_reset,
read_stop,
read_generate_eop,
read_generate_sop,
read_transmit_channel,
read_length,
read_address[31:0]};
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This block is responsible for communicating with the host processor/
descriptor prefetching master block. It uses FIFOs to buffer descriptors
to keep the read and write masters operating without intervention from a
host processor. This block is comprised of three main blocks:
1) Descriptor buffer
2) CSR
3) Response
The descriptor buffer recieves descriptors from a host/prefetcher and
registers the incoming byte lanes. When the descriptor 'go' bit has been
written, the descriptor is committed to the read/write descriptor buffers.
From there the descriptors are exposed to the read and write masters without
intervention from the host. The descriptor port is either 128 or 256 bits
wide depending on whether or not the enhanced features setting has been enabled.
Since the port is write only minimial logic will be created in the fabric
to adapt the byte enables for narrow masters connecting to this port. This
port contains a single address so address bits are exposed to the fabric.
The CSR (control-status register) block is used to provide information
back to the host as well as allow the SGDMA to be controlled on a
non-descriptor basis. The host driver should be written to mostly interact
with this port as interrupts and status information is accessible from this
block.
The optional response block is used to feed information on a per descriptor
basis back to the host or prefetching descriptor master. In most cases the
port will be used for sharing infomation about ST->MM transfers.
Communication between this block and the masters is performed using pairs
of Avalon-ST port connections. When the SGDMA is setup for MM->ST then the
write master port connections are removed and visa vera for ST->MM and the
read master. For more detailed information refer to "SGDMA_dispatcher_ug.pdf"
for more details.
Author: JCJB
Date: 08/13/2010
1.0 - Initial release
1.1 - Changed the stopped and resetting logic to correctly reflect the state
of the hardware (this block and the masters).
1.2 - Added stop descriptors logic
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module dispatcher (
clk,
reset,
// 128/256 bit write only port for feeding the dispatcher descriptors, no address since it's only one word wide, blocking when too many descriptors are buffered
descriptor_writedata,
descriptor_byteenable,
descriptor_write,
descriptor_waitrequest,
// control and status port, 32 bits wide with a read latency of 2 and non-blocking
csr_writedata,
csr_byteenable,
csr_write,
csr_readdata,
csr_read,
csr_address, // 4 addresses when ENHANCED_FEATURES is off (zero) otherwise 8 addresses are available
csr_irq, // only available if the response port is not an ST source (in that case the SGDMA pre-fetching block will issue interrupts)
// response slave port (when "RESPONSE_PORT" is set to 0), 32 bits wide, read only, and a read latency of 3 cycles
mm_response_readdata,
mm_response_read,
mm_response_address, // only two addresses
mm_response_byteenable, // last byte read pops the response FIFO
mm_response_waitrequest,
// response source port (when "RESPONSE_PORT" is set to 1),
src_response_data,
src_response_valid,
src_response_ready,
// write master source port (sends commands to write master)
src_write_master_data,
src_write_master_valid,
src_write_master_ready,
// write master sink port (recieves response from write master)
snk_write_master_data,
snk_write_master_valid,
snk_write_master_ready,
// read master source port (sends commands to read master)
src_read_master_data,
src_read_master_valid,
src_read_master_ready,
// read master sink port (recieves response from the read master)
snk_read_master_data,
snk_read_master_valid,
snk_read_master_ready
);
// y = log2(x)
function integer log2;
input integer x;
begin
x = x-1;
for(log2=0; x>0; log2=log2+1)
x = x>>1;
end
endfunction
parameter MODE = 0; // 0 for MM->MM, 1 for MM->ST, 2 for ST->MM
parameter RESPONSE_PORT = 0; // 0 for MM, 1 for ST, 2 for Disabled // normally disabled for all but ST->MM transfers
parameter DESCRIPTOR_FIFO_DEPTH = 128; // 16-1024 in powers of 2
parameter ENHANCED_FEATURES = 1; // 1 for Enabled, 0 for Disabled
parameter DESCRIPTOR_WIDTH = 256; // 256 when enhanced mode is on, 128 for off (needs to be controlled by callback since it influences data width)
parameter DESCRIPTOR_BYTEENABLE_WIDTH = 32; // 32 when enhanced mode is on, 16 for off (needs to be controlled by callback since it influences byte enable width)
parameter CSR_ADDRESS_WIDTH = 3; // always 3 bits wide
localparam RESPONSE_FIFO_DEPTH = 2 * DESCRIPTOR_FIFO_DEPTH;
localparam DESCRIPTOR_FIFO_DEPTH_LOG2 = log2(DESCRIPTOR_FIFO_DEPTH);
localparam RESPONSE_FIFO_DEPTH_LOG2 = log2(RESPONSE_FIFO_DEPTH);
input clk;
input reset;
input [DESCRIPTOR_WIDTH-1:0] descriptor_writedata;
input [DESCRIPTOR_BYTEENABLE_WIDTH-1:0] descriptor_byteenable;
input descriptor_write;
output wire descriptor_waitrequest;
input [31:0] csr_writedata;
input [3:0] csr_byteenable;
input csr_write;
output wire [31:0] csr_readdata;
input csr_read;
input [CSR_ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
// Used by a host with a master (like Nios II)
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address;
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
// Used by a pre-fetching master
output wire [255:0] src_response_data; // making wide in case we need to jam more signals in here, unnecessary bits will be grounded/optimized away
output wire src_response_valid;
input src_response_ready;
output wire [255:0] src_write_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_write_master_valid;
input src_write_master_ready;
input [255:0] snk_write_master_data; // might need to jam more bits in......
input snk_write_master_valid;
output wire snk_write_master_ready;
output wire [255:0] src_read_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_read_master_valid;
input src_read_master_ready;
input [255:0] snk_read_master_data; // might need to jam more bits in......
input snk_read_master_valid;
output wire snk_read_master_ready;
/* Internal wires and registers */
// descriptor information
wire read_command_valid;
wire read_command_ready;
wire [255:0] read_command_data;
wire read_command_empty;
wire read_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] read_command_used; // true used signal so extra MSB is included
wire write_command_valid;
wire write_command_ready;
wire [255:0] write_command_data;
wire write_command_empty;
wire write_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] write_command_used; // true used signal so extra MSB is included
wire [31:0] sequence_number;
wire transfer_complete_IRQ_mask;
wire early_termination_IRQ_mask;
wire [7:0] error_IRQ_mask;
wire descriptor_buffer_empty;
wire descriptor_buffer_full;
wire [15:0] write_descriptor_watermark;
wire [15:0] read_descriptor_watermark;
wire [31:0] descriptor_watermark;
wire busy;
wire done;
wire done_strobe;
wire stop_issuing_commands;
wire stop;
wire sw_reset;
wire stop_on_error;
wire stop_on_early_termination;
wire stop_descriptors;
wire reset_stalled;
wire master_stop_state;
wire descriptors_stop_state;
wire stop_state;
wire stopped_on_error;
wire stopped_on_early_termination;
wire response_fifo_full;
wire response_fifo_empty;
wire [15:0] response_watermark;
wire [7:0] response_error;
wire response_early_termination;
wire [31:0] response_actual_bytes_transferred;
/************************************************ REGISTERS *******************************************************/
/********************************************** END REGISTERS *****************************************************/
/******************************************* MODULE DECLERATIONS **************************************************/
// the descriptor buffers block instantiates the descriptor FIFOs and handshaking logic with the master command ports
descriptor_buffers the_descriptor_buffers (
.clk (clk),
.reset (reset),
.writedata (descriptor_writedata),
.write (descriptor_write),
.byteenable (descriptor_byteenable),
.waitrequest (descriptor_waitrequest),
.read_command_valid (read_command_valid),
.read_command_ready (read_command_ready),
.read_command_data (read_command_data),
.read_command_empty (read_command_empty),
.read_command_full (read_command_full),
.read_command_used (read_command_used),
.write_command_valid (write_command_valid),
.write_command_ready (write_command_ready),
.write_command_data (write_command_data),
.write_command_empty (write_command_empty),
.write_command_full (write_command_full),
.write_command_used (write_command_used),
.stop_issuing_commands (stop_issuing_commands),
.stop (stop),
.sw_reset (sw_reset),
.sequence_number (sequence_number),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask)
);
defparam the_descriptor_buffers.MODE = MODE;
defparam the_descriptor_buffers.DATA_WIDTH = DESCRIPTOR_WIDTH;
defparam the_descriptor_buffers.BYTE_ENABLE_WIDTH = DESCRIPTOR_WIDTH/8;
defparam the_descriptor_buffers.FIFO_DEPTH = DESCRIPTOR_FIFO_DEPTH;
defparam the_descriptor_buffers.FIFO_DEPTH_LOG2 = DESCRIPTOR_FIFO_DEPTH_LOG2;
// Control and status registers (and interrupts when a host connects directly to this block)
csr_block the_csr_block (
.clk (clk),
.reset (reset),
.csr_writedata (csr_writedata),
.csr_write (csr_write),
.csr_byteenable (csr_byteenable),
.csr_readdata (csr_readdata),
.csr_read (csr_read),
.csr_address (csr_address),
.csr_irq (csr_irq),
.done_strobe (done_strobe),
.busy (busy),
.descriptor_buffer_empty (descriptor_buffer_empty),
.descriptor_buffer_full (descriptor_buffer_full),
.stop_state (stop_state),
.stopped_on_error (stopped_on_error),
.stopped_on_early_termination (stopped_on_early_termination),
.stop_descriptors (stop_descriptors),
.reset_stalled (reset_stalled), // from the master(s) to tell the CSR block that it's still resetting
.stop (stop),
.sw_reset (sw_reset),
.stop_on_error (stop_on_error),
.stop_on_early_termination (stop_on_early_termination),
.sequence_number (sequence_number),
.descriptor_watermark (descriptor_watermark),
.response_watermark (response_watermark),
.response_buffer_empty (response_fifo_empty),
.response_buffer_full (response_fifo_full),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error (response_error),
.early_termination (response_early_termination)
);
defparam the_csr_block.ADDRESS_WIDTH = CSR_ADDRESS_WIDTH;
// Optional response port. When using a directly connected host it'll be a slave port and using a pre-fetching descriptor master it will be a streaming source port.
response_block the_response_block (
.clk (clk),
.reset (reset),
.mm_response_readdata (mm_response_readdata),
.mm_response_read (mm_response_read),
.mm_response_address (mm_response_address),
.mm_response_byteenable (mm_response_byteenable),
.mm_response_waitrequest (mm_response_waitrequest),
.src_response_data (src_response_data),
.src_response_valid (src_response_valid),
.src_response_ready (src_response_ready),
.sw_reset (sw_reset),
.response_watermark (response_watermark),
.response_fifo_full (response_fifo_full),
.response_fifo_empty (response_fifo_empty),
.done_strobe (done_strobe),
.actual_bytes_transferred (response_actual_bytes_transferred),
.error (response_error),
.early_termination (response_early_termination),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.descriptor_buffer_full (descriptor_buffer_full)
);
defparam the_response_block.RESPONSE_PORT = RESPONSE_PORT;
defparam the_response_block.FIFO_DEPTH = RESPONSE_FIFO_DEPTH;
defparam the_response_block.FIFO_DEPTH_LOG2 = RESPONSE_FIFO_DEPTH_LOG2;
/***************************************** END MODULE DECLERATIONS ************************************************/
/****************************************** COMBINATIONAL SIGNALS *************************************************/
// this block issues the commands so it's always ready for a response. The response FIFO fill level will be used to
// make sure additional ST-->MM commands are not issued if there is no room to catch the response.
assign snk_write_master_ready = 1'b1;
assign snk_read_master_ready = 1'b1;
assign done = (MODE == 1)? snk_read_master_ready : snk_write_master_ready;
assign done_strobe = (MODE == 1)? (snk_read_master_ready & snk_read_master_valid) : (snk_write_master_ready & snk_write_master_valid);
assign stop_issuing_commands = (response_fifo_full == 1) | (stop_descriptors == 1);
assign src_write_master_valid = write_command_valid;
assign write_command_ready = src_write_master_ready;
assign src_write_master_data = write_command_data;
assign src_read_master_valid = read_command_valid;
assign read_command_ready = src_read_master_ready;
assign src_read_master_data = read_command_data;
assign busy = (read_command_empty == 0) | (write_command_empty == 0) | // still have descriptors buffered in the FIFOs
(done == 0); // current transfer is still occuring
assign descriptor_buffer_empty = (read_command_empty == 1) & (write_command_empty == 1);
assign descriptor_buffer_full = (read_command_full == 1) | (write_command_full == 1);
assign write_descriptor_watermark = 16'h0000 | write_command_used; // zero padding the upper unused bits
assign read_descriptor_watermark = 16'h0000 | read_command_used; // zero padding the upper unused bits
assign descriptor_watermark = {write_descriptor_watermark, read_descriptor_watermark};
assign reset_stalled = snk_read_master_data[0] | snk_write_master_data[32];
assign master_stop_state = ((MODE == 0)? (snk_read_master_data[1] & snk_write_master_data[33]) :
(MODE == 1)? snk_read_master_data[1] : snk_write_master_data[33]);
assign descriptors_stop_state = (stop_descriptors == 1) & ((MODE == 0)? ((src_read_master_ready == 1) & (src_write_master_ready == 1)) :
(MODE == 1)? (src_read_master_ready == 1) : (src_write_master_ready == 1));
assign stop_state = (master_stop_state == 1) | (descriptors_stop_state == 1);
assign response_actual_bytes_transferred = snk_write_master_data[31:0];
assign response_error = snk_write_master_data[41:34];
assign response_early_termination = snk_write_master_data[42];
/**************************************** END COMBINATIONAL SIGNALS ***********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This block is responsible for communicating with the host processor/
descriptor prefetching master block. It uses FIFOs to buffer descriptors
to keep the read and write masters operating without intervention from a
host processor. This block is comprised of three main blocks:
1) Descriptor buffer
2) CSR
3) Response
The descriptor buffer recieves descriptors from a host/prefetcher and
registers the incoming byte lanes. When the descriptor 'go' bit has been
written, the descriptor is committed to the read/write descriptor buffers.
From there the descriptors are exposed to the read and write masters without
intervention from the host. The descriptor port is either 128 or 256 bits
wide depending on whether or not the enhanced features setting has been enabled.
Since the port is write only minimial logic will be created in the fabric
to adapt the byte enables for narrow masters connecting to this port. This
port contains a single address so address bits are exposed to the fabric.
The CSR (control-status register) block is used to provide information
back to the host as well as allow the SGDMA to be controlled on a
non-descriptor basis. The host driver should be written to mostly interact
with this port as interrupts and status information is accessible from this
block.
The optional response block is used to feed information on a per descriptor
basis back to the host or prefetching descriptor master. In most cases the
port will be used for sharing infomation about ST->MM transfers.
Communication between this block and the masters is performed using pairs
of Avalon-ST port connections. When the SGDMA is setup for MM->ST then the
write master port connections are removed and visa vera for ST->MM and the
read master. For more detailed information refer to "SGDMA_dispatcher_ug.pdf"
for more details.
Author: JCJB
Date: 08/13/2010
1.0 - Initial release
1.1 - Changed the stopped and resetting logic to correctly reflect the state
of the hardware (this block and the masters).
1.2 - Added stop descriptors logic
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module dispatcher (
clk,
reset,
// 128/256 bit write only port for feeding the dispatcher descriptors, no address since it's only one word wide, blocking when too many descriptors are buffered
descriptor_writedata,
descriptor_byteenable,
descriptor_write,
descriptor_waitrequest,
// control and status port, 32 bits wide with a read latency of 2 and non-blocking
csr_writedata,
csr_byteenable,
csr_write,
csr_readdata,
csr_read,
csr_address, // 4 addresses when ENHANCED_FEATURES is off (zero) otherwise 8 addresses are available
csr_irq, // only available if the response port is not an ST source (in that case the SGDMA pre-fetching block will issue interrupts)
// response slave port (when "RESPONSE_PORT" is set to 0), 32 bits wide, read only, and a read latency of 3 cycles
mm_response_readdata,
mm_response_read,
mm_response_address, // only two addresses
mm_response_byteenable, // last byte read pops the response FIFO
mm_response_waitrequest,
// response source port (when "RESPONSE_PORT" is set to 1),
src_response_data,
src_response_valid,
src_response_ready,
// write master source port (sends commands to write master)
src_write_master_data,
src_write_master_valid,
src_write_master_ready,
// write master sink port (recieves response from write master)
snk_write_master_data,
snk_write_master_valid,
snk_write_master_ready,
// read master source port (sends commands to read master)
src_read_master_data,
src_read_master_valid,
src_read_master_ready,
// read master sink port (recieves response from the read master)
snk_read_master_data,
snk_read_master_valid,
snk_read_master_ready
);
// y = log2(x)
function integer log2;
input integer x;
begin
x = x-1;
for(log2=0; x>0; log2=log2+1)
x = x>>1;
end
endfunction
parameter MODE = 0; // 0 for MM->MM, 1 for MM->ST, 2 for ST->MM
parameter RESPONSE_PORT = 0; // 0 for MM, 1 for ST, 2 for Disabled // normally disabled for all but ST->MM transfers
parameter DESCRIPTOR_FIFO_DEPTH = 128; // 16-1024 in powers of 2
parameter ENHANCED_FEATURES = 1; // 1 for Enabled, 0 for Disabled
parameter DESCRIPTOR_WIDTH = 256; // 256 when enhanced mode is on, 128 for off (needs to be controlled by callback since it influences data width)
parameter DESCRIPTOR_BYTEENABLE_WIDTH = 32; // 32 when enhanced mode is on, 16 for off (needs to be controlled by callback since it influences byte enable width)
parameter CSR_ADDRESS_WIDTH = 3; // always 3 bits wide
localparam RESPONSE_FIFO_DEPTH = 2 * DESCRIPTOR_FIFO_DEPTH;
localparam DESCRIPTOR_FIFO_DEPTH_LOG2 = log2(DESCRIPTOR_FIFO_DEPTH);
localparam RESPONSE_FIFO_DEPTH_LOG2 = log2(RESPONSE_FIFO_DEPTH);
input clk;
input reset;
input [DESCRIPTOR_WIDTH-1:0] descriptor_writedata;
input [DESCRIPTOR_BYTEENABLE_WIDTH-1:0] descriptor_byteenable;
input descriptor_write;
output wire descriptor_waitrequest;
input [31:0] csr_writedata;
input [3:0] csr_byteenable;
input csr_write;
output wire [31:0] csr_readdata;
input csr_read;
input [CSR_ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
// Used by a host with a master (like Nios II)
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address;
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
// Used by a pre-fetching master
output wire [255:0] src_response_data; // making wide in case we need to jam more signals in here, unnecessary bits will be grounded/optimized away
output wire src_response_valid;
input src_response_ready;
output wire [255:0] src_write_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_write_master_valid;
input src_write_master_ready;
input [255:0] snk_write_master_data; // might need to jam more bits in......
input snk_write_master_valid;
output wire snk_write_master_ready;
output wire [255:0] src_read_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_read_master_valid;
input src_read_master_ready;
input [255:0] snk_read_master_data; // might need to jam more bits in......
input snk_read_master_valid;
output wire snk_read_master_ready;
/* Internal wires and registers */
// descriptor information
wire read_command_valid;
wire read_command_ready;
wire [255:0] read_command_data;
wire read_command_empty;
wire read_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] read_command_used; // true used signal so extra MSB is included
wire write_command_valid;
wire write_command_ready;
wire [255:0] write_command_data;
wire write_command_empty;
wire write_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] write_command_used; // true used signal so extra MSB is included
wire [31:0] sequence_number;
wire transfer_complete_IRQ_mask;
wire early_termination_IRQ_mask;
wire [7:0] error_IRQ_mask;
wire descriptor_buffer_empty;
wire descriptor_buffer_full;
wire [15:0] write_descriptor_watermark;
wire [15:0] read_descriptor_watermark;
wire [31:0] descriptor_watermark;
wire busy;
wire done;
wire done_strobe;
wire stop_issuing_commands;
wire stop;
wire sw_reset;
wire stop_on_error;
wire stop_on_early_termination;
wire stop_descriptors;
wire reset_stalled;
wire master_stop_state;
wire descriptors_stop_state;
wire stop_state;
wire stopped_on_error;
wire stopped_on_early_termination;
wire response_fifo_full;
wire response_fifo_empty;
wire [15:0] response_watermark;
wire [7:0] response_error;
wire response_early_termination;
wire [31:0] response_actual_bytes_transferred;
/************************************************ REGISTERS *******************************************************/
/********************************************** END REGISTERS *****************************************************/
/******************************************* MODULE DECLERATIONS **************************************************/
// the descriptor buffers block instantiates the descriptor FIFOs and handshaking logic with the master command ports
descriptor_buffers the_descriptor_buffers (
.clk (clk),
.reset (reset),
.writedata (descriptor_writedata),
.write (descriptor_write),
.byteenable (descriptor_byteenable),
.waitrequest (descriptor_waitrequest),
.read_command_valid (read_command_valid),
.read_command_ready (read_command_ready),
.read_command_data (read_command_data),
.read_command_empty (read_command_empty),
.read_command_full (read_command_full),
.read_command_used (read_command_used),
.write_command_valid (write_command_valid),
.write_command_ready (write_command_ready),
.write_command_data (write_command_data),
.write_command_empty (write_command_empty),
.write_command_full (write_command_full),
.write_command_used (write_command_used),
.stop_issuing_commands (stop_issuing_commands),
.stop (stop),
.sw_reset (sw_reset),
.sequence_number (sequence_number),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask)
);
defparam the_descriptor_buffers.MODE = MODE;
defparam the_descriptor_buffers.DATA_WIDTH = DESCRIPTOR_WIDTH;
defparam the_descriptor_buffers.BYTE_ENABLE_WIDTH = DESCRIPTOR_WIDTH/8;
defparam the_descriptor_buffers.FIFO_DEPTH = DESCRIPTOR_FIFO_DEPTH;
defparam the_descriptor_buffers.FIFO_DEPTH_LOG2 = DESCRIPTOR_FIFO_DEPTH_LOG2;
// Control and status registers (and interrupts when a host connects directly to this block)
csr_block the_csr_block (
.clk (clk),
.reset (reset),
.csr_writedata (csr_writedata),
.csr_write (csr_write),
.csr_byteenable (csr_byteenable),
.csr_readdata (csr_readdata),
.csr_read (csr_read),
.csr_address (csr_address),
.csr_irq (csr_irq),
.done_strobe (done_strobe),
.busy (busy),
.descriptor_buffer_empty (descriptor_buffer_empty),
.descriptor_buffer_full (descriptor_buffer_full),
.stop_state (stop_state),
.stopped_on_error (stopped_on_error),
.stopped_on_early_termination (stopped_on_early_termination),
.stop_descriptors (stop_descriptors),
.reset_stalled (reset_stalled), // from the master(s) to tell the CSR block that it's still resetting
.stop (stop),
.sw_reset (sw_reset),
.stop_on_error (stop_on_error),
.stop_on_early_termination (stop_on_early_termination),
.sequence_number (sequence_number),
.descriptor_watermark (descriptor_watermark),
.response_watermark (response_watermark),
.response_buffer_empty (response_fifo_empty),
.response_buffer_full (response_fifo_full),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error (response_error),
.early_termination (response_early_termination)
);
defparam the_csr_block.ADDRESS_WIDTH = CSR_ADDRESS_WIDTH;
// Optional response port. When using a directly connected host it'll be a slave port and using a pre-fetching descriptor master it will be a streaming source port.
response_block the_response_block (
.clk (clk),
.reset (reset),
.mm_response_readdata (mm_response_readdata),
.mm_response_read (mm_response_read),
.mm_response_address (mm_response_address),
.mm_response_byteenable (mm_response_byteenable),
.mm_response_waitrequest (mm_response_waitrequest),
.src_response_data (src_response_data),
.src_response_valid (src_response_valid),
.src_response_ready (src_response_ready),
.sw_reset (sw_reset),
.response_watermark (response_watermark),
.response_fifo_full (response_fifo_full),
.response_fifo_empty (response_fifo_empty),
.done_strobe (done_strobe),
.actual_bytes_transferred (response_actual_bytes_transferred),
.error (response_error),
.early_termination (response_early_termination),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.descriptor_buffer_full (descriptor_buffer_full)
);
defparam the_response_block.RESPONSE_PORT = RESPONSE_PORT;
defparam the_response_block.FIFO_DEPTH = RESPONSE_FIFO_DEPTH;
defparam the_response_block.FIFO_DEPTH_LOG2 = RESPONSE_FIFO_DEPTH_LOG2;
/***************************************** END MODULE DECLERATIONS ************************************************/
/****************************************** COMBINATIONAL SIGNALS *************************************************/
// this block issues the commands so it's always ready for a response. The response FIFO fill level will be used to
// make sure additional ST-->MM commands are not issued if there is no room to catch the response.
assign snk_write_master_ready = 1'b1;
assign snk_read_master_ready = 1'b1;
assign done = (MODE == 1)? snk_read_master_ready : snk_write_master_ready;
assign done_strobe = (MODE == 1)? (snk_read_master_ready & snk_read_master_valid) : (snk_write_master_ready & snk_write_master_valid);
assign stop_issuing_commands = (response_fifo_full == 1) | (stop_descriptors == 1);
assign src_write_master_valid = write_command_valid;
assign write_command_ready = src_write_master_ready;
assign src_write_master_data = write_command_data;
assign src_read_master_valid = read_command_valid;
assign read_command_ready = src_read_master_ready;
assign src_read_master_data = read_command_data;
assign busy = (read_command_empty == 0) | (write_command_empty == 0) | // still have descriptors buffered in the FIFOs
(done == 0); // current transfer is still occuring
assign descriptor_buffer_empty = (read_command_empty == 1) & (write_command_empty == 1);
assign descriptor_buffer_full = (read_command_full == 1) | (write_command_full == 1);
assign write_descriptor_watermark = 16'h0000 | write_command_used; // zero padding the upper unused bits
assign read_descriptor_watermark = 16'h0000 | read_command_used; // zero padding the upper unused bits
assign descriptor_watermark = {write_descriptor_watermark, read_descriptor_watermark};
assign reset_stalled = snk_read_master_data[0] | snk_write_master_data[32];
assign master_stop_state = ((MODE == 0)? (snk_read_master_data[1] & snk_write_master_data[33]) :
(MODE == 1)? snk_read_master_data[1] : snk_write_master_data[33]);
assign descriptors_stop_state = (stop_descriptors == 1) & ((MODE == 0)? ((src_read_master_ready == 1) & (src_write_master_ready == 1)) :
(MODE == 1)? (src_read_master_ready == 1) : (src_write_master_ready == 1));
assign stop_state = (master_stop_state == 1) | (descriptors_stop_state == 1);
assign response_actual_bytes_transferred = snk_write_master_data[31:0];
assign response_error = snk_write_master_data[41:34];
assign response_early_termination = snk_write_master_data[42];
/**************************************** END COMBINATIONAL SIGNALS ***********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This block is responsible for communicating with the host processor/
descriptor prefetching master block. It uses FIFOs to buffer descriptors
to keep the read and write masters operating without intervention from a
host processor. This block is comprised of three main blocks:
1) Descriptor buffer
2) CSR
3) Response
The descriptor buffer recieves descriptors from a host/prefetcher and
registers the incoming byte lanes. When the descriptor 'go' bit has been
written, the descriptor is committed to the read/write descriptor buffers.
From there the descriptors are exposed to the read and write masters without
intervention from the host. The descriptor port is either 128 or 256 bits
wide depending on whether or not the enhanced features setting has been enabled.
Since the port is write only minimial logic will be created in the fabric
to adapt the byte enables for narrow masters connecting to this port. This
port contains a single address so address bits are exposed to the fabric.
The CSR (control-status register) block is used to provide information
back to the host as well as allow the SGDMA to be controlled on a
non-descriptor basis. The host driver should be written to mostly interact
with this port as interrupts and status information is accessible from this
block.
The optional response block is used to feed information on a per descriptor
basis back to the host or prefetching descriptor master. In most cases the
port will be used for sharing infomation about ST->MM transfers.
Communication between this block and the masters is performed using pairs
of Avalon-ST port connections. When the SGDMA is setup for MM->ST then the
write master port connections are removed and visa vera for ST->MM and the
read master. For more detailed information refer to "SGDMA_dispatcher_ug.pdf"
for more details.
Author: JCJB
Date: 08/13/2010
1.0 - Initial release
1.1 - Changed the stopped and resetting logic to correctly reflect the state
of the hardware (this block and the masters).
1.2 - Added stop descriptors logic
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module dispatcher (
clk,
reset,
// 128/256 bit write only port for feeding the dispatcher descriptors, no address since it's only one word wide, blocking when too many descriptors are buffered
descriptor_writedata,
descriptor_byteenable,
descriptor_write,
descriptor_waitrequest,
// control and status port, 32 bits wide with a read latency of 2 and non-blocking
csr_writedata,
csr_byteenable,
csr_write,
csr_readdata,
csr_read,
csr_address, // 4 addresses when ENHANCED_FEATURES is off (zero) otherwise 8 addresses are available
csr_irq, // only available if the response port is not an ST source (in that case the SGDMA pre-fetching block will issue interrupts)
// response slave port (when "RESPONSE_PORT" is set to 0), 32 bits wide, read only, and a read latency of 3 cycles
mm_response_readdata,
mm_response_read,
mm_response_address, // only two addresses
mm_response_byteenable, // last byte read pops the response FIFO
mm_response_waitrequest,
// response source port (when "RESPONSE_PORT" is set to 1),
src_response_data,
src_response_valid,
src_response_ready,
// write master source port (sends commands to write master)
src_write_master_data,
src_write_master_valid,
src_write_master_ready,
// write master sink port (recieves response from write master)
snk_write_master_data,
snk_write_master_valid,
snk_write_master_ready,
// read master source port (sends commands to read master)
src_read_master_data,
src_read_master_valid,
src_read_master_ready,
// read master sink port (recieves response from the read master)
snk_read_master_data,
snk_read_master_valid,
snk_read_master_ready
);
// y = log2(x)
function integer log2;
input integer x;
begin
x = x-1;
for(log2=0; x>0; log2=log2+1)
x = x>>1;
end
endfunction
parameter MODE = 0; // 0 for MM->MM, 1 for MM->ST, 2 for ST->MM
parameter RESPONSE_PORT = 0; // 0 for MM, 1 for ST, 2 for Disabled // normally disabled for all but ST->MM transfers
parameter DESCRIPTOR_FIFO_DEPTH = 128; // 16-1024 in powers of 2
parameter ENHANCED_FEATURES = 1; // 1 for Enabled, 0 for Disabled
parameter DESCRIPTOR_WIDTH = 256; // 256 when enhanced mode is on, 128 for off (needs to be controlled by callback since it influences data width)
parameter DESCRIPTOR_BYTEENABLE_WIDTH = 32; // 32 when enhanced mode is on, 16 for off (needs to be controlled by callback since it influences byte enable width)
parameter CSR_ADDRESS_WIDTH = 3; // always 3 bits wide
localparam RESPONSE_FIFO_DEPTH = 2 * DESCRIPTOR_FIFO_DEPTH;
localparam DESCRIPTOR_FIFO_DEPTH_LOG2 = log2(DESCRIPTOR_FIFO_DEPTH);
localparam RESPONSE_FIFO_DEPTH_LOG2 = log2(RESPONSE_FIFO_DEPTH);
input clk;
input reset;
input [DESCRIPTOR_WIDTH-1:0] descriptor_writedata;
input [DESCRIPTOR_BYTEENABLE_WIDTH-1:0] descriptor_byteenable;
input descriptor_write;
output wire descriptor_waitrequest;
input [31:0] csr_writedata;
input [3:0] csr_byteenable;
input csr_write;
output wire [31:0] csr_readdata;
input csr_read;
input [CSR_ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
// Used by a host with a master (like Nios II)
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address;
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
// Used by a pre-fetching master
output wire [255:0] src_response_data; // making wide in case we need to jam more signals in here, unnecessary bits will be grounded/optimized away
output wire src_response_valid;
input src_response_ready;
output wire [255:0] src_write_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_write_master_valid;
input src_write_master_ready;
input [255:0] snk_write_master_data; // might need to jam more bits in......
input snk_write_master_valid;
output wire snk_write_master_ready;
output wire [255:0] src_read_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_read_master_valid;
input src_read_master_ready;
input [255:0] snk_read_master_data; // might need to jam more bits in......
input snk_read_master_valid;
output wire snk_read_master_ready;
/* Internal wires and registers */
// descriptor information
wire read_command_valid;
wire read_command_ready;
wire [255:0] read_command_data;
wire read_command_empty;
wire read_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] read_command_used; // true used signal so extra MSB is included
wire write_command_valid;
wire write_command_ready;
wire [255:0] write_command_data;
wire write_command_empty;
wire write_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] write_command_used; // true used signal so extra MSB is included
wire [31:0] sequence_number;
wire transfer_complete_IRQ_mask;
wire early_termination_IRQ_mask;
wire [7:0] error_IRQ_mask;
wire descriptor_buffer_empty;
wire descriptor_buffer_full;
wire [15:0] write_descriptor_watermark;
wire [15:0] read_descriptor_watermark;
wire [31:0] descriptor_watermark;
wire busy;
wire done;
wire done_strobe;
wire stop_issuing_commands;
wire stop;
wire sw_reset;
wire stop_on_error;
wire stop_on_early_termination;
wire stop_descriptors;
wire reset_stalled;
wire master_stop_state;
wire descriptors_stop_state;
wire stop_state;
wire stopped_on_error;
wire stopped_on_early_termination;
wire response_fifo_full;
wire response_fifo_empty;
wire [15:0] response_watermark;
wire [7:0] response_error;
wire response_early_termination;
wire [31:0] response_actual_bytes_transferred;
/************************************************ REGISTERS *******************************************************/
/********************************************** END REGISTERS *****************************************************/
/******************************************* MODULE DECLERATIONS **************************************************/
// the descriptor buffers block instantiates the descriptor FIFOs and handshaking logic with the master command ports
descriptor_buffers the_descriptor_buffers (
.clk (clk),
.reset (reset),
.writedata (descriptor_writedata),
.write (descriptor_write),
.byteenable (descriptor_byteenable),
.waitrequest (descriptor_waitrequest),
.read_command_valid (read_command_valid),
.read_command_ready (read_command_ready),
.read_command_data (read_command_data),
.read_command_empty (read_command_empty),
.read_command_full (read_command_full),
.read_command_used (read_command_used),
.write_command_valid (write_command_valid),
.write_command_ready (write_command_ready),
.write_command_data (write_command_data),
.write_command_empty (write_command_empty),
.write_command_full (write_command_full),
.write_command_used (write_command_used),
.stop_issuing_commands (stop_issuing_commands),
.stop (stop),
.sw_reset (sw_reset),
.sequence_number (sequence_number),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask)
);
defparam the_descriptor_buffers.MODE = MODE;
defparam the_descriptor_buffers.DATA_WIDTH = DESCRIPTOR_WIDTH;
defparam the_descriptor_buffers.BYTE_ENABLE_WIDTH = DESCRIPTOR_WIDTH/8;
defparam the_descriptor_buffers.FIFO_DEPTH = DESCRIPTOR_FIFO_DEPTH;
defparam the_descriptor_buffers.FIFO_DEPTH_LOG2 = DESCRIPTOR_FIFO_DEPTH_LOG2;
// Control and status registers (and interrupts when a host connects directly to this block)
csr_block the_csr_block (
.clk (clk),
.reset (reset),
.csr_writedata (csr_writedata),
.csr_write (csr_write),
.csr_byteenable (csr_byteenable),
.csr_readdata (csr_readdata),
.csr_read (csr_read),
.csr_address (csr_address),
.csr_irq (csr_irq),
.done_strobe (done_strobe),
.busy (busy),
.descriptor_buffer_empty (descriptor_buffer_empty),
.descriptor_buffer_full (descriptor_buffer_full),
.stop_state (stop_state),
.stopped_on_error (stopped_on_error),
.stopped_on_early_termination (stopped_on_early_termination),
.stop_descriptors (stop_descriptors),
.reset_stalled (reset_stalled), // from the master(s) to tell the CSR block that it's still resetting
.stop (stop),
.sw_reset (sw_reset),
.stop_on_error (stop_on_error),
.stop_on_early_termination (stop_on_early_termination),
.sequence_number (sequence_number),
.descriptor_watermark (descriptor_watermark),
.response_watermark (response_watermark),
.response_buffer_empty (response_fifo_empty),
.response_buffer_full (response_fifo_full),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error (response_error),
.early_termination (response_early_termination)
);
defparam the_csr_block.ADDRESS_WIDTH = CSR_ADDRESS_WIDTH;
// Optional response port. When using a directly connected host it'll be a slave port and using a pre-fetching descriptor master it will be a streaming source port.
response_block the_response_block (
.clk (clk),
.reset (reset),
.mm_response_readdata (mm_response_readdata),
.mm_response_read (mm_response_read),
.mm_response_address (mm_response_address),
.mm_response_byteenable (mm_response_byteenable),
.mm_response_waitrequest (mm_response_waitrequest),
.src_response_data (src_response_data),
.src_response_valid (src_response_valid),
.src_response_ready (src_response_ready),
.sw_reset (sw_reset),
.response_watermark (response_watermark),
.response_fifo_full (response_fifo_full),
.response_fifo_empty (response_fifo_empty),
.done_strobe (done_strobe),
.actual_bytes_transferred (response_actual_bytes_transferred),
.error (response_error),
.early_termination (response_early_termination),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.descriptor_buffer_full (descriptor_buffer_full)
);
defparam the_response_block.RESPONSE_PORT = RESPONSE_PORT;
defparam the_response_block.FIFO_DEPTH = RESPONSE_FIFO_DEPTH;
defparam the_response_block.FIFO_DEPTH_LOG2 = RESPONSE_FIFO_DEPTH_LOG2;
/***************************************** END MODULE DECLERATIONS ************************************************/
/****************************************** COMBINATIONAL SIGNALS *************************************************/
// this block issues the commands so it's always ready for a response. The response FIFO fill level will be used to
// make sure additional ST-->MM commands are not issued if there is no room to catch the response.
assign snk_write_master_ready = 1'b1;
assign snk_read_master_ready = 1'b1;
assign done = (MODE == 1)? snk_read_master_ready : snk_write_master_ready;
assign done_strobe = (MODE == 1)? (snk_read_master_ready & snk_read_master_valid) : (snk_write_master_ready & snk_write_master_valid);
assign stop_issuing_commands = (response_fifo_full == 1) | (stop_descriptors == 1);
assign src_write_master_valid = write_command_valid;
assign write_command_ready = src_write_master_ready;
assign src_write_master_data = write_command_data;
assign src_read_master_valid = read_command_valid;
assign read_command_ready = src_read_master_ready;
assign src_read_master_data = read_command_data;
assign busy = (read_command_empty == 0) | (write_command_empty == 0) | // still have descriptors buffered in the FIFOs
(done == 0); // current transfer is still occuring
assign descriptor_buffer_empty = (read_command_empty == 1) & (write_command_empty == 1);
assign descriptor_buffer_full = (read_command_full == 1) | (write_command_full == 1);
assign write_descriptor_watermark = 16'h0000 | write_command_used; // zero padding the upper unused bits
assign read_descriptor_watermark = 16'h0000 | read_command_used; // zero padding the upper unused bits
assign descriptor_watermark = {write_descriptor_watermark, read_descriptor_watermark};
assign reset_stalled = snk_read_master_data[0] | snk_write_master_data[32];
assign master_stop_state = ((MODE == 0)? (snk_read_master_data[1] & snk_write_master_data[33]) :
(MODE == 1)? snk_read_master_data[1] : snk_write_master_data[33]);
assign descriptors_stop_state = (stop_descriptors == 1) & ((MODE == 0)? ((src_read_master_ready == 1) & (src_write_master_ready == 1)) :
(MODE == 1)? (src_read_master_ready == 1) : (src_write_master_ready == 1));
assign stop_state = (master_stop_state == 1) | (descriptors_stop_state == 1);
assign response_actual_bytes_transferred = snk_write_master_data[31:0];
assign response_error = snk_write_master_data[41:34];
assign response_early_termination = snk_write_master_data[42];
/**************************************** END COMBINATIONAL SIGNALS ***********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This block is responsible for communicating with the host processor/
descriptor prefetching master block. It uses FIFOs to buffer descriptors
to keep the read and write masters operating without intervention from a
host processor. This block is comprised of three main blocks:
1) Descriptor buffer
2) CSR
3) Response
The descriptor buffer recieves descriptors from a host/prefetcher and
registers the incoming byte lanes. When the descriptor 'go' bit has been
written, the descriptor is committed to the read/write descriptor buffers.
From there the descriptors are exposed to the read and write masters without
intervention from the host. The descriptor port is either 128 or 256 bits
wide depending on whether or not the enhanced features setting has been enabled.
Since the port is write only minimial logic will be created in the fabric
to adapt the byte enables for narrow masters connecting to this port. This
port contains a single address so address bits are exposed to the fabric.
The CSR (control-status register) block is used to provide information
back to the host as well as allow the SGDMA to be controlled on a
non-descriptor basis. The host driver should be written to mostly interact
with this port as interrupts and status information is accessible from this
block.
The optional response block is used to feed information on a per descriptor
basis back to the host or prefetching descriptor master. In most cases the
port will be used for sharing infomation about ST->MM transfers.
Communication between this block and the masters is performed using pairs
of Avalon-ST port connections. When the SGDMA is setup for MM->ST then the
write master port connections are removed and visa vera for ST->MM and the
read master. For more detailed information refer to "SGDMA_dispatcher_ug.pdf"
for more details.
Author: JCJB
Date: 08/13/2010
1.0 - Initial release
1.1 - Changed the stopped and resetting logic to correctly reflect the state
of the hardware (this block and the masters).
1.2 - Added stop descriptors logic
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module dispatcher (
clk,
reset,
// 128/256 bit write only port for feeding the dispatcher descriptors, no address since it's only one word wide, blocking when too many descriptors are buffered
descriptor_writedata,
descriptor_byteenable,
descriptor_write,
descriptor_waitrequest,
// control and status port, 32 bits wide with a read latency of 2 and non-blocking
csr_writedata,
csr_byteenable,
csr_write,
csr_readdata,
csr_read,
csr_address, // 4 addresses when ENHANCED_FEATURES is off (zero) otherwise 8 addresses are available
csr_irq, // only available if the response port is not an ST source (in that case the SGDMA pre-fetching block will issue interrupts)
// response slave port (when "RESPONSE_PORT" is set to 0), 32 bits wide, read only, and a read latency of 3 cycles
mm_response_readdata,
mm_response_read,
mm_response_address, // only two addresses
mm_response_byteenable, // last byte read pops the response FIFO
mm_response_waitrequest,
// response source port (when "RESPONSE_PORT" is set to 1),
src_response_data,
src_response_valid,
src_response_ready,
// write master source port (sends commands to write master)
src_write_master_data,
src_write_master_valid,
src_write_master_ready,
// write master sink port (recieves response from write master)
snk_write_master_data,
snk_write_master_valid,
snk_write_master_ready,
// read master source port (sends commands to read master)
src_read_master_data,
src_read_master_valid,
src_read_master_ready,
// read master sink port (recieves response from the read master)
snk_read_master_data,
snk_read_master_valid,
snk_read_master_ready
);
// y = log2(x)
function integer log2;
input integer x;
begin
x = x-1;
for(log2=0; x>0; log2=log2+1)
x = x>>1;
end
endfunction
parameter MODE = 0; // 0 for MM->MM, 1 for MM->ST, 2 for ST->MM
parameter RESPONSE_PORT = 0; // 0 for MM, 1 for ST, 2 for Disabled // normally disabled for all but ST->MM transfers
parameter DESCRIPTOR_FIFO_DEPTH = 128; // 16-1024 in powers of 2
parameter ENHANCED_FEATURES = 1; // 1 for Enabled, 0 for Disabled
parameter DESCRIPTOR_WIDTH = 256; // 256 when enhanced mode is on, 128 for off (needs to be controlled by callback since it influences data width)
parameter DESCRIPTOR_BYTEENABLE_WIDTH = 32; // 32 when enhanced mode is on, 16 for off (needs to be controlled by callback since it influences byte enable width)
parameter CSR_ADDRESS_WIDTH = 3; // always 3 bits wide
localparam RESPONSE_FIFO_DEPTH = 2 * DESCRIPTOR_FIFO_DEPTH;
localparam DESCRIPTOR_FIFO_DEPTH_LOG2 = log2(DESCRIPTOR_FIFO_DEPTH);
localparam RESPONSE_FIFO_DEPTH_LOG2 = log2(RESPONSE_FIFO_DEPTH);
input clk;
input reset;
input [DESCRIPTOR_WIDTH-1:0] descriptor_writedata;
input [DESCRIPTOR_BYTEENABLE_WIDTH-1:0] descriptor_byteenable;
input descriptor_write;
output wire descriptor_waitrequest;
input [31:0] csr_writedata;
input [3:0] csr_byteenable;
input csr_write;
output wire [31:0] csr_readdata;
input csr_read;
input [CSR_ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
// Used by a host with a master (like Nios II)
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address;
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
// Used by a pre-fetching master
output wire [255:0] src_response_data; // making wide in case we need to jam more signals in here, unnecessary bits will be grounded/optimized away
output wire src_response_valid;
input src_response_ready;
output wire [255:0] src_write_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_write_master_valid;
input src_write_master_ready;
input [255:0] snk_write_master_data; // might need to jam more bits in......
input snk_write_master_valid;
output wire snk_write_master_ready;
output wire [255:0] src_read_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_read_master_valid;
input src_read_master_ready;
input [255:0] snk_read_master_data; // might need to jam more bits in......
input snk_read_master_valid;
output wire snk_read_master_ready;
/* Internal wires and registers */
// descriptor information
wire read_command_valid;
wire read_command_ready;
wire [255:0] read_command_data;
wire read_command_empty;
wire read_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] read_command_used; // true used signal so extra MSB is included
wire write_command_valid;
wire write_command_ready;
wire [255:0] write_command_data;
wire write_command_empty;
wire write_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] write_command_used; // true used signal so extra MSB is included
wire [31:0] sequence_number;
wire transfer_complete_IRQ_mask;
wire early_termination_IRQ_mask;
wire [7:0] error_IRQ_mask;
wire descriptor_buffer_empty;
wire descriptor_buffer_full;
wire [15:0] write_descriptor_watermark;
wire [15:0] read_descriptor_watermark;
wire [31:0] descriptor_watermark;
wire busy;
wire done;
wire done_strobe;
wire stop_issuing_commands;
wire stop;
wire sw_reset;
wire stop_on_error;
wire stop_on_early_termination;
wire stop_descriptors;
wire reset_stalled;
wire master_stop_state;
wire descriptors_stop_state;
wire stop_state;
wire stopped_on_error;
wire stopped_on_early_termination;
wire response_fifo_full;
wire response_fifo_empty;
wire [15:0] response_watermark;
wire [7:0] response_error;
wire response_early_termination;
wire [31:0] response_actual_bytes_transferred;
/************************************************ REGISTERS *******************************************************/
/********************************************** END REGISTERS *****************************************************/
/******************************************* MODULE DECLERATIONS **************************************************/
// the descriptor buffers block instantiates the descriptor FIFOs and handshaking logic with the master command ports
descriptor_buffers the_descriptor_buffers (
.clk (clk),
.reset (reset),
.writedata (descriptor_writedata),
.write (descriptor_write),
.byteenable (descriptor_byteenable),
.waitrequest (descriptor_waitrequest),
.read_command_valid (read_command_valid),
.read_command_ready (read_command_ready),
.read_command_data (read_command_data),
.read_command_empty (read_command_empty),
.read_command_full (read_command_full),
.read_command_used (read_command_used),
.write_command_valid (write_command_valid),
.write_command_ready (write_command_ready),
.write_command_data (write_command_data),
.write_command_empty (write_command_empty),
.write_command_full (write_command_full),
.write_command_used (write_command_used),
.stop_issuing_commands (stop_issuing_commands),
.stop (stop),
.sw_reset (sw_reset),
.sequence_number (sequence_number),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask)
);
defparam the_descriptor_buffers.MODE = MODE;
defparam the_descriptor_buffers.DATA_WIDTH = DESCRIPTOR_WIDTH;
defparam the_descriptor_buffers.BYTE_ENABLE_WIDTH = DESCRIPTOR_WIDTH/8;
defparam the_descriptor_buffers.FIFO_DEPTH = DESCRIPTOR_FIFO_DEPTH;
defparam the_descriptor_buffers.FIFO_DEPTH_LOG2 = DESCRIPTOR_FIFO_DEPTH_LOG2;
// Control and status registers (and interrupts when a host connects directly to this block)
csr_block the_csr_block (
.clk (clk),
.reset (reset),
.csr_writedata (csr_writedata),
.csr_write (csr_write),
.csr_byteenable (csr_byteenable),
.csr_readdata (csr_readdata),
.csr_read (csr_read),
.csr_address (csr_address),
.csr_irq (csr_irq),
.done_strobe (done_strobe),
.busy (busy),
.descriptor_buffer_empty (descriptor_buffer_empty),
.descriptor_buffer_full (descriptor_buffer_full),
.stop_state (stop_state),
.stopped_on_error (stopped_on_error),
.stopped_on_early_termination (stopped_on_early_termination),
.stop_descriptors (stop_descriptors),
.reset_stalled (reset_stalled), // from the master(s) to tell the CSR block that it's still resetting
.stop (stop),
.sw_reset (sw_reset),
.stop_on_error (stop_on_error),
.stop_on_early_termination (stop_on_early_termination),
.sequence_number (sequence_number),
.descriptor_watermark (descriptor_watermark),
.response_watermark (response_watermark),
.response_buffer_empty (response_fifo_empty),
.response_buffer_full (response_fifo_full),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error (response_error),
.early_termination (response_early_termination)
);
defparam the_csr_block.ADDRESS_WIDTH = CSR_ADDRESS_WIDTH;
// Optional response port. When using a directly connected host it'll be a slave port and using a pre-fetching descriptor master it will be a streaming source port.
response_block the_response_block (
.clk (clk),
.reset (reset),
.mm_response_readdata (mm_response_readdata),
.mm_response_read (mm_response_read),
.mm_response_address (mm_response_address),
.mm_response_byteenable (mm_response_byteenable),
.mm_response_waitrequest (mm_response_waitrequest),
.src_response_data (src_response_data),
.src_response_valid (src_response_valid),
.src_response_ready (src_response_ready),
.sw_reset (sw_reset),
.response_watermark (response_watermark),
.response_fifo_full (response_fifo_full),
.response_fifo_empty (response_fifo_empty),
.done_strobe (done_strobe),
.actual_bytes_transferred (response_actual_bytes_transferred),
.error (response_error),
.early_termination (response_early_termination),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.descriptor_buffer_full (descriptor_buffer_full)
);
defparam the_response_block.RESPONSE_PORT = RESPONSE_PORT;
defparam the_response_block.FIFO_DEPTH = RESPONSE_FIFO_DEPTH;
defparam the_response_block.FIFO_DEPTH_LOG2 = RESPONSE_FIFO_DEPTH_LOG2;
/***************************************** END MODULE DECLERATIONS ************************************************/
/****************************************** COMBINATIONAL SIGNALS *************************************************/
// this block issues the commands so it's always ready for a response. The response FIFO fill level will be used to
// make sure additional ST-->MM commands are not issued if there is no room to catch the response.
assign snk_write_master_ready = 1'b1;
assign snk_read_master_ready = 1'b1;
assign done = (MODE == 1)? snk_read_master_ready : snk_write_master_ready;
assign done_strobe = (MODE == 1)? (snk_read_master_ready & snk_read_master_valid) : (snk_write_master_ready & snk_write_master_valid);
assign stop_issuing_commands = (response_fifo_full == 1) | (stop_descriptors == 1);
assign src_write_master_valid = write_command_valid;
assign write_command_ready = src_write_master_ready;
assign src_write_master_data = write_command_data;
assign src_read_master_valid = read_command_valid;
assign read_command_ready = src_read_master_ready;
assign src_read_master_data = read_command_data;
assign busy = (read_command_empty == 0) | (write_command_empty == 0) | // still have descriptors buffered in the FIFOs
(done == 0); // current transfer is still occuring
assign descriptor_buffer_empty = (read_command_empty == 1) & (write_command_empty == 1);
assign descriptor_buffer_full = (read_command_full == 1) | (write_command_full == 1);
assign write_descriptor_watermark = 16'h0000 | write_command_used; // zero padding the upper unused bits
assign read_descriptor_watermark = 16'h0000 | read_command_used; // zero padding the upper unused bits
assign descriptor_watermark = {write_descriptor_watermark, read_descriptor_watermark};
assign reset_stalled = snk_read_master_data[0] | snk_write_master_data[32];
assign master_stop_state = ((MODE == 0)? (snk_read_master_data[1] & snk_write_master_data[33]) :
(MODE == 1)? snk_read_master_data[1] : snk_write_master_data[33]);
assign descriptors_stop_state = (stop_descriptors == 1) & ((MODE == 0)? ((src_read_master_ready == 1) & (src_write_master_ready == 1)) :
(MODE == 1)? (src_read_master_ready == 1) : (src_write_master_ready == 1));
assign stop_state = (master_stop_state == 1) | (descriptors_stop_state == 1);
assign response_actual_bytes_transferred = snk_write_master_data[31:0];
assign response_error = snk_write_master_data[41:34];
assign response_early_termination = snk_write_master_data[42];
/**************************************** END COMBINATIONAL SIGNALS ***********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This block is responsible for communicating with the host processor/
descriptor prefetching master block. It uses FIFOs to buffer descriptors
to keep the read and write masters operating without intervention from a
host processor. This block is comprised of three main blocks:
1) Descriptor buffer
2) CSR
3) Response
The descriptor buffer recieves descriptors from a host/prefetcher and
registers the incoming byte lanes. When the descriptor 'go' bit has been
written, the descriptor is committed to the read/write descriptor buffers.
From there the descriptors are exposed to the read and write masters without
intervention from the host. The descriptor port is either 128 or 256 bits
wide depending on whether or not the enhanced features setting has been enabled.
Since the port is write only minimial logic will be created in the fabric
to adapt the byte enables for narrow masters connecting to this port. This
port contains a single address so address bits are exposed to the fabric.
The CSR (control-status register) block is used to provide information
back to the host as well as allow the SGDMA to be controlled on a
non-descriptor basis. The host driver should be written to mostly interact
with this port as interrupts and status information is accessible from this
block.
The optional response block is used to feed information on a per descriptor
basis back to the host or prefetching descriptor master. In most cases the
port will be used for sharing infomation about ST->MM transfers.
Communication between this block and the masters is performed using pairs
of Avalon-ST port connections. When the SGDMA is setup for MM->ST then the
write master port connections are removed and visa vera for ST->MM and the
read master. For more detailed information refer to "SGDMA_dispatcher_ug.pdf"
for more details.
Author: JCJB
Date: 08/13/2010
1.0 - Initial release
1.1 - Changed the stopped and resetting logic to correctly reflect the state
of the hardware (this block and the masters).
1.2 - Added stop descriptors logic
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module dispatcher (
clk,
reset,
// 128/256 bit write only port for feeding the dispatcher descriptors, no address since it's only one word wide, blocking when too many descriptors are buffered
descriptor_writedata,
descriptor_byteenable,
descriptor_write,
descriptor_waitrequest,
// control and status port, 32 bits wide with a read latency of 2 and non-blocking
csr_writedata,
csr_byteenable,
csr_write,
csr_readdata,
csr_read,
csr_address, // 4 addresses when ENHANCED_FEATURES is off (zero) otherwise 8 addresses are available
csr_irq, // only available if the response port is not an ST source (in that case the SGDMA pre-fetching block will issue interrupts)
// response slave port (when "RESPONSE_PORT" is set to 0), 32 bits wide, read only, and a read latency of 3 cycles
mm_response_readdata,
mm_response_read,
mm_response_address, // only two addresses
mm_response_byteenable, // last byte read pops the response FIFO
mm_response_waitrequest,
// response source port (when "RESPONSE_PORT" is set to 1),
src_response_data,
src_response_valid,
src_response_ready,
// write master source port (sends commands to write master)
src_write_master_data,
src_write_master_valid,
src_write_master_ready,
// write master sink port (recieves response from write master)
snk_write_master_data,
snk_write_master_valid,
snk_write_master_ready,
// read master source port (sends commands to read master)
src_read_master_data,
src_read_master_valid,
src_read_master_ready,
// read master sink port (recieves response from the read master)
snk_read_master_data,
snk_read_master_valid,
snk_read_master_ready
);
// y = log2(x)
function integer log2;
input integer x;
begin
x = x-1;
for(log2=0; x>0; log2=log2+1)
x = x>>1;
end
endfunction
parameter MODE = 0; // 0 for MM->MM, 1 for MM->ST, 2 for ST->MM
parameter RESPONSE_PORT = 0; // 0 for MM, 1 for ST, 2 for Disabled // normally disabled for all but ST->MM transfers
parameter DESCRIPTOR_FIFO_DEPTH = 128; // 16-1024 in powers of 2
parameter ENHANCED_FEATURES = 1; // 1 for Enabled, 0 for Disabled
parameter DESCRIPTOR_WIDTH = 256; // 256 when enhanced mode is on, 128 for off (needs to be controlled by callback since it influences data width)
parameter DESCRIPTOR_BYTEENABLE_WIDTH = 32; // 32 when enhanced mode is on, 16 for off (needs to be controlled by callback since it influences byte enable width)
parameter CSR_ADDRESS_WIDTH = 3; // always 3 bits wide
localparam RESPONSE_FIFO_DEPTH = 2 * DESCRIPTOR_FIFO_DEPTH;
localparam DESCRIPTOR_FIFO_DEPTH_LOG2 = log2(DESCRIPTOR_FIFO_DEPTH);
localparam RESPONSE_FIFO_DEPTH_LOG2 = log2(RESPONSE_FIFO_DEPTH);
input clk;
input reset;
input [DESCRIPTOR_WIDTH-1:0] descriptor_writedata;
input [DESCRIPTOR_BYTEENABLE_WIDTH-1:0] descriptor_byteenable;
input descriptor_write;
output wire descriptor_waitrequest;
input [31:0] csr_writedata;
input [3:0] csr_byteenable;
input csr_write;
output wire [31:0] csr_readdata;
input csr_read;
input [CSR_ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
// Used by a host with a master (like Nios II)
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address;
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
// Used by a pre-fetching master
output wire [255:0] src_response_data; // making wide in case we need to jam more signals in here, unnecessary bits will be grounded/optimized away
output wire src_response_valid;
input src_response_ready;
output wire [255:0] src_write_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_write_master_valid;
input src_write_master_ready;
input [255:0] snk_write_master_data; // might need to jam more bits in......
input snk_write_master_valid;
output wire snk_write_master_ready;
output wire [255:0] src_read_master_data; // don't know how many bits the master will use, unnecessary bits will be grounded/optimized away
output wire src_read_master_valid;
input src_read_master_ready;
input [255:0] snk_read_master_data; // might need to jam more bits in......
input snk_read_master_valid;
output wire snk_read_master_ready;
/* Internal wires and registers */
// descriptor information
wire read_command_valid;
wire read_command_ready;
wire [255:0] read_command_data;
wire read_command_empty;
wire read_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] read_command_used; // true used signal so extra MSB is included
wire write_command_valid;
wire write_command_ready;
wire [255:0] write_command_data;
wire write_command_empty;
wire write_command_full;
wire [DESCRIPTOR_FIFO_DEPTH_LOG2:0] write_command_used; // true used signal so extra MSB is included
wire [31:0] sequence_number;
wire transfer_complete_IRQ_mask;
wire early_termination_IRQ_mask;
wire [7:0] error_IRQ_mask;
wire descriptor_buffer_empty;
wire descriptor_buffer_full;
wire [15:0] write_descriptor_watermark;
wire [15:0] read_descriptor_watermark;
wire [31:0] descriptor_watermark;
wire busy;
wire done;
wire done_strobe;
wire stop_issuing_commands;
wire stop;
wire sw_reset;
wire stop_on_error;
wire stop_on_early_termination;
wire stop_descriptors;
wire reset_stalled;
wire master_stop_state;
wire descriptors_stop_state;
wire stop_state;
wire stopped_on_error;
wire stopped_on_early_termination;
wire response_fifo_full;
wire response_fifo_empty;
wire [15:0] response_watermark;
wire [7:0] response_error;
wire response_early_termination;
wire [31:0] response_actual_bytes_transferred;
/************************************************ REGISTERS *******************************************************/
/********************************************** END REGISTERS *****************************************************/
/******************************************* MODULE DECLERATIONS **************************************************/
// the descriptor buffers block instantiates the descriptor FIFOs and handshaking logic with the master command ports
descriptor_buffers the_descriptor_buffers (
.clk (clk),
.reset (reset),
.writedata (descriptor_writedata),
.write (descriptor_write),
.byteenable (descriptor_byteenable),
.waitrequest (descriptor_waitrequest),
.read_command_valid (read_command_valid),
.read_command_ready (read_command_ready),
.read_command_data (read_command_data),
.read_command_empty (read_command_empty),
.read_command_full (read_command_full),
.read_command_used (read_command_used),
.write_command_valid (write_command_valid),
.write_command_ready (write_command_ready),
.write_command_data (write_command_data),
.write_command_empty (write_command_empty),
.write_command_full (write_command_full),
.write_command_used (write_command_used),
.stop_issuing_commands (stop_issuing_commands),
.stop (stop),
.sw_reset (sw_reset),
.sequence_number (sequence_number),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask)
);
defparam the_descriptor_buffers.MODE = MODE;
defparam the_descriptor_buffers.DATA_WIDTH = DESCRIPTOR_WIDTH;
defparam the_descriptor_buffers.BYTE_ENABLE_WIDTH = DESCRIPTOR_WIDTH/8;
defparam the_descriptor_buffers.FIFO_DEPTH = DESCRIPTOR_FIFO_DEPTH;
defparam the_descriptor_buffers.FIFO_DEPTH_LOG2 = DESCRIPTOR_FIFO_DEPTH_LOG2;
// Control and status registers (and interrupts when a host connects directly to this block)
csr_block the_csr_block (
.clk (clk),
.reset (reset),
.csr_writedata (csr_writedata),
.csr_write (csr_write),
.csr_byteenable (csr_byteenable),
.csr_readdata (csr_readdata),
.csr_read (csr_read),
.csr_address (csr_address),
.csr_irq (csr_irq),
.done_strobe (done_strobe),
.busy (busy),
.descriptor_buffer_empty (descriptor_buffer_empty),
.descriptor_buffer_full (descriptor_buffer_full),
.stop_state (stop_state),
.stopped_on_error (stopped_on_error),
.stopped_on_early_termination (stopped_on_early_termination),
.stop_descriptors (stop_descriptors),
.reset_stalled (reset_stalled), // from the master(s) to tell the CSR block that it's still resetting
.stop (stop),
.sw_reset (sw_reset),
.stop_on_error (stop_on_error),
.stop_on_early_termination (stop_on_early_termination),
.sequence_number (sequence_number),
.descriptor_watermark (descriptor_watermark),
.response_watermark (response_watermark),
.response_buffer_empty (response_fifo_empty),
.response_buffer_full (response_fifo_full),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.error (response_error),
.early_termination (response_early_termination)
);
defparam the_csr_block.ADDRESS_WIDTH = CSR_ADDRESS_WIDTH;
// Optional response port. When using a directly connected host it'll be a slave port and using a pre-fetching descriptor master it will be a streaming source port.
response_block the_response_block (
.clk (clk),
.reset (reset),
.mm_response_readdata (mm_response_readdata),
.mm_response_read (mm_response_read),
.mm_response_address (mm_response_address),
.mm_response_byteenable (mm_response_byteenable),
.mm_response_waitrequest (mm_response_waitrequest),
.src_response_data (src_response_data),
.src_response_valid (src_response_valid),
.src_response_ready (src_response_ready),
.sw_reset (sw_reset),
.response_watermark (response_watermark),
.response_fifo_full (response_fifo_full),
.response_fifo_empty (response_fifo_empty),
.done_strobe (done_strobe),
.actual_bytes_transferred (response_actual_bytes_transferred),
.error (response_error),
.early_termination (response_early_termination),
.transfer_complete_IRQ_mask (transfer_complete_IRQ_mask),
.error_IRQ_mask (error_IRQ_mask),
.early_termination_IRQ_mask (early_termination_IRQ_mask),
.descriptor_buffer_full (descriptor_buffer_full)
);
defparam the_response_block.RESPONSE_PORT = RESPONSE_PORT;
defparam the_response_block.FIFO_DEPTH = RESPONSE_FIFO_DEPTH;
defparam the_response_block.FIFO_DEPTH_LOG2 = RESPONSE_FIFO_DEPTH_LOG2;
/***************************************** END MODULE DECLERATIONS ************************************************/
/****************************************** COMBINATIONAL SIGNALS *************************************************/
// this block issues the commands so it's always ready for a response. The response FIFO fill level will be used to
// make sure additional ST-->MM commands are not issued if there is no room to catch the response.
assign snk_write_master_ready = 1'b1;
assign snk_read_master_ready = 1'b1;
assign done = (MODE == 1)? snk_read_master_ready : snk_write_master_ready;
assign done_strobe = (MODE == 1)? (snk_read_master_ready & snk_read_master_valid) : (snk_write_master_ready & snk_write_master_valid);
assign stop_issuing_commands = (response_fifo_full == 1) | (stop_descriptors == 1);
assign src_write_master_valid = write_command_valid;
assign write_command_ready = src_write_master_ready;
assign src_write_master_data = write_command_data;
assign src_read_master_valid = read_command_valid;
assign read_command_ready = src_read_master_ready;
assign src_read_master_data = read_command_data;
assign busy = (read_command_empty == 0) | (write_command_empty == 0) | // still have descriptors buffered in the FIFOs
(done == 0); // current transfer is still occuring
assign descriptor_buffer_empty = (read_command_empty == 1) & (write_command_empty == 1);
assign descriptor_buffer_full = (read_command_full == 1) | (write_command_full == 1);
assign write_descriptor_watermark = 16'h0000 | write_command_used; // zero padding the upper unused bits
assign read_descriptor_watermark = 16'h0000 | read_command_used; // zero padding the upper unused bits
assign descriptor_watermark = {write_descriptor_watermark, read_descriptor_watermark};
assign reset_stalled = snk_read_master_data[0] | snk_write_master_data[32];
assign master_stop_state = ((MODE == 0)? (snk_read_master_data[1] & snk_write_master_data[33]) :
(MODE == 1)? snk_read_master_data[1] : snk_write_master_data[33]);
assign descriptors_stop_state = (stop_descriptors == 1) & ((MODE == 0)? ((src_read_master_ready == 1) & (src_write_master_ready == 1)) :
(MODE == 1)? (src_read_master_ready == 1) : (src_write_master_ready == 1));
assign stop_state = (master_stop_state == 1) | (descriptors_stop_state == 1);
assign response_actual_bytes_transferred = snk_write_master_data[31:0];
assign response_error = snk_write_master_data[41:34];
assign response_early_termination = snk_write_master_data[42];
/**************************************** END COMBINATIONAL SIGNALS ***********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This optional block is used for two purposes:
1) Relay response information back to the host typically in ST->MM mode.
This information is 'actual bytes transferred', 'error', and 'early termination'.
2) Relay response and interrupt information back to a prefetching master block
that will write the contents back to memory. Interrupt information is also passed
since the interrupt needs to occur when the prefetching master block overwrites
the descriptor in main memory and not when the event occurs. The host needs to read
the interrupt condition out of memory so it could potentially get out of sync if
the interrupt information wasn't buffered and delayed.
This block has three response port options: MM slave, ST source, and disabled.
When you don't need access to response information (MM->MM or MM->ST) or interrupts in
the case of a prefetching descriptor master then you can safely disable the port.
By disabling the port you will not consume any logic resources or on-chip memory blocks.
When the source port is enabled bit 52 of the data stream represents the "descriptor full"
condition. The descriptor prefetching master can use this signal to perform pipelined reads
without having to worry about flow control (since there is room for an entire descriptor to be
written). This is benefical as apposed to performing descriptor reads, buffering the data, then
writting it out to the descriptor buffer block.
Version 1.0
1.0 - If you attempt to use the wrong response port type you will be issued a warning
but allowed to generate. This is because in some cases you may not need the typical
behavior. For example if you perform MM->MM transfers with some streaming IP between
the read and write masters you still might need access to error bits. Likewise
if you don't enable the streaming sink port while using a descriptor pre-fetching block
you may not care if you get interrupted early and want to use the CSR block for interrupts
instead.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module response_block (
clk,
reset,
mm_response_readdata,
mm_response_read,
mm_response_address,
mm_response_byteenable,
mm_response_waitrequest,
src_response_data,
src_response_valid,
src_response_ready,
sw_reset,
response_watermark,
response_fifo_full,
response_fifo_empty,
done_strobe,
actual_bytes_transferred,
error,
early_termination,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
descriptor_buffer_full
);
parameter RESPONSE_PORT = 0; // when disabled all the outputs will be disconnected by the component wrapper
parameter FIFO_DEPTH = 256; // needs to be double the descriptor FIFO depth
parameter FIFO_DEPTH_LOG2 = 8;
localparam FIFO_WIDTH = (RESPONSE_PORT == 0)? 41 : 51; // when 'RESPONSE_PORT' is 1 then the response port is set to streaming and must pass the interrupt masks as well
input clk;
input reset;
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address; // only have 2 addresses
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
output wire [255:0] src_response_data; // not going to use all these bits, the remainder will be grounded
output wire src_response_valid;
input src_response_ready;
input sw_reset;
output wire [15:0] response_watermark;
output wire response_fifo_full;
output wire response_fifo_empty;
input done_strobe;
input [31:0] actual_bytes_transferred;
input [7:0] error;
input early_termination;
// all of these signals are only used the ST source response port since the pre-fetching master component will handle the interrupt generation as apposed to the CSR block
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input descriptor_buffer_full; // handy signal for the prefetching master to use so that it known when to blast a new descriptor into the dispatcher
/* internal signals and registers */
wire [FIFO_DEPTH_LOG2-1:0] fifo_used;
wire fifo_full;
wire fifo_empty;
wire fifo_read;
wire [FIFO_WIDTH-1:0] fifo_input;
wire [FIFO_WIDTH-1:0] fifo_output;
generate
if (RESPONSE_PORT == 0) // slave port used for response data
begin
assign fifo_input = {early_termination, error, actual_bytes_transferred};
assign fifo_read = (mm_response_read == 1) & (fifo_empty == 0) & (mm_response_address == 1) & (mm_response_byteenable[3] == 1); // reading from the upper byte (byte offset 7) pops the fifo
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset),
.sclr (sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
// either actual bytes transfered when address == 0 or {zero padding, early_termination, error[7:0]} when address = 1
assign mm_response_readdata = (mm_response_address == 0)? fifo_output[31:0] : {{23{1'b0}}, fifo_output[40:32]};
assign mm_response_waitrequest = fifo_empty;
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no streaming port so ground all of its outputs
assign src_response_data = 0;
assign src_response_valid = 0;
end
else if (RESPONSE_PORT == 1) // streaming source port used for response data (prefetcher will catch this data)
begin
assign fifo_input = {early_termination_IRQ_mask, error_IRQ_mask, transfer_complete_IRQ_mask, early_termination, error, actual_bytes_transferred};
assign fifo_read = (fifo_empty == 0) & (src_response_ready == 1);
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset | sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
assign src_response_data = {{204{1'b0}}, descriptor_buffer_full, fifo_output}; // zero padding the upper bits, also sending out the descriptor buffer full signal to simplify the throttling in the prefetching master (bit 52)
assign src_response_valid = (fifo_empty == 0);
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount;
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no slave port so ground all of its outputs
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
end
else // no response port so grounding all outputs
begin
assign fifo_input = 0;
assign fifo_output = 0;
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
assign src_response_data = 0;
assign src_response_valid = 0;
assign response_watermark = 0;
assign response_fifo_full = 0;
assign response_fifo_empty = 0;
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This optional block is used for two purposes:
1) Relay response information back to the host typically in ST->MM mode.
This information is 'actual bytes transferred', 'error', and 'early termination'.
2) Relay response and interrupt information back to a prefetching master block
that will write the contents back to memory. Interrupt information is also passed
since the interrupt needs to occur when the prefetching master block overwrites
the descriptor in main memory and not when the event occurs. The host needs to read
the interrupt condition out of memory so it could potentially get out of sync if
the interrupt information wasn't buffered and delayed.
This block has three response port options: MM slave, ST source, and disabled.
When you don't need access to response information (MM->MM or MM->ST) or interrupts in
the case of a prefetching descriptor master then you can safely disable the port.
By disabling the port you will not consume any logic resources or on-chip memory blocks.
When the source port is enabled bit 52 of the data stream represents the "descriptor full"
condition. The descriptor prefetching master can use this signal to perform pipelined reads
without having to worry about flow control (since there is room for an entire descriptor to be
written). This is benefical as apposed to performing descriptor reads, buffering the data, then
writting it out to the descriptor buffer block.
Version 1.0
1.0 - If you attempt to use the wrong response port type you will be issued a warning
but allowed to generate. This is because in some cases you may not need the typical
behavior. For example if you perform MM->MM transfers with some streaming IP between
the read and write masters you still might need access to error bits. Likewise
if you don't enable the streaming sink port while using a descriptor pre-fetching block
you may not care if you get interrupted early and want to use the CSR block for interrupts
instead.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module response_block (
clk,
reset,
mm_response_readdata,
mm_response_read,
mm_response_address,
mm_response_byteenable,
mm_response_waitrequest,
src_response_data,
src_response_valid,
src_response_ready,
sw_reset,
response_watermark,
response_fifo_full,
response_fifo_empty,
done_strobe,
actual_bytes_transferred,
error,
early_termination,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
descriptor_buffer_full
);
parameter RESPONSE_PORT = 0; // when disabled all the outputs will be disconnected by the component wrapper
parameter FIFO_DEPTH = 256; // needs to be double the descriptor FIFO depth
parameter FIFO_DEPTH_LOG2 = 8;
localparam FIFO_WIDTH = (RESPONSE_PORT == 0)? 41 : 51; // when 'RESPONSE_PORT' is 1 then the response port is set to streaming and must pass the interrupt masks as well
input clk;
input reset;
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address; // only have 2 addresses
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
output wire [255:0] src_response_data; // not going to use all these bits, the remainder will be grounded
output wire src_response_valid;
input src_response_ready;
input sw_reset;
output wire [15:0] response_watermark;
output wire response_fifo_full;
output wire response_fifo_empty;
input done_strobe;
input [31:0] actual_bytes_transferred;
input [7:0] error;
input early_termination;
// all of these signals are only used the ST source response port since the pre-fetching master component will handle the interrupt generation as apposed to the CSR block
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input descriptor_buffer_full; // handy signal for the prefetching master to use so that it known when to blast a new descriptor into the dispatcher
/* internal signals and registers */
wire [FIFO_DEPTH_LOG2-1:0] fifo_used;
wire fifo_full;
wire fifo_empty;
wire fifo_read;
wire [FIFO_WIDTH-1:0] fifo_input;
wire [FIFO_WIDTH-1:0] fifo_output;
generate
if (RESPONSE_PORT == 0) // slave port used for response data
begin
assign fifo_input = {early_termination, error, actual_bytes_transferred};
assign fifo_read = (mm_response_read == 1) & (fifo_empty == 0) & (mm_response_address == 1) & (mm_response_byteenable[3] == 1); // reading from the upper byte (byte offset 7) pops the fifo
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset),
.sclr (sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
// either actual bytes transfered when address == 0 or {zero padding, early_termination, error[7:0]} when address = 1
assign mm_response_readdata = (mm_response_address == 0)? fifo_output[31:0] : {{23{1'b0}}, fifo_output[40:32]};
assign mm_response_waitrequest = fifo_empty;
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no streaming port so ground all of its outputs
assign src_response_data = 0;
assign src_response_valid = 0;
end
else if (RESPONSE_PORT == 1) // streaming source port used for response data (prefetcher will catch this data)
begin
assign fifo_input = {early_termination_IRQ_mask, error_IRQ_mask, transfer_complete_IRQ_mask, early_termination, error, actual_bytes_transferred};
assign fifo_read = (fifo_empty == 0) & (src_response_ready == 1);
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset | sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
assign src_response_data = {{204{1'b0}}, descriptor_buffer_full, fifo_output}; // zero padding the upper bits, also sending out the descriptor buffer full signal to simplify the throttling in the prefetching master (bit 52)
assign src_response_valid = (fifo_empty == 0);
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount;
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no slave port so ground all of its outputs
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
end
else // no response port so grounding all outputs
begin
assign fifo_input = 0;
assign fifo_output = 0;
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
assign src_response_data = 0;
assign src_response_valid = 0;
assign response_watermark = 0;
assign response_fifo_full = 0;
assign response_fifo_empty = 0;
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/01/2009
This optional block is used for two purposes:
1) Relay response information back to the host typically in ST->MM mode.
This information is 'actual bytes transferred', 'error', and 'early termination'.
2) Relay response and interrupt information back to a prefetching master block
that will write the contents back to memory. Interrupt information is also passed
since the interrupt needs to occur when the prefetching master block overwrites
the descriptor in main memory and not when the event occurs. The host needs to read
the interrupt condition out of memory so it could potentially get out of sync if
the interrupt information wasn't buffered and delayed.
This block has three response port options: MM slave, ST source, and disabled.
When you don't need access to response information (MM->MM or MM->ST) or interrupts in
the case of a prefetching descriptor master then you can safely disable the port.
By disabling the port you will not consume any logic resources or on-chip memory blocks.
When the source port is enabled bit 52 of the data stream represents the "descriptor full"
condition. The descriptor prefetching master can use this signal to perform pipelined reads
without having to worry about flow control (since there is room for an entire descriptor to be
written). This is benefical as apposed to performing descriptor reads, buffering the data, then
writting it out to the descriptor buffer block.
Version 1.0
1.0 - If you attempt to use the wrong response port type you will be issued a warning
but allowed to generate. This is because in some cases you may not need the typical
behavior. For example if you perform MM->MM transfers with some streaming IP between
the read and write masters you still might need access to error bits. Likewise
if you don't enable the streaming sink port while using a descriptor pre-fetching block
you may not care if you get interrupted early and want to use the CSR block for interrupts
instead.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module response_block (
clk,
reset,
mm_response_readdata,
mm_response_read,
mm_response_address,
mm_response_byteenable,
mm_response_waitrequest,
src_response_data,
src_response_valid,
src_response_ready,
sw_reset,
response_watermark,
response_fifo_full,
response_fifo_empty,
done_strobe,
actual_bytes_transferred,
error,
early_termination,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
descriptor_buffer_full
);
parameter RESPONSE_PORT = 0; // when disabled all the outputs will be disconnected by the component wrapper
parameter FIFO_DEPTH = 256; // needs to be double the descriptor FIFO depth
parameter FIFO_DEPTH_LOG2 = 8;
localparam FIFO_WIDTH = (RESPONSE_PORT == 0)? 41 : 51; // when 'RESPONSE_PORT' is 1 then the response port is set to streaming and must pass the interrupt masks as well
input clk;
input reset;
output wire [31:0] mm_response_readdata;
input mm_response_read;
input mm_response_address; // only have 2 addresses
input [3:0] mm_response_byteenable;
output wire mm_response_waitrequest;
output wire [255:0] src_response_data; // not going to use all these bits, the remainder will be grounded
output wire src_response_valid;
input src_response_ready;
input sw_reset;
output wire [15:0] response_watermark;
output wire response_fifo_full;
output wire response_fifo_empty;
input done_strobe;
input [31:0] actual_bytes_transferred;
input [7:0] error;
input early_termination;
// all of these signals are only used the ST source response port since the pre-fetching master component will handle the interrupt generation as apposed to the CSR block
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input descriptor_buffer_full; // handy signal for the prefetching master to use so that it known when to blast a new descriptor into the dispatcher
/* internal signals and registers */
wire [FIFO_DEPTH_LOG2-1:0] fifo_used;
wire fifo_full;
wire fifo_empty;
wire fifo_read;
wire [FIFO_WIDTH-1:0] fifo_input;
wire [FIFO_WIDTH-1:0] fifo_output;
generate
if (RESPONSE_PORT == 0) // slave port used for response data
begin
assign fifo_input = {early_termination, error, actual_bytes_transferred};
assign fifo_read = (mm_response_read == 1) & (fifo_empty == 0) & (mm_response_address == 1) & (mm_response_byteenable[3] == 1); // reading from the upper byte (byte offset 7) pops the fifo
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset),
.sclr (sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
// either actual bytes transfered when address == 0 or {zero padding, early_termination, error[7:0]} when address = 1
assign mm_response_readdata = (mm_response_address == 0)? fifo_output[31:0] : {{23{1'b0}}, fifo_output[40:32]};
assign mm_response_waitrequest = fifo_empty;
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no streaming port so ground all of its outputs
assign src_response_data = 0;
assign src_response_valid = 0;
end
else if (RESPONSE_PORT == 1) // streaming source port used for response data (prefetcher will catch this data)
begin
assign fifo_input = {early_termination_IRQ_mask, error_IRQ_mask, transfer_complete_IRQ_mask, early_termination, error, actual_bytes_transferred};
assign fifo_read = (fifo_empty == 0) & (src_response_ready == 1);
scfifo the_response_FIFO (
.clock (clk),
.aclr (reset | sw_reset),
.data (fifo_input),
.wrreq (done_strobe),
.rdreq (fifo_read),
.q (fifo_output),
.full (fifo_full),
.empty (fifo_empty),
.usedw (fifo_used)
);
defparam the_response_FIFO.lpm_width = FIFO_WIDTH;
defparam the_response_FIFO.lpm_numwords = FIFO_DEPTH;
defparam the_response_FIFO.lpm_widthu = FIFO_DEPTH_LOG2;
defparam the_response_FIFO.lpm_showahead = "ON";
defparam the_response_FIFO.use_eab = "ON";
defparam the_response_FIFO.overflow_checking = "OFF";
defparam the_response_FIFO.underflow_checking = "OFF";
defparam the_response_FIFO.add_ram_output_register = "ON";
defparam the_response_FIFO.lpm_type = "scfifo";
assign src_response_data = {{204{1'b0}}, descriptor_buffer_full, fifo_output}; // zero padding the upper bits, also sending out the descriptor buffer full signal to simplify the throttling in the prefetching master (bit 52)
assign src_response_valid = (fifo_empty == 0);
assign response_watermark = {{(16-(FIFO_DEPTH_LOG2+1)){1'b0}}, fifo_full, fifo_used}; // zero padding plus the 'true used' FIFO amount;
assign response_fifo_full = fifo_full;
assign response_fifo_empty = fifo_empty;
// no slave port so ground all of its outputs
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
end
else // no response port so grounding all outputs
begin
assign fifo_input = 0;
assign fifo_output = 0;
assign mm_response_readdata = 0;
assign mm_response_waitrequest = 0;
assign src_response_data = 0;
assign src_response_valid = 0;
assign response_watermark = 0;
assign response_fifo_full = 0;
assign response_fifo_empty = 0;
end
endgenerate
endmodule
|
// Converts the 256-bit DMA master to the 64-bit PCIe slave
// Doesn't handle any special cases - the GUI validates that the parameters are consistant with our assumptions
module dma_pcie_bridge
(
clk,
reset,
// DMA interface (slave)
dma_address,
dma_read,
dma_readdata,
dma_readdatavalid,
dma_write,
dma_writedata,
dma_burstcount,
dma_byteenable,
dma_waitrequest,
// PCIe interface (master)
pcie_address,
pcie_read,
pcie_readdata,
pcie_readdatavalid,
pcie_write,
pcie_writedata,
pcie_burstcount,
pcie_byteenable,
pcie_waitrequest
);
// Parameters set from the GUI
parameter DMA_WIDTH = 256;
parameter PCIE_WIDTH = 64;
parameter DMA_BURSTCOUNT = 6;
parameter PCIE_BURSTCOUNT = 10;
parameter PCIE_ADDR_WIDTH = 30; // Byte-address width required
parameter ADDR_OFFSET = 0;
// Derived parameters
localparam DMA_WIDTH_BYTES = DMA_WIDTH / 8;
localparam PCIE_WIDTH_BYTES = PCIE_WIDTH / 8;
localparam WIDTH_RATIO = DMA_WIDTH / PCIE_WIDTH;
localparam ADDR_SHIFT = $clog2( WIDTH_RATIO );
localparam DMA_ADDR_WIDTH = PCIE_ADDR_WIDTH - $clog2( DMA_WIDTH_BYTES );
// Global ports
input clk;
input reset;
// DMA slave ports
input [DMA_ADDR_WIDTH-1:0] dma_address;
input dma_read;
output [DMA_WIDTH-1:0 ]dma_readdata;
output dma_readdatavalid;
input dma_write;
input [DMA_WIDTH-1:0] dma_writedata;
input [DMA_BURSTCOUNT-1:0] dma_burstcount;
input [DMA_WIDTH_BYTES-1:0] dma_byteenable;
output dma_waitrequest;
// PCIe master ports
output [31:0] pcie_address;
output pcie_read;
input [PCIE_WIDTH-1:0] pcie_readdata;
input pcie_readdatavalid;
output pcie_write;
output [PCIE_WIDTH-1:0] pcie_writedata;
output [PCIE_BURSTCOUNT-1:0] pcie_burstcount;
output [PCIE_WIDTH_BYTES-1:0] pcie_byteenable;
input pcie_waitrequest;
// Address decoding into byte-address
wire [31:0] dma_byte_address;
assign dma_byte_address = (dma_address * DMA_WIDTH_BYTES);
// Read logic - Buffer the pcie words into a full-sized dma word. The
// last word gets passed through, the first few words are stored
reg [DMA_WIDTH-1:0] r_buffer; // The last PCIE_WIDTH bits are not used and will be swept away
reg [$clog2(WIDTH_RATIO)-1:0] r_wc;
reg [DMA_WIDTH-1:0] r_demux;
wire [DMA_WIDTH-1:0] r_data;
wire r_full;
wire r_waitrequest;
// Full indicates that a full word is ready to be passed on to the DMA
// as soon as the next pcie-word arrives
assign r_full = &r_wc;
// True when a read request is being stalled (not a function of this unit)
assign r_waitrequest = pcie_waitrequest;
// Groups the previously stored words with the next read data on the pcie bus
assign r_data = {pcie_readdata, r_buffer[DMA_WIDTH-PCIE_WIDTH-1:0]};
// Store the first returned words in a buffer, keep track of which word
// we are waiting for in the word counter (r_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
r_wc <= {$clog2(DMA_WIDTH){1'b0}};
r_buffer <= {(DMA_WIDTH){1'b0}};
end
else
begin
r_wc <= pcie_readdatavalid ? (r_wc + 1) : r_wc;
if(pcie_readdatavalid)
r_buffer[ r_wc*PCIE_WIDTH +: PCIE_WIDTH ] <= pcie_readdata;
end
end
// Write logic - First word passes through, last words are registered
// and passed on to the fabric in order. Master is stalled until the
// full write has been completed (in PCIe word sized segments)
reg [$clog2(WIDTH_RATIO)-1:0] w_wc;
wire [PCIE_WIDTH_BYTES-1:0] w_byteenable;
wire [PCIE_WIDTH-1:0] w_writedata;
wire w_waitrequest;
wire w_sent;
// Indicates the successful transfer of a pcie-word to PCIe
assign w_sent = pcie_write && !pcie_waitrequest;
// Select the appropriate word to send downstream
assign w_writedata = dma_writedata[w_wc*PCIE_WIDTH +: PCIE_WIDTH];
assign w_byteenable = dma_byteenable[w_wc*PCIE_WIDTH_BYTES +: PCIE_WIDTH_BYTES];
// True when avalon is waiting, or the full word has not been written
assign w_waitrequest = (pcie_write && !(&w_wc)) || pcie_waitrequest;
// Keep track of which word segment we are sending in the word counter (w_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
w_wc <= {$clog2(DMA_WIDTH){1'b0}};
else
w_wc <= w_sent ? (w_wc + 1) : w_wc;
end
// Shared read/write logic
assign pcie_address = ADDR_OFFSET + dma_byte_address;
assign pcie_read = dma_read;
assign pcie_write = dma_write;
assign pcie_writedata = w_writedata;
assign pcie_burstcount = (dma_burstcount << ADDR_SHIFT);
assign pcie_byteenable = pcie_write ? w_byteenable : dma_byteenable;
assign dma_readdata = r_data;
assign dma_readdatavalid = r_full && pcie_readdatavalid;
assign dma_waitrequest = r_waitrequest || w_waitrequest;
endmodule
|
// Converts the 256-bit DMA master to the 64-bit PCIe slave
// Doesn't handle any special cases - the GUI validates that the parameters are consistant with our assumptions
module dma_pcie_bridge
(
clk,
reset,
// DMA interface (slave)
dma_address,
dma_read,
dma_readdata,
dma_readdatavalid,
dma_write,
dma_writedata,
dma_burstcount,
dma_byteenable,
dma_waitrequest,
// PCIe interface (master)
pcie_address,
pcie_read,
pcie_readdata,
pcie_readdatavalid,
pcie_write,
pcie_writedata,
pcie_burstcount,
pcie_byteenable,
pcie_waitrequest
);
// Parameters set from the GUI
parameter DMA_WIDTH = 256;
parameter PCIE_WIDTH = 64;
parameter DMA_BURSTCOUNT = 6;
parameter PCIE_BURSTCOUNT = 10;
parameter PCIE_ADDR_WIDTH = 30; // Byte-address width required
parameter ADDR_OFFSET = 0;
// Derived parameters
localparam DMA_WIDTH_BYTES = DMA_WIDTH / 8;
localparam PCIE_WIDTH_BYTES = PCIE_WIDTH / 8;
localparam WIDTH_RATIO = DMA_WIDTH / PCIE_WIDTH;
localparam ADDR_SHIFT = $clog2( WIDTH_RATIO );
localparam DMA_ADDR_WIDTH = PCIE_ADDR_WIDTH - $clog2( DMA_WIDTH_BYTES );
// Global ports
input clk;
input reset;
// DMA slave ports
input [DMA_ADDR_WIDTH-1:0] dma_address;
input dma_read;
output [DMA_WIDTH-1:0 ]dma_readdata;
output dma_readdatavalid;
input dma_write;
input [DMA_WIDTH-1:0] dma_writedata;
input [DMA_BURSTCOUNT-1:0] dma_burstcount;
input [DMA_WIDTH_BYTES-1:0] dma_byteenable;
output dma_waitrequest;
// PCIe master ports
output [31:0] pcie_address;
output pcie_read;
input [PCIE_WIDTH-1:0] pcie_readdata;
input pcie_readdatavalid;
output pcie_write;
output [PCIE_WIDTH-1:0] pcie_writedata;
output [PCIE_BURSTCOUNT-1:0] pcie_burstcount;
output [PCIE_WIDTH_BYTES-1:0] pcie_byteenable;
input pcie_waitrequest;
// Address decoding into byte-address
wire [31:0] dma_byte_address;
assign dma_byte_address = (dma_address * DMA_WIDTH_BYTES);
// Read logic - Buffer the pcie words into a full-sized dma word. The
// last word gets passed through, the first few words are stored
reg [DMA_WIDTH-1:0] r_buffer; // The last PCIE_WIDTH bits are not used and will be swept away
reg [$clog2(WIDTH_RATIO)-1:0] r_wc;
reg [DMA_WIDTH-1:0] r_demux;
wire [DMA_WIDTH-1:0] r_data;
wire r_full;
wire r_waitrequest;
// Full indicates that a full word is ready to be passed on to the DMA
// as soon as the next pcie-word arrives
assign r_full = &r_wc;
// True when a read request is being stalled (not a function of this unit)
assign r_waitrequest = pcie_waitrequest;
// Groups the previously stored words with the next read data on the pcie bus
assign r_data = {pcie_readdata, r_buffer[DMA_WIDTH-PCIE_WIDTH-1:0]};
// Store the first returned words in a buffer, keep track of which word
// we are waiting for in the word counter (r_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
r_wc <= {$clog2(DMA_WIDTH){1'b0}};
r_buffer <= {(DMA_WIDTH){1'b0}};
end
else
begin
r_wc <= pcie_readdatavalid ? (r_wc + 1) : r_wc;
if(pcie_readdatavalid)
r_buffer[ r_wc*PCIE_WIDTH +: PCIE_WIDTH ] <= pcie_readdata;
end
end
// Write logic - First word passes through, last words are registered
// and passed on to the fabric in order. Master is stalled until the
// full write has been completed (in PCIe word sized segments)
reg [$clog2(WIDTH_RATIO)-1:0] w_wc;
wire [PCIE_WIDTH_BYTES-1:0] w_byteenable;
wire [PCIE_WIDTH-1:0] w_writedata;
wire w_waitrequest;
wire w_sent;
// Indicates the successful transfer of a pcie-word to PCIe
assign w_sent = pcie_write && !pcie_waitrequest;
// Select the appropriate word to send downstream
assign w_writedata = dma_writedata[w_wc*PCIE_WIDTH +: PCIE_WIDTH];
assign w_byteenable = dma_byteenable[w_wc*PCIE_WIDTH_BYTES +: PCIE_WIDTH_BYTES];
// True when avalon is waiting, or the full word has not been written
assign w_waitrequest = (pcie_write && !(&w_wc)) || pcie_waitrequest;
// Keep track of which word segment we are sending in the word counter (w_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
w_wc <= {$clog2(DMA_WIDTH){1'b0}};
else
w_wc <= w_sent ? (w_wc + 1) : w_wc;
end
// Shared read/write logic
assign pcie_address = ADDR_OFFSET + dma_byte_address;
assign pcie_read = dma_read;
assign pcie_write = dma_write;
assign pcie_writedata = w_writedata;
assign pcie_burstcount = (dma_burstcount << ADDR_SHIFT);
assign pcie_byteenable = pcie_write ? w_byteenable : dma_byteenable;
assign dma_readdata = r_data;
assign dma_readdatavalid = r_full && pcie_readdatavalid;
assign dma_waitrequest = r_waitrequest || w_waitrequest;
endmodule
|
// Converts the 256-bit DMA master to the 64-bit PCIe slave
// Doesn't handle any special cases - the GUI validates that the parameters are consistant with our assumptions
module dma_pcie_bridge
(
clk,
reset,
// DMA interface (slave)
dma_address,
dma_read,
dma_readdata,
dma_readdatavalid,
dma_write,
dma_writedata,
dma_burstcount,
dma_byteenable,
dma_waitrequest,
// PCIe interface (master)
pcie_address,
pcie_read,
pcie_readdata,
pcie_readdatavalid,
pcie_write,
pcie_writedata,
pcie_burstcount,
pcie_byteenable,
pcie_waitrequest
);
// Parameters set from the GUI
parameter DMA_WIDTH = 256;
parameter PCIE_WIDTH = 64;
parameter DMA_BURSTCOUNT = 6;
parameter PCIE_BURSTCOUNT = 10;
parameter PCIE_ADDR_WIDTH = 30; // Byte-address width required
parameter ADDR_OFFSET = 0;
// Derived parameters
localparam DMA_WIDTH_BYTES = DMA_WIDTH / 8;
localparam PCIE_WIDTH_BYTES = PCIE_WIDTH / 8;
localparam WIDTH_RATIO = DMA_WIDTH / PCIE_WIDTH;
localparam ADDR_SHIFT = $clog2( WIDTH_RATIO );
localparam DMA_ADDR_WIDTH = PCIE_ADDR_WIDTH - $clog2( DMA_WIDTH_BYTES );
// Global ports
input clk;
input reset;
// DMA slave ports
input [DMA_ADDR_WIDTH-1:0] dma_address;
input dma_read;
output [DMA_WIDTH-1:0 ]dma_readdata;
output dma_readdatavalid;
input dma_write;
input [DMA_WIDTH-1:0] dma_writedata;
input [DMA_BURSTCOUNT-1:0] dma_burstcount;
input [DMA_WIDTH_BYTES-1:0] dma_byteenable;
output dma_waitrequest;
// PCIe master ports
output [31:0] pcie_address;
output pcie_read;
input [PCIE_WIDTH-1:0] pcie_readdata;
input pcie_readdatavalid;
output pcie_write;
output [PCIE_WIDTH-1:0] pcie_writedata;
output [PCIE_BURSTCOUNT-1:0] pcie_burstcount;
output [PCIE_WIDTH_BYTES-1:0] pcie_byteenable;
input pcie_waitrequest;
// Address decoding into byte-address
wire [31:0] dma_byte_address;
assign dma_byte_address = (dma_address * DMA_WIDTH_BYTES);
// Read logic - Buffer the pcie words into a full-sized dma word. The
// last word gets passed through, the first few words are stored
reg [DMA_WIDTH-1:0] r_buffer; // The last PCIE_WIDTH bits are not used and will be swept away
reg [$clog2(WIDTH_RATIO)-1:0] r_wc;
reg [DMA_WIDTH-1:0] r_demux;
wire [DMA_WIDTH-1:0] r_data;
wire r_full;
wire r_waitrequest;
// Full indicates that a full word is ready to be passed on to the DMA
// as soon as the next pcie-word arrives
assign r_full = &r_wc;
// True when a read request is being stalled (not a function of this unit)
assign r_waitrequest = pcie_waitrequest;
// Groups the previously stored words with the next read data on the pcie bus
assign r_data = {pcie_readdata, r_buffer[DMA_WIDTH-PCIE_WIDTH-1:0]};
// Store the first returned words in a buffer, keep track of which word
// we are waiting for in the word counter (r_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
begin
r_wc <= {$clog2(DMA_WIDTH){1'b0}};
r_buffer <= {(DMA_WIDTH){1'b0}};
end
else
begin
r_wc <= pcie_readdatavalid ? (r_wc + 1) : r_wc;
if(pcie_readdatavalid)
r_buffer[ r_wc*PCIE_WIDTH +: PCIE_WIDTH ] <= pcie_readdata;
end
end
// Write logic - First word passes through, last words are registered
// and passed on to the fabric in order. Master is stalled until the
// full write has been completed (in PCIe word sized segments)
reg [$clog2(WIDTH_RATIO)-1:0] w_wc;
wire [PCIE_WIDTH_BYTES-1:0] w_byteenable;
wire [PCIE_WIDTH-1:0] w_writedata;
wire w_waitrequest;
wire w_sent;
// Indicates the successful transfer of a pcie-word to PCIe
assign w_sent = pcie_write && !pcie_waitrequest;
// Select the appropriate word to send downstream
assign w_writedata = dma_writedata[w_wc*PCIE_WIDTH +: PCIE_WIDTH];
assign w_byteenable = dma_byteenable[w_wc*PCIE_WIDTH_BYTES +: PCIE_WIDTH_BYTES];
// True when avalon is waiting, or the full word has not been written
assign w_waitrequest = (pcie_write && !(&w_wc)) || pcie_waitrequest;
// Keep track of which word segment we are sending in the word counter (w_wc)
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
w_wc <= {$clog2(DMA_WIDTH){1'b0}};
else
w_wc <= w_sent ? (w_wc + 1) : w_wc;
end
// Shared read/write logic
assign pcie_address = ADDR_OFFSET + dma_byte_address;
assign pcie_read = dma_read;
assign pcie_write = dma_write;
assign pcie_writedata = w_writedata;
assign pcie_burstcount = (dma_burstcount << ADDR_SHIFT);
assign pcie_byteenable = pcie_write ? w_byteenable : dma_byteenable;
assign dma_readdata = r_data;
assign dma_readdatavalid = r_full && pcie_readdatavalid;
assign dma_waitrequest = r_waitrequest || w_waitrequest;
endmodule
|
module channel_ram
( // System
input txclk, input reset,
// USB side
input [31:0] datain, input WR, input WR_done, output have_space,
// Reader side
output [31:0] dataout, input RD, input RD_done, output packet_waiting);
reg [6:0] wr_addr, rd_addr;
reg [1:0] which_ram_wr, which_ram_rd;
reg [2:0] nb_packets;
reg [31:0] ram0 [0:127];
reg [31:0] ram1 [0:127];
reg [31:0] ram2 [0:127];
reg [31:0] ram3 [0:127];
reg [31:0] dataout0;
reg [31:0] dataout1;
reg [31:0] dataout2;
reg [31:0] dataout3;
wire wr_done_int;
wire rd_done_int;
wire [6:0] rd_addr_final;
wire [1:0] which_ram_rd_final;
// USB side
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd0)) ram0[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd1)) ram1[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd2)) ram2[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd3)) ram3[wr_addr] <= datain;
assign wr_done_int = ((WR && (wr_addr == 7'd127)) || WR_done);
always @(posedge txclk)
if(reset)
wr_addr <= 0;
else if (WR_done)
wr_addr <= 0;
else if (WR)
wr_addr <= wr_addr + 7'd1;
always @(posedge txclk)
if(reset)
which_ram_wr <= 0;
else if (wr_done_int)
which_ram_wr <= which_ram_wr + 2'd1;
assign have_space = (nb_packets < 3'd3);
// Reader side
// short hand fifo
// rd_addr_final is what rd_addr is going to be next clock cycle
// which_ram_rd_final is what which_ram_rd is going to be next clock cycle
always @(posedge txclk) dataout0 <= ram0[rd_addr_final];
always @(posedge txclk) dataout1 <= ram1[rd_addr_final];
always @(posedge txclk) dataout2 <= ram2[rd_addr_final];
always @(posedge txclk) dataout3 <= ram3[rd_addr_final];
assign dataout = (which_ram_rd_final[1]) ?
(which_ram_rd_final[0] ? dataout3 : dataout2) :
(which_ram_rd_final[0] ? dataout1 : dataout0);
//RD_done is the only way to signal the end of one packet
assign rd_done_int = RD_done;
always @(posedge txclk)
if (reset)
rd_addr <= 0;
else if (RD_done)
rd_addr <= 0;
else if (RD)
rd_addr <= rd_addr + 7'd1;
assign rd_addr_final = (reset|RD_done) ? (6'd0) :
((RD)?(rd_addr+7'd1):rd_addr);
always @(posedge txclk)
if (reset)
which_ram_rd <= 0;
else if (rd_done_int)
which_ram_rd <= which_ram_rd + 2'd1;
assign which_ram_rd_final = (reset) ? (2'd0):
((rd_done_int) ? (which_ram_rd + 2'd1) : which_ram_rd);
//packet_waiting is set to zero if rd_done_int is high
//because there is no guarantee that nb_packets will be pos.
assign packet_waiting = (nb_packets > 1) | ((nb_packets == 1)&(~rd_done_int));
always @(posedge txclk)
if (reset)
nb_packets <= 0;
else if (wr_done_int & ~rd_done_int)
nb_packets <= nb_packets + 3'd1;
else if (rd_done_int & ~wr_done_int)
nb_packets <= nb_packets - 3'd1;
endmodule
|
module channel_ram
( // System
input txclk, input reset,
// USB side
input [31:0] datain, input WR, input WR_done, output have_space,
// Reader side
output [31:0] dataout, input RD, input RD_done, output packet_waiting);
reg [6:0] wr_addr, rd_addr;
reg [1:0] which_ram_wr, which_ram_rd;
reg [2:0] nb_packets;
reg [31:0] ram0 [0:127];
reg [31:0] ram1 [0:127];
reg [31:0] ram2 [0:127];
reg [31:0] ram3 [0:127];
reg [31:0] dataout0;
reg [31:0] dataout1;
reg [31:0] dataout2;
reg [31:0] dataout3;
wire wr_done_int;
wire rd_done_int;
wire [6:0] rd_addr_final;
wire [1:0] which_ram_rd_final;
// USB side
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd0)) ram0[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd1)) ram1[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd2)) ram2[wr_addr] <= datain;
always @(posedge txclk)
if(WR & (which_ram_wr == 2'd3)) ram3[wr_addr] <= datain;
assign wr_done_int = ((WR && (wr_addr == 7'd127)) || WR_done);
always @(posedge txclk)
if(reset)
wr_addr <= 0;
else if (WR_done)
wr_addr <= 0;
else if (WR)
wr_addr <= wr_addr + 7'd1;
always @(posedge txclk)
if(reset)
which_ram_wr <= 0;
else if (wr_done_int)
which_ram_wr <= which_ram_wr + 2'd1;
assign have_space = (nb_packets < 3'd3);
// Reader side
// short hand fifo
// rd_addr_final is what rd_addr is going to be next clock cycle
// which_ram_rd_final is what which_ram_rd is going to be next clock cycle
always @(posedge txclk) dataout0 <= ram0[rd_addr_final];
always @(posedge txclk) dataout1 <= ram1[rd_addr_final];
always @(posedge txclk) dataout2 <= ram2[rd_addr_final];
always @(posedge txclk) dataout3 <= ram3[rd_addr_final];
assign dataout = (which_ram_rd_final[1]) ?
(which_ram_rd_final[0] ? dataout3 : dataout2) :
(which_ram_rd_final[0] ? dataout1 : dataout0);
//RD_done is the only way to signal the end of one packet
assign rd_done_int = RD_done;
always @(posedge txclk)
if (reset)
rd_addr <= 0;
else if (RD_done)
rd_addr <= 0;
else if (RD)
rd_addr <= rd_addr + 7'd1;
assign rd_addr_final = (reset|RD_done) ? (6'd0) :
((RD)?(rd_addr+7'd1):rd_addr);
always @(posedge txclk)
if (reset)
which_ram_rd <= 0;
else if (rd_done_int)
which_ram_rd <= which_ram_rd + 2'd1;
assign which_ram_rd_final = (reset) ? (2'd0):
((rd_done_int) ? (which_ram_rd + 2'd1) : which_ram_rd);
//packet_waiting is set to zero if rd_done_int is high
//because there is no guarantee that nb_packets will be pos.
assign packet_waiting = (nb_packets > 1) | ((nb_packets == 1)&(~rd_done_int));
always @(posedge txclk)
if (reset)
nb_packets <= 0;
else if (wr_done_int & ~rd_done_int)
nb_packets <= nb_packets + 3'd1;
else if (rd_done_int & ~wr_done_int)
nb_packets <= nb_packets - 3'd1;
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized Mux using MUXF7/8.
// Any generic_baseblocks_v2_1_0_mux ratio.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
// mux_enc
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_mux_enc #
(
parameter C_FAMILY = "rtl",
// FPGA Family. Current version: virtex6 or spartan6.
parameter integer C_RATIO = 4,
// Mux select ratio. Can be any binary value (>= 1)
parameter integer C_SEL_WIDTH = 2,
// Log2-ceiling of C_RATIO (>= 1)
parameter integer C_DATA_WIDTH = 1
// Data width for generic_baseblocks_v2_1_0_comparator (>= 1)
)
(
input wire [C_SEL_WIDTH-1:0] S,
input wire [C_RATIO*C_DATA_WIDTH-1:0] A,
output wire [C_DATA_WIDTH-1:0] O,
input wire OE
);
wire [C_DATA_WIDTH-1:0] o_i;
genvar bit_cnt;
function [C_DATA_WIDTH-1:0] f_mux
(
input [C_SEL_WIDTH-1:0] s,
input [C_RATIO*C_DATA_WIDTH-1:0] a
);
integer i;
reg [C_RATIO*C_DATA_WIDTH-1:0] carry;
begin
carry[C_DATA_WIDTH-1:0] = {C_DATA_WIDTH{(s==0)?1'b1:1'b0}} & a[C_DATA_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_enc
carry[i*C_DATA_WIDTH +: C_DATA_WIDTH] =
carry[(i-1)*C_DATA_WIDTH +: C_DATA_WIDTH] |
({C_DATA_WIDTH{(s==i)?1'b1:1'b0}} & a[i*C_DATA_WIDTH +: C_DATA_WIDTH]);
end
f_mux = carry[C_DATA_WIDTH*C_RATIO-1:C_DATA_WIDTH*(C_RATIO-1)];
end
endfunction
function [C_DATA_WIDTH-1:0] f_mux4
(
input [1:0] s,
input [4*C_DATA_WIDTH-1:0] a
);
integer i;
reg [4*C_DATA_WIDTH-1:0] carry;
begin
carry[C_DATA_WIDTH-1:0] = {C_DATA_WIDTH{(s==0)?1'b1:1'b0}} & a[C_DATA_WIDTH-1:0];
for (i=1;i<4;i=i+1) begin : gen_carrychain_enc
carry[i*C_DATA_WIDTH +: C_DATA_WIDTH] =
carry[(i-1)*C_DATA_WIDTH +: C_DATA_WIDTH] |
({C_DATA_WIDTH{(s==i)?1'b1:1'b0}} & a[i*C_DATA_WIDTH +: C_DATA_WIDTH]);
end
f_mux4 = carry[C_DATA_WIDTH*4-1:C_DATA_WIDTH*3];
end
endfunction
assign O = o_i & {C_DATA_WIDTH{OE}}; // OE is gated AFTER any MUXF7/8 (can only optimize forward into downstream logic)
generate
if ( C_RATIO < 2 ) begin : gen_bypass
assign o_i = A;
end else if ( C_FAMILY == "rtl" || C_RATIO < 5 ) begin : gen_rtl
assign o_i = f_mux(S, A);
end else begin : gen_fpga
wire [C_DATA_WIDTH-1:0] l;
wire [C_DATA_WIDTH-1:0] h;
wire [C_DATA_WIDTH-1:0] ll;
wire [C_DATA_WIDTH-1:0] lh;
wire [C_DATA_WIDTH-1:0] hl;
wire [C_DATA_WIDTH-1:0] hh;
case (C_RATIO)
1, 5, 9, 13:
assign hh = A[(C_RATIO-1)*C_DATA_WIDTH +: C_DATA_WIDTH];
2, 6, 10, 14:
assign hh = S[0] ?
A[(C_RATIO-1)*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[(C_RATIO-2)*C_DATA_WIDTH +: C_DATA_WIDTH] ;
3, 7, 11, 15:
assign hh = S[1] ?
A[(C_RATIO-1)*C_DATA_WIDTH +: C_DATA_WIDTH] :
(S[0] ?
A[(C_RATIO-2)*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[(C_RATIO-3)*C_DATA_WIDTH +: C_DATA_WIDTH] );
4, 8, 12, 16:
assign hh = S[1] ?
(S[0] ?
A[(C_RATIO-1)*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[(C_RATIO-2)*C_DATA_WIDTH +: C_DATA_WIDTH] ) :
(S[0] ?
A[(C_RATIO-3)*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[(C_RATIO-4)*C_DATA_WIDTH +: C_DATA_WIDTH] );
17:
assign hh = S[1] ?
(S[0] ?
A[15*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[14*C_DATA_WIDTH +: C_DATA_WIDTH] ) :
(S[0] ?
A[13*C_DATA_WIDTH +: C_DATA_WIDTH] :
A[12*C_DATA_WIDTH +: C_DATA_WIDTH] );
default:
assign hh = 0;
endcase
case (C_RATIO)
5, 6, 7, 8: begin
assign l = f_mux4(S[1:0], A[0 +: 4*C_DATA_WIDTH]);
for (bit_cnt = 0; bit_cnt < C_DATA_WIDTH ; bit_cnt = bit_cnt + 1) begin : gen_mux_5_8
MUXF7 mux_s2_inst
(
.I0 (l[bit_cnt]),
.I1 (hh[bit_cnt]),
.S (S[2]),
.O (o_i[bit_cnt])
);
end
end
9, 10, 11, 12: begin
assign ll = f_mux4(S[1:0], A[0 +: 4*C_DATA_WIDTH]);
assign lh = f_mux4(S[1:0], A[4*C_DATA_WIDTH +: 4*C_DATA_WIDTH]);
for (bit_cnt = 0; bit_cnt < C_DATA_WIDTH ; bit_cnt = bit_cnt + 1) begin : gen_mux_9_12
MUXF7 muxf_s2_low_inst
(
.I0 (ll[bit_cnt]),
.I1 (lh[bit_cnt]),
.S (S[2]),
.O (l[bit_cnt])
);
MUXF8 muxf_s3_inst
(
.I0 (l[bit_cnt]),
.I1 (hh[bit_cnt]),
.S (S[3]),
.O (o_i[bit_cnt])
);
end
end
13,14,15,16: begin
assign ll = f_mux4(S[1:0], A[0 +: 4*C_DATA_WIDTH]);
assign lh = f_mux4(S[1:0], A[4*C_DATA_WIDTH +: 4*C_DATA_WIDTH]);
assign hl = f_mux4(S[1:0], A[8*C_DATA_WIDTH +: 4*C_DATA_WIDTH]);
for (bit_cnt = 0; bit_cnt < C_DATA_WIDTH ; bit_cnt = bit_cnt + 1) begin : gen_mux_13_16
MUXF7 muxf_s2_low_inst
(
.I0 (ll[bit_cnt]),
.I1 (lh[bit_cnt]),
.S (S[2]),
.O (l[bit_cnt])
);
MUXF7 muxf_s2_hi_inst
(
.I0 (hl[bit_cnt]),
.I1 (hh[bit_cnt]),
.S (S[2]),
.O (h[bit_cnt])
);
MUXF8 muxf_s3_inst
(
.I0 (l[bit_cnt]),
.I1 (h[bit_cnt]),
.S (S[3]),
.O (o_i[bit_cnt])
);
end
end
17: begin
assign ll = S[4] ? A[16*C_DATA_WIDTH +: C_DATA_WIDTH] : f_mux4(S[1:0], A[0 +: 4*C_DATA_WIDTH]); // 5-input mux
assign lh = f_mux4(S[1:0], A[4*C_DATA_WIDTH +: 4*C_DATA_WIDTH]);
assign hl = f_mux4(S[1:0], A[8*C_DATA_WIDTH +: 4*C_DATA_WIDTH]);
for (bit_cnt = 0; bit_cnt < C_DATA_WIDTH ; bit_cnt = bit_cnt + 1) begin : gen_mux_17
MUXF7 muxf_s2_low_inst
(
.I0 (ll[bit_cnt]),
.I1 (lh[bit_cnt]),
.S (S[2]),
.O (l[bit_cnt])
);
MUXF7 muxf_s2_hi_inst
(
.I0 (hl[bit_cnt]),
.I1 (hh[bit_cnt]),
.S (S[2]),
.O (h[bit_cnt])
);
MUXF8 muxf_s3_inst
(
.I0 (l[bit_cnt]),
.I1 (h[bit_cnt]),
.S (S[3]),
.O (o_i[bit_cnt])
);
end
end
default: // If RATIO > 17, use RTL
assign o_i = f_mux(S, A);
endcase
end // gen_fpga
endgenerate
endmodule
|
// megafunction wizard: %ALTTEMP_SENSE%
// GENERATION: STANDARD
// VERSION: WM1.0
// MODULE: ALTTEMP_SENSE
// ============================================================
// File Name: temp_sense.v
// Megafunction Name(s):
// ALTTEMP_SENSE
//
// Simulation Library Files(s):
//
// ============================================================
// ************************************************************
// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
//
// 12.0 Build 263 08/02/2012 SP 2 SJ Full Version
// ************************************************************
//Copyright (C) 1991-2012 Altera Corporation
//Your use of Altera Corporation's design tools, logic functions
//and other software and tools, and its AMPP partner logic
//functions, and any output files from any of the foregoing
//(including device programming or simulation files), and any
//associated documentation or information are expressly subject
//to the terms and conditions of the Altera Program License
//Subscription Agreement, Altera MegaCore Function License
//Agreement, or other applicable license agreement, including,
//without limitation, that your use is for the sole purpose of
//programming logic devices manufactured by Altera and sold by
//Altera or its authorized distributors. Please refer to the
//applicable agreement for further details.
//alttemp_sense CBX_AUTO_BLACKBOX="ALL" CLK_FREQUENCY="50.0" CLOCK_DIVIDER_ENABLE="on" CLOCK_DIVIDER_VALUE=80 DEVICE_FAMILY="Stratix V" NUMBER_OF_SAMPLES=128 POI_CAL_TEMPERATURE=85 SIM_TSDCALO=0 USE_WYS="on" USER_OFFSET_ENABLE="off" ce clk clr tsdcaldone tsdcalo ALTERA_INTERNAL_OPTIONS=SUPPRESS_DA_RULE_INTERNAL=C106
//VERSION_BEGIN 12.0SP2 cbx_alttemp_sense 2012:08:02:15:11:11:SJ cbx_cycloneii 2012:08:02:15:11:11:SJ cbx_lpm_add_sub 2012:08:02:15:11:11:SJ cbx_lpm_compare 2012:08:02:15:11:11:SJ cbx_lpm_counter 2012:08:02:15:11:11:SJ cbx_lpm_decode 2012:08:02:15:11:11:SJ cbx_mgl 2012:08:02:15:40:54:SJ cbx_stratix 2012:08:02:15:11:11:SJ cbx_stratixii 2012:08:02:15:11:11:SJ cbx_stratixiii 2012:08:02:15:11:11:SJ cbx_stratixv 2012:08:02:15:11:11:SJ VERSION_END
// synthesis VERILOG_INPUT_VERSION VERILOG_2001
// altera message_off 10463
//synthesis_resources = stratixv_tsdblock 1
//synopsys translate_off
`timescale 1 ps / 1 ps
//synopsys translate_on
(* ALTERA_ATTRIBUTE = {"SUPPRESS_DA_RULE_INTERNAL=C106"} *)
module temp_sense_alttemp_sense_v8t
(
ce,
clk,
clr,
tsdcaldone,
tsdcalo) /* synthesis synthesis_clearbox=2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_off
`endif
tri1 ce;
tri0 clr;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_on
`endif
wire wire_sd1_tsdcaldone;
wire [7:0] wire_sd1_tsdcalo;
stratixv_tsdblock sd1
(
.ce(ce),
.clk(clk),
.clr(clr),
.tsdcaldone(wire_sd1_tsdcaldone),
.tsdcalo(wire_sd1_tsdcalo));
defparam
sd1.clock_divider_enable = "true",
sd1.clock_divider_value = 80,
sd1.sim_tsdcalo = 0,
sd1.lpm_type = "stratixv_tsdblock";
assign
tsdcaldone = wire_sd1_tsdcaldone,
tsdcalo = wire_sd1_tsdcalo;
endmodule //temp_sense_alttemp_sense_v8t
//VALID FILE
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
module temp_sense (
ce,
clk,
clr,
tsdcaldone,
tsdcalo)/* synthesis synthesis_clearbox = 2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
wire [7:0] sub_wire0;
wire sub_wire1;
wire [7:0] tsdcalo = sub_wire0[7:0];
wire tsdcaldone = sub_wire1;
temp_sense_alttemp_sense_v8t temp_sense_alttemp_sense_v8t_component (
.ce (ce),
.clk (clk),
.clr (clr),
.tsdcalo (sub_wire0),
.tsdcaldone (sub_wire1))/* synthesis synthesis_clearbox=2
clearbox_macroname = ALTTEMP_SENSE
clearbox_defparam = "clk_frequency=50.0;clock_divider_enable=ON;clock_divider_value=80;intended_device_family=Stratix V;lpm_hint=UNUSED;lpm_type=alttemp_sense;number_of_samples=128;poi_cal_temperature=85;sim_tsdcalo=0;user_offset_enable=off;use_wys=on;" */;
endmodule
// ============================================================
// CNX file retrieval info
// ============================================================
// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
// Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: CLK_FREQUENCY STRING "50.0"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_ENABLE STRING "ON"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_VALUE NUMERIC "80"
// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: LPM_HINT STRING "UNUSED"
// Retrieval info: CONSTANT: LPM_TYPE STRING "alttemp_sense"
// Retrieval info: CONSTANT: NUMBER_OF_SAMPLES NUMERIC "128"
// Retrieval info: CONSTANT: POI_CAL_TEMPERATURE NUMERIC "85"
// Retrieval info: CONSTANT: SIM_TSDCALO NUMERIC "0"
// Retrieval info: CONSTANT: USER_OFFSET_ENABLE STRING "off"
// Retrieval info: CONSTANT: USE_WYS STRING "on"
// Retrieval info: USED_PORT: ce 0 0 0 0 INPUT NODEFVAL "ce"
// Retrieval info: CONNECT: @ce 0 0 0 0 ce 0 0 0 0
// Retrieval info: USED_PORT: clk 0 0 0 0 INPUT NODEFVAL "clk"
// Retrieval info: CONNECT: @clk 0 0 0 0 clk 0 0 0 0
// Retrieval info: USED_PORT: clr 0 0 0 0 INPUT NODEFVAL "clr"
// Retrieval info: CONNECT: @clr 0 0 0 0 clr 0 0 0 0
// Retrieval info: USED_PORT: tsdcaldone 0 0 0 0 OUTPUT NODEFVAL "tsdcaldone"
// Retrieval info: CONNECT: tsdcaldone 0 0 0 0 @tsdcaldone 0 0 0 0
// Retrieval info: USED_PORT: tsdcalo 0 0 8 0 OUTPUT NODEFVAL "tsdcalo[7..0]"
// Retrieval info: CONNECT: tsdcalo 0 0 8 0 @tsdcalo 0 0 8 0
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.v TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.qip TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.bsf FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_inst.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_bb.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.inc FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.cmp FALSE TRUE
|
// megafunction wizard: %ALTTEMP_SENSE%
// GENERATION: STANDARD
// VERSION: WM1.0
// MODULE: ALTTEMP_SENSE
// ============================================================
// File Name: temp_sense.v
// Megafunction Name(s):
// ALTTEMP_SENSE
//
// Simulation Library Files(s):
//
// ============================================================
// ************************************************************
// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
//
// 12.0 Build 263 08/02/2012 SP 2 SJ Full Version
// ************************************************************
//Copyright (C) 1991-2012 Altera Corporation
//Your use of Altera Corporation's design tools, logic functions
//and other software and tools, and its AMPP partner logic
//functions, and any output files from any of the foregoing
//(including device programming or simulation files), and any
//associated documentation or information are expressly subject
//to the terms and conditions of the Altera Program License
//Subscription Agreement, Altera MegaCore Function License
//Agreement, or other applicable license agreement, including,
//without limitation, that your use is for the sole purpose of
//programming logic devices manufactured by Altera and sold by
//Altera or its authorized distributors. Please refer to the
//applicable agreement for further details.
//alttemp_sense CBX_AUTO_BLACKBOX="ALL" CLK_FREQUENCY="50.0" CLOCK_DIVIDER_ENABLE="on" CLOCK_DIVIDER_VALUE=80 DEVICE_FAMILY="Stratix V" NUMBER_OF_SAMPLES=128 POI_CAL_TEMPERATURE=85 SIM_TSDCALO=0 USE_WYS="on" USER_OFFSET_ENABLE="off" ce clk clr tsdcaldone tsdcalo ALTERA_INTERNAL_OPTIONS=SUPPRESS_DA_RULE_INTERNAL=C106
//VERSION_BEGIN 12.0SP2 cbx_alttemp_sense 2012:08:02:15:11:11:SJ cbx_cycloneii 2012:08:02:15:11:11:SJ cbx_lpm_add_sub 2012:08:02:15:11:11:SJ cbx_lpm_compare 2012:08:02:15:11:11:SJ cbx_lpm_counter 2012:08:02:15:11:11:SJ cbx_lpm_decode 2012:08:02:15:11:11:SJ cbx_mgl 2012:08:02:15:40:54:SJ cbx_stratix 2012:08:02:15:11:11:SJ cbx_stratixii 2012:08:02:15:11:11:SJ cbx_stratixiii 2012:08:02:15:11:11:SJ cbx_stratixv 2012:08:02:15:11:11:SJ VERSION_END
// synthesis VERILOG_INPUT_VERSION VERILOG_2001
// altera message_off 10463
//synthesis_resources = stratixv_tsdblock 1
//synopsys translate_off
`timescale 1 ps / 1 ps
//synopsys translate_on
(* ALTERA_ATTRIBUTE = {"SUPPRESS_DA_RULE_INTERNAL=C106"} *)
module temp_sense_alttemp_sense_v8t
(
ce,
clk,
clr,
tsdcaldone,
tsdcalo) /* synthesis synthesis_clearbox=2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_off
`endif
tri1 ce;
tri0 clr;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_on
`endif
wire wire_sd1_tsdcaldone;
wire [7:0] wire_sd1_tsdcalo;
stratixv_tsdblock sd1
(
.ce(ce),
.clk(clk),
.clr(clr),
.tsdcaldone(wire_sd1_tsdcaldone),
.tsdcalo(wire_sd1_tsdcalo));
defparam
sd1.clock_divider_enable = "true",
sd1.clock_divider_value = 80,
sd1.sim_tsdcalo = 0,
sd1.lpm_type = "stratixv_tsdblock";
assign
tsdcaldone = wire_sd1_tsdcaldone,
tsdcalo = wire_sd1_tsdcalo;
endmodule //temp_sense_alttemp_sense_v8t
//VALID FILE
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
module temp_sense (
ce,
clk,
clr,
tsdcaldone,
tsdcalo)/* synthesis synthesis_clearbox = 2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
wire [7:0] sub_wire0;
wire sub_wire1;
wire [7:0] tsdcalo = sub_wire0[7:0];
wire tsdcaldone = sub_wire1;
temp_sense_alttemp_sense_v8t temp_sense_alttemp_sense_v8t_component (
.ce (ce),
.clk (clk),
.clr (clr),
.tsdcalo (sub_wire0),
.tsdcaldone (sub_wire1))/* synthesis synthesis_clearbox=2
clearbox_macroname = ALTTEMP_SENSE
clearbox_defparam = "clk_frequency=50.0;clock_divider_enable=ON;clock_divider_value=80;intended_device_family=Stratix V;lpm_hint=UNUSED;lpm_type=alttemp_sense;number_of_samples=128;poi_cal_temperature=85;sim_tsdcalo=0;user_offset_enable=off;use_wys=on;" */;
endmodule
// ============================================================
// CNX file retrieval info
// ============================================================
// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
// Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: CLK_FREQUENCY STRING "50.0"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_ENABLE STRING "ON"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_VALUE NUMERIC "80"
// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: LPM_HINT STRING "UNUSED"
// Retrieval info: CONSTANT: LPM_TYPE STRING "alttemp_sense"
// Retrieval info: CONSTANT: NUMBER_OF_SAMPLES NUMERIC "128"
// Retrieval info: CONSTANT: POI_CAL_TEMPERATURE NUMERIC "85"
// Retrieval info: CONSTANT: SIM_TSDCALO NUMERIC "0"
// Retrieval info: CONSTANT: USER_OFFSET_ENABLE STRING "off"
// Retrieval info: CONSTANT: USE_WYS STRING "on"
// Retrieval info: USED_PORT: ce 0 0 0 0 INPUT NODEFVAL "ce"
// Retrieval info: CONNECT: @ce 0 0 0 0 ce 0 0 0 0
// Retrieval info: USED_PORT: clk 0 0 0 0 INPUT NODEFVAL "clk"
// Retrieval info: CONNECT: @clk 0 0 0 0 clk 0 0 0 0
// Retrieval info: USED_PORT: clr 0 0 0 0 INPUT NODEFVAL "clr"
// Retrieval info: CONNECT: @clr 0 0 0 0 clr 0 0 0 0
// Retrieval info: USED_PORT: tsdcaldone 0 0 0 0 OUTPUT NODEFVAL "tsdcaldone"
// Retrieval info: CONNECT: tsdcaldone 0 0 0 0 @tsdcaldone 0 0 0 0
// Retrieval info: USED_PORT: tsdcalo 0 0 8 0 OUTPUT NODEFVAL "tsdcalo[7..0]"
// Retrieval info: CONNECT: tsdcalo 0 0 8 0 @tsdcalo 0 0 8 0
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.v TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.qip TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.bsf FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_inst.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_bb.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.inc FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.cmp FALSE TRUE
|
// megafunction wizard: %ALTTEMP_SENSE%
// GENERATION: STANDARD
// VERSION: WM1.0
// MODULE: ALTTEMP_SENSE
// ============================================================
// File Name: temp_sense.v
// Megafunction Name(s):
// ALTTEMP_SENSE
//
// Simulation Library Files(s):
//
// ============================================================
// ************************************************************
// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
//
// 12.0 Build 263 08/02/2012 SP 2 SJ Full Version
// ************************************************************
//Copyright (C) 1991-2012 Altera Corporation
//Your use of Altera Corporation's design tools, logic functions
//and other software and tools, and its AMPP partner logic
//functions, and any output files from any of the foregoing
//(including device programming or simulation files), and any
//associated documentation or information are expressly subject
//to the terms and conditions of the Altera Program License
//Subscription Agreement, Altera MegaCore Function License
//Agreement, or other applicable license agreement, including,
//without limitation, that your use is for the sole purpose of
//programming logic devices manufactured by Altera and sold by
//Altera or its authorized distributors. Please refer to the
//applicable agreement for further details.
//alttemp_sense CBX_AUTO_BLACKBOX="ALL" CLK_FREQUENCY="50.0" CLOCK_DIVIDER_ENABLE="on" CLOCK_DIVIDER_VALUE=80 DEVICE_FAMILY="Stratix V" NUMBER_OF_SAMPLES=128 POI_CAL_TEMPERATURE=85 SIM_TSDCALO=0 USE_WYS="on" USER_OFFSET_ENABLE="off" ce clk clr tsdcaldone tsdcalo ALTERA_INTERNAL_OPTIONS=SUPPRESS_DA_RULE_INTERNAL=C106
//VERSION_BEGIN 12.0SP2 cbx_alttemp_sense 2012:08:02:15:11:11:SJ cbx_cycloneii 2012:08:02:15:11:11:SJ cbx_lpm_add_sub 2012:08:02:15:11:11:SJ cbx_lpm_compare 2012:08:02:15:11:11:SJ cbx_lpm_counter 2012:08:02:15:11:11:SJ cbx_lpm_decode 2012:08:02:15:11:11:SJ cbx_mgl 2012:08:02:15:40:54:SJ cbx_stratix 2012:08:02:15:11:11:SJ cbx_stratixii 2012:08:02:15:11:11:SJ cbx_stratixiii 2012:08:02:15:11:11:SJ cbx_stratixv 2012:08:02:15:11:11:SJ VERSION_END
// synthesis VERILOG_INPUT_VERSION VERILOG_2001
// altera message_off 10463
//synthesis_resources = stratixv_tsdblock 1
//synopsys translate_off
`timescale 1 ps / 1 ps
//synopsys translate_on
(* ALTERA_ATTRIBUTE = {"SUPPRESS_DA_RULE_INTERNAL=C106"} *)
module temp_sense_alttemp_sense_v8t
(
ce,
clk,
clr,
tsdcaldone,
tsdcalo) /* synthesis synthesis_clearbox=2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_off
`endif
tri1 ce;
tri0 clr;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_on
`endif
wire wire_sd1_tsdcaldone;
wire [7:0] wire_sd1_tsdcalo;
stratixv_tsdblock sd1
(
.ce(ce),
.clk(clk),
.clr(clr),
.tsdcaldone(wire_sd1_tsdcaldone),
.tsdcalo(wire_sd1_tsdcalo));
defparam
sd1.clock_divider_enable = "true",
sd1.clock_divider_value = 80,
sd1.sim_tsdcalo = 0,
sd1.lpm_type = "stratixv_tsdblock";
assign
tsdcaldone = wire_sd1_tsdcaldone,
tsdcalo = wire_sd1_tsdcalo;
endmodule //temp_sense_alttemp_sense_v8t
//VALID FILE
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
module temp_sense (
ce,
clk,
clr,
tsdcaldone,
tsdcalo)/* synthesis synthesis_clearbox = 2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
wire [7:0] sub_wire0;
wire sub_wire1;
wire [7:0] tsdcalo = sub_wire0[7:0];
wire tsdcaldone = sub_wire1;
temp_sense_alttemp_sense_v8t temp_sense_alttemp_sense_v8t_component (
.ce (ce),
.clk (clk),
.clr (clr),
.tsdcalo (sub_wire0),
.tsdcaldone (sub_wire1))/* synthesis synthesis_clearbox=2
clearbox_macroname = ALTTEMP_SENSE
clearbox_defparam = "clk_frequency=50.0;clock_divider_enable=ON;clock_divider_value=80;intended_device_family=Stratix V;lpm_hint=UNUSED;lpm_type=alttemp_sense;number_of_samples=128;poi_cal_temperature=85;sim_tsdcalo=0;user_offset_enable=off;use_wys=on;" */;
endmodule
// ============================================================
// CNX file retrieval info
// ============================================================
// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
// Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: CLK_FREQUENCY STRING "50.0"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_ENABLE STRING "ON"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_VALUE NUMERIC "80"
// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: LPM_HINT STRING "UNUSED"
// Retrieval info: CONSTANT: LPM_TYPE STRING "alttemp_sense"
// Retrieval info: CONSTANT: NUMBER_OF_SAMPLES NUMERIC "128"
// Retrieval info: CONSTANT: POI_CAL_TEMPERATURE NUMERIC "85"
// Retrieval info: CONSTANT: SIM_TSDCALO NUMERIC "0"
// Retrieval info: CONSTANT: USER_OFFSET_ENABLE STRING "off"
// Retrieval info: CONSTANT: USE_WYS STRING "on"
// Retrieval info: USED_PORT: ce 0 0 0 0 INPUT NODEFVAL "ce"
// Retrieval info: CONNECT: @ce 0 0 0 0 ce 0 0 0 0
// Retrieval info: USED_PORT: clk 0 0 0 0 INPUT NODEFVAL "clk"
// Retrieval info: CONNECT: @clk 0 0 0 0 clk 0 0 0 0
// Retrieval info: USED_PORT: clr 0 0 0 0 INPUT NODEFVAL "clr"
// Retrieval info: CONNECT: @clr 0 0 0 0 clr 0 0 0 0
// Retrieval info: USED_PORT: tsdcaldone 0 0 0 0 OUTPUT NODEFVAL "tsdcaldone"
// Retrieval info: CONNECT: tsdcaldone 0 0 0 0 @tsdcaldone 0 0 0 0
// Retrieval info: USED_PORT: tsdcalo 0 0 8 0 OUTPUT NODEFVAL "tsdcalo[7..0]"
// Retrieval info: CONNECT: tsdcalo 0 0 8 0 @tsdcalo 0 0 8 0
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.v TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.qip TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.bsf FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_inst.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_bb.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.inc FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.cmp FALSE TRUE
|
// megafunction wizard: %ALTTEMP_SENSE%
// GENERATION: STANDARD
// VERSION: WM1.0
// MODULE: ALTTEMP_SENSE
// ============================================================
// File Name: temp_sense.v
// Megafunction Name(s):
// ALTTEMP_SENSE
//
// Simulation Library Files(s):
//
// ============================================================
// ************************************************************
// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
//
// 12.0 Build 263 08/02/2012 SP 2 SJ Full Version
// ************************************************************
//Copyright (C) 1991-2012 Altera Corporation
//Your use of Altera Corporation's design tools, logic functions
//and other software and tools, and its AMPP partner logic
//functions, and any output files from any of the foregoing
//(including device programming or simulation files), and any
//associated documentation or information are expressly subject
//to the terms and conditions of the Altera Program License
//Subscription Agreement, Altera MegaCore Function License
//Agreement, or other applicable license agreement, including,
//without limitation, that your use is for the sole purpose of
//programming logic devices manufactured by Altera and sold by
//Altera or its authorized distributors. Please refer to the
//applicable agreement for further details.
//alttemp_sense CBX_AUTO_BLACKBOX="ALL" CLK_FREQUENCY="50.0" CLOCK_DIVIDER_ENABLE="on" CLOCK_DIVIDER_VALUE=80 DEVICE_FAMILY="Stratix V" NUMBER_OF_SAMPLES=128 POI_CAL_TEMPERATURE=85 SIM_TSDCALO=0 USE_WYS="on" USER_OFFSET_ENABLE="off" ce clk clr tsdcaldone tsdcalo ALTERA_INTERNAL_OPTIONS=SUPPRESS_DA_RULE_INTERNAL=C106
//VERSION_BEGIN 12.0SP2 cbx_alttemp_sense 2012:08:02:15:11:11:SJ cbx_cycloneii 2012:08:02:15:11:11:SJ cbx_lpm_add_sub 2012:08:02:15:11:11:SJ cbx_lpm_compare 2012:08:02:15:11:11:SJ cbx_lpm_counter 2012:08:02:15:11:11:SJ cbx_lpm_decode 2012:08:02:15:11:11:SJ cbx_mgl 2012:08:02:15:40:54:SJ cbx_stratix 2012:08:02:15:11:11:SJ cbx_stratixii 2012:08:02:15:11:11:SJ cbx_stratixiii 2012:08:02:15:11:11:SJ cbx_stratixv 2012:08:02:15:11:11:SJ VERSION_END
// synthesis VERILOG_INPUT_VERSION VERILOG_2001
// altera message_off 10463
//synthesis_resources = stratixv_tsdblock 1
//synopsys translate_off
`timescale 1 ps / 1 ps
//synopsys translate_on
(* ALTERA_ATTRIBUTE = {"SUPPRESS_DA_RULE_INTERNAL=C106"} *)
module temp_sense_alttemp_sense_v8t
(
ce,
clk,
clr,
tsdcaldone,
tsdcalo) /* synthesis synthesis_clearbox=2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_off
`endif
tri1 ce;
tri0 clr;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_on
`endif
wire wire_sd1_tsdcaldone;
wire [7:0] wire_sd1_tsdcalo;
stratixv_tsdblock sd1
(
.ce(ce),
.clk(clk),
.clr(clr),
.tsdcaldone(wire_sd1_tsdcaldone),
.tsdcalo(wire_sd1_tsdcalo));
defparam
sd1.clock_divider_enable = "true",
sd1.clock_divider_value = 80,
sd1.sim_tsdcalo = 0,
sd1.lpm_type = "stratixv_tsdblock";
assign
tsdcaldone = wire_sd1_tsdcaldone,
tsdcalo = wire_sd1_tsdcalo;
endmodule //temp_sense_alttemp_sense_v8t
//VALID FILE
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
module temp_sense (
ce,
clk,
clr,
tsdcaldone,
tsdcalo)/* synthesis synthesis_clearbox = 2 */;
input ce;
input clk;
input clr;
output tsdcaldone;
output [7:0] tsdcalo;
wire [7:0] sub_wire0;
wire sub_wire1;
wire [7:0] tsdcalo = sub_wire0[7:0];
wire tsdcaldone = sub_wire1;
temp_sense_alttemp_sense_v8t temp_sense_alttemp_sense_v8t_component (
.ce (ce),
.clk (clk),
.clr (clr),
.tsdcalo (sub_wire0),
.tsdcaldone (sub_wire1))/* synthesis synthesis_clearbox=2
clearbox_macroname = ALTTEMP_SENSE
clearbox_defparam = "clk_frequency=50.0;clock_divider_enable=ON;clock_divider_value=80;intended_device_family=Stratix V;lpm_hint=UNUSED;lpm_type=alttemp_sense;number_of_samples=128;poi_cal_temperature=85;sim_tsdcalo=0;user_offset_enable=off;use_wys=on;" */;
endmodule
// ============================================================
// CNX file retrieval info
// ============================================================
// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
// Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: CLK_FREQUENCY STRING "50.0"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_ENABLE STRING "ON"
// Retrieval info: CONSTANT: CLOCK_DIVIDER_VALUE NUMERIC "80"
// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Stratix V"
// Retrieval info: CONSTANT: LPM_HINT STRING "UNUSED"
// Retrieval info: CONSTANT: LPM_TYPE STRING "alttemp_sense"
// Retrieval info: CONSTANT: NUMBER_OF_SAMPLES NUMERIC "128"
// Retrieval info: CONSTANT: POI_CAL_TEMPERATURE NUMERIC "85"
// Retrieval info: CONSTANT: SIM_TSDCALO NUMERIC "0"
// Retrieval info: CONSTANT: USER_OFFSET_ENABLE STRING "off"
// Retrieval info: CONSTANT: USE_WYS STRING "on"
// Retrieval info: USED_PORT: ce 0 0 0 0 INPUT NODEFVAL "ce"
// Retrieval info: CONNECT: @ce 0 0 0 0 ce 0 0 0 0
// Retrieval info: USED_PORT: clk 0 0 0 0 INPUT NODEFVAL "clk"
// Retrieval info: CONNECT: @clk 0 0 0 0 clk 0 0 0 0
// Retrieval info: USED_PORT: clr 0 0 0 0 INPUT NODEFVAL "clr"
// Retrieval info: CONNECT: @clr 0 0 0 0 clr 0 0 0 0
// Retrieval info: USED_PORT: tsdcaldone 0 0 0 0 OUTPUT NODEFVAL "tsdcaldone"
// Retrieval info: CONNECT: tsdcaldone 0 0 0 0 @tsdcaldone 0 0 0 0
// Retrieval info: USED_PORT: tsdcalo 0 0 8 0 OUTPUT NODEFVAL "tsdcalo[7..0]"
// Retrieval info: CONNECT: tsdcalo 0 0 8 0 @tsdcalo 0 0 8 0
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.v TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.qip TRUE FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.bsf FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_inst.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense_bb.v FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.inc FALSE TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL temp_sense.cmp FALSE TRUE
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is used to breakout the 256 bit streaming ports to and from the write master.
The information sent through the streaming ports is a bundle of wires and buses so it's
fairly inconvenient to constantly refer to them by their position amungst the 256 lines.
This block also provides a layer of abstraction since the descriptor buffers block has
no clue what format the descriptors are in except that the 'go' bit is written to. This
means that using this block you could move descriptor information around without affecting
the top level dispatcher logic.
1.0 06/29/2009 - First version of this block of wires
1.1 11/15/2012 - Added in an additional 32 bits of address for extended descriptors
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module write_signal_breakout (
write_command_data_in, // descriptor from the write FIFO
write_command_data_out, // reformated descriptor to the write master
// breakout of command information
write_address,
write_length,
write_park,
write_end_on_eop,
write_transfer_complete_IRQ_mask,
write_early_termination_IRQ_mask,
write_error_IRQ_mask,
write_burst_count, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_stride, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_sequence_number, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
// additional control information that needs to go out asynchronously with the command data
write_stop,
write_sw_reset
);
parameter DATA_WIDTH = 256; // 256 bits when enhanced settings are enabled otherwise 128 bits
input [DATA_WIDTH-1:0] write_command_data_in;
output wire [255:0] write_command_data_out;
output wire [63:0] write_address;
output wire [31:0] write_length;
output wire write_park;
output wire write_end_on_eop;
output wire write_transfer_complete_IRQ_mask;
output wire write_early_termination_IRQ_mask;
output wire [7:0] write_error_IRQ_mask;
output wire [7:0] write_burst_count;
output wire [15:0] write_stride;
output wire [15:0] write_sequence_number;
input write_stop;
input write_sw_reset;
assign write_address[31:0] = write_command_data_in[63:32];
assign write_length = write_command_data_in[95:64];
generate
if (DATA_WIDTH == 256)
begin
assign write_park = write_command_data_in[235];
assign write_end_on_eop = write_command_data_in[236];
assign write_transfer_complete_IRQ_mask = write_command_data_in[238];
assign write_early_termination_IRQ_mask = write_command_data_in[239];
assign write_error_IRQ_mask = write_command_data_in[247:240];
assign write_burst_count = write_command_data_in[127:120];
assign write_stride = write_command_data_in[159:144];
assign write_sequence_number = write_command_data_in[111:96];
assign write_address[63:32] = write_command_data_in[223:192];
end
else
begin
assign write_park = write_command_data_in[107];
assign write_end_on_eop = write_command_data_in[108];
assign write_transfer_complete_IRQ_mask = write_command_data_in[110];
assign write_early_termination_IRQ_mask = write_command_data_in[111];
assign write_error_IRQ_mask = write_command_data_in[119:112];
assign write_burst_count = 8'h00;
assign write_stride = 16'h0000;
assign write_sequence_number = 16'h0000;
assign write_address[63:32] = 32'h00000000;
end
endgenerate
// big concat statement to glue all the signals back together to go out to the write master (MSBs to LSBs)
assign write_command_data_out = {{132{1'b0}}, // zero pad the upper 132 bits
write_address[63:32],
write_stride,
write_burst_count,
write_sw_reset,
write_stop,
1'b0, // used to be the early termination bit so now it's reserved
write_end_on_eop,
write_length,
write_address[31:0]};
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is used to breakout the 256 bit streaming ports to and from the write master.
The information sent through the streaming ports is a bundle of wires and buses so it's
fairly inconvenient to constantly refer to them by their position amungst the 256 lines.
This block also provides a layer of abstraction since the descriptor buffers block has
no clue what format the descriptors are in except that the 'go' bit is written to. This
means that using this block you could move descriptor information around without affecting
the top level dispatcher logic.
1.0 06/29/2009 - First version of this block of wires
1.1 11/15/2012 - Added in an additional 32 bits of address for extended descriptors
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module write_signal_breakout (
write_command_data_in, // descriptor from the write FIFO
write_command_data_out, // reformated descriptor to the write master
// breakout of command information
write_address,
write_length,
write_park,
write_end_on_eop,
write_transfer_complete_IRQ_mask,
write_early_termination_IRQ_mask,
write_error_IRQ_mask,
write_burst_count, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_stride, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_sequence_number, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
// additional control information that needs to go out asynchronously with the command data
write_stop,
write_sw_reset
);
parameter DATA_WIDTH = 256; // 256 bits when enhanced settings are enabled otherwise 128 bits
input [DATA_WIDTH-1:0] write_command_data_in;
output wire [255:0] write_command_data_out;
output wire [63:0] write_address;
output wire [31:0] write_length;
output wire write_park;
output wire write_end_on_eop;
output wire write_transfer_complete_IRQ_mask;
output wire write_early_termination_IRQ_mask;
output wire [7:0] write_error_IRQ_mask;
output wire [7:0] write_burst_count;
output wire [15:0] write_stride;
output wire [15:0] write_sequence_number;
input write_stop;
input write_sw_reset;
assign write_address[31:0] = write_command_data_in[63:32];
assign write_length = write_command_data_in[95:64];
generate
if (DATA_WIDTH == 256)
begin
assign write_park = write_command_data_in[235];
assign write_end_on_eop = write_command_data_in[236];
assign write_transfer_complete_IRQ_mask = write_command_data_in[238];
assign write_early_termination_IRQ_mask = write_command_data_in[239];
assign write_error_IRQ_mask = write_command_data_in[247:240];
assign write_burst_count = write_command_data_in[127:120];
assign write_stride = write_command_data_in[159:144];
assign write_sequence_number = write_command_data_in[111:96];
assign write_address[63:32] = write_command_data_in[223:192];
end
else
begin
assign write_park = write_command_data_in[107];
assign write_end_on_eop = write_command_data_in[108];
assign write_transfer_complete_IRQ_mask = write_command_data_in[110];
assign write_early_termination_IRQ_mask = write_command_data_in[111];
assign write_error_IRQ_mask = write_command_data_in[119:112];
assign write_burst_count = 8'h00;
assign write_stride = 16'h0000;
assign write_sequence_number = 16'h0000;
assign write_address[63:32] = 32'h00000000;
end
endgenerate
// big concat statement to glue all the signals back together to go out to the write master (MSBs to LSBs)
assign write_command_data_out = {{132{1'b0}}, // zero pad the upper 132 bits
write_address[63:32],
write_stride,
write_burst_count,
write_sw_reset,
write_stop,
1'b0, // used to be the early termination bit so now it's reserved
write_end_on_eop,
write_length,
write_address[31:0]};
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/29/2009
This block is used to breakout the 256 bit streaming ports to and from the write master.
The information sent through the streaming ports is a bundle of wires and buses so it's
fairly inconvenient to constantly refer to them by their position amungst the 256 lines.
This block also provides a layer of abstraction since the descriptor buffers block has
no clue what format the descriptors are in except that the 'go' bit is written to. This
means that using this block you could move descriptor information around without affecting
the top level dispatcher logic.
1.0 06/29/2009 - First version of this block of wires
1.1 11/15/2012 - Added in an additional 32 bits of address for extended descriptors
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module write_signal_breakout (
write_command_data_in, // descriptor from the write FIFO
write_command_data_out, // reformated descriptor to the write master
// breakout of command information
write_address,
write_length,
write_park,
write_end_on_eop,
write_transfer_complete_IRQ_mask,
write_early_termination_IRQ_mask,
write_error_IRQ_mask,
write_burst_count, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_stride, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
write_sequence_number, // when 'ENHANCED_FEATURES' is 0 this will be driven to ground
// additional control information that needs to go out asynchronously with the command data
write_stop,
write_sw_reset
);
parameter DATA_WIDTH = 256; // 256 bits when enhanced settings are enabled otherwise 128 bits
input [DATA_WIDTH-1:0] write_command_data_in;
output wire [255:0] write_command_data_out;
output wire [63:0] write_address;
output wire [31:0] write_length;
output wire write_park;
output wire write_end_on_eop;
output wire write_transfer_complete_IRQ_mask;
output wire write_early_termination_IRQ_mask;
output wire [7:0] write_error_IRQ_mask;
output wire [7:0] write_burst_count;
output wire [15:0] write_stride;
output wire [15:0] write_sequence_number;
input write_stop;
input write_sw_reset;
assign write_address[31:0] = write_command_data_in[63:32];
assign write_length = write_command_data_in[95:64];
generate
if (DATA_WIDTH == 256)
begin
assign write_park = write_command_data_in[235];
assign write_end_on_eop = write_command_data_in[236];
assign write_transfer_complete_IRQ_mask = write_command_data_in[238];
assign write_early_termination_IRQ_mask = write_command_data_in[239];
assign write_error_IRQ_mask = write_command_data_in[247:240];
assign write_burst_count = write_command_data_in[127:120];
assign write_stride = write_command_data_in[159:144];
assign write_sequence_number = write_command_data_in[111:96];
assign write_address[63:32] = write_command_data_in[223:192];
end
else
begin
assign write_park = write_command_data_in[107];
assign write_end_on_eop = write_command_data_in[108];
assign write_transfer_complete_IRQ_mask = write_command_data_in[110];
assign write_early_termination_IRQ_mask = write_command_data_in[111];
assign write_error_IRQ_mask = write_command_data_in[119:112];
assign write_burst_count = 8'h00;
assign write_stride = 16'h0000;
assign write_sequence_number = 16'h0000;
assign write_address[63:32] = 32'h00000000;
end
endgenerate
// big concat statement to glue all the signals back together to go out to the write master (MSBs to LSBs)
assign write_command_data_out = {{132{1'b0}}, // zero pad the upper 132 bits
write_address[63:32],
write_stride,
write_burst_count,
write_sw_reset,
write_stop,
1'b0, // used to be the early termination bit so now it's reserved
write_end_on_eop,
write_length,
write_address[31:0]};
endmodule
|
module unpipeline #
(
parameter WIDTH_D = 256,
parameter S_WIDTH_A = 26,
parameter M_WIDTH_A = S_WIDTH_A+$clog2(WIDTH_D/8),
parameter BURSTCOUNT_WIDTH = 1,
parameter BYTEENABLE_WIDTH = WIDTH_D,
parameter MAX_PENDING_READS = 64
)
(
input clk,
input resetn,
// Slave port
input [S_WIDTH_A-1:0] slave_address, // Word address
input [WIDTH_D-1:0] slave_writedata,
input slave_read,
input slave_write,
input [BURSTCOUNT_WIDTH-1:0] slave_burstcount,
input [BYTEENABLE_WIDTH-1:0] slave_byteenable,
output slave_waitrequest,
output [WIDTH_D-1:0] slave_readdata,
output slave_readdatavalid,
output [M_WIDTH_A-1:0] master_address, // Byte address
output [WIDTH_D-1:0] master_writedata,
output master_read,
output master_write,
output [BYTEENABLE_WIDTH-1:0] master_byteenable,
input master_waitrequest,
input [WIDTH_D-1:0] master_readdata
);
assign master_read = slave_read;
assign master_write = slave_write;
assign master_writedata = slave_writedata;
assign master_address = {slave_address,{$clog2(WIDTH_D/8){1'b0}}}; //byteaddr
assign master_byteenable = slave_byteenable;
assign slave_waitrequest = master_waitrequest;
assign slave_readdatavalid = slave_read & ~master_waitrequest;
assign slave_readdata = master_readdata;
endmodule
|
module unpipeline #
(
parameter WIDTH_D = 256,
parameter S_WIDTH_A = 26,
parameter M_WIDTH_A = S_WIDTH_A+$clog2(WIDTH_D/8),
parameter BURSTCOUNT_WIDTH = 1,
parameter BYTEENABLE_WIDTH = WIDTH_D,
parameter MAX_PENDING_READS = 64
)
(
input clk,
input resetn,
// Slave port
input [S_WIDTH_A-1:0] slave_address, // Word address
input [WIDTH_D-1:0] slave_writedata,
input slave_read,
input slave_write,
input [BURSTCOUNT_WIDTH-1:0] slave_burstcount,
input [BYTEENABLE_WIDTH-1:0] slave_byteenable,
output slave_waitrequest,
output [WIDTH_D-1:0] slave_readdata,
output slave_readdatavalid,
output [M_WIDTH_A-1:0] master_address, // Byte address
output [WIDTH_D-1:0] master_writedata,
output master_read,
output master_write,
output [BYTEENABLE_WIDTH-1:0] master_byteenable,
input master_waitrequest,
input [WIDTH_D-1:0] master_readdata
);
assign master_read = slave_read;
assign master_write = slave_write;
assign master_writedata = slave_writedata;
assign master_address = {slave_address,{$clog2(WIDTH_D/8){1'b0}}}; //byteaddr
assign master_byteenable = slave_byteenable;
assign slave_waitrequest = master_waitrequest;
assign slave_readdatavalid = slave_read & ~master_waitrequest;
assign slave_readdata = master_readdata;
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/30/2009
This block is used to communicate information back and forth between the SGDMA
and the host. When the response port is not set to streaming then this block
will be used to generate interrupts for the host. The address span of this block
differs depending on whether the enhanced features are enabled. The enhanced
features enables sequence number readback capabilties. The address map is as follows:
Enhanced features off:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-31 N/A <Reserved>
Enhanced features on:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-20 R Sequence Number (write sequence[15:0],read sequence[15:0])
21-31 N/A <Reserved>
(1) Writing to the interrupt bit of the status register clears the interrupt bit (when applicable)
(2) Writing to the software reset bit will clear the entire register (as well as all the registers for the entire SGDMA)
Status Register:
Bits Description
---- -----------
0 Busy
1 Descriptor Buffer Empty
2 Descriptor Buffer Full
3 Response Buffer Empty
4 Response Buffer Full
5 Stop State
6 Reset State
7 Stopped on Error
8 Stopped on Early Termination
9 IRQ
10-15 <Reserved>
15-31 Done count (JSF: Added 06/13/2011)
Control Register:
Bits Description
---- -----------
0 Stop (will also be set if a stop on error/early termination condition occurs)
1 Software Reset
2 Stop on Error
3 Stop on Early Termination
4 Global Interrupt Enable Mask
5 Stop descriptors (stops the dispatcher from issuing more read/write commands)
6-31 <Reserved>
Author: JCJB
Date: 08/18/2010
1.0 - Initial release
1.1 - Removed delayed reset, added set and hold sw_reset
1.2 - Updated the sw_reset register to be set when control[1] is set instead of one cycle after.
This will prevent the read or write masters from starting back up when reset while in the stop state.
1.3 - Added the stop dispatcher bit (5) to the control register
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module csr_block (
clk,
reset,
csr_writedata,
csr_write,
csr_byteenable,
csr_readdata,
csr_read,
csr_address,
csr_irq,
done_strobe,
busy,
descriptor_buffer_empty,
descriptor_buffer_full,
stop_state,
stopped_on_error,
stopped_on_early_termination,
reset_stalled,
stop,
sw_reset,
stop_on_error,
stop_on_early_termination,
stop_descriptors,
sequence_number,
descriptor_watermark,
response_watermark,
response_buffer_empty,
response_buffer_full,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
error,
early_termination
);
parameter ADDRESS_WIDTH = 3;
localparam CONTROL_REGISTER_ADDRESS = 3'b001;
input clk;
input reset;
input [31:0] csr_writedata;
input csr_write;
input [3:0] csr_byteenable;
output wire [31:0] csr_readdata;
input csr_read;
input [ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
input done_strobe;
input busy;
input descriptor_buffer_empty;
input descriptor_buffer_full;
input stop_state; // when the DMA runs into some error condition and you have enabled the stop on error (or when the stop control bit is written to)
input reset_stalled; // the read or write master could be in the middle of a transfer/burst so it might take a while to flush the buffers
output wire stop;
output reg stopped_on_error;
output reg stopped_on_early_termination;
output reg sw_reset;
output wire stop_on_error;
output wire stop_on_early_termination;
output wire stop_descriptors;
input [31:0] sequence_number;
input [31:0] descriptor_watermark;
input [15:0] response_watermark;
input response_buffer_empty;
input response_buffer_full;
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input [7:0] error;
input early_termination;
/* Internal wires and registers */
wire [31:0] status;
reg [31:0] control;
reg [31:0] readdata;
reg [31:0] readdata_d1;
reg irq; // writing to the status register clears the irq bit
wire set_irq;
wire clear_irq;
reg [15:0] irq_count; // writing to bit 0 clears the counter
wire clear_irq_count;
wire incr_irq_count;
wire set_stopped_on_error;
wire set_stopped_on_early_termination;
wire set_stop;
wire clear_stop;
wire global_interrupt_enable;
wire sw_reset_strobe; // this strobe will be one cycle earlier than sw_reset
wire set_sw_reset;
wire clear_sw_reset;
/********************************************** Registers ***************************************************/
// read latency is 1 cycle
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
readdata_d1 <= 0;
end
else if (csr_read == 1)
begin
readdata_d1 <= readdata;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[31:1] <= 0;
end
else
begin
if (sw_reset_strobe == 1) // reset strobe is a strobe due to this sync reset
begin
control[31:1] <= 0;
end
else
begin
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1))
begin
control[7:1] <= csr_writedata[7:1]; // stop bit will be handled seperately since it can be set by the csr slave port access or the SGDMA hitting an error condition
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[1] == 1))
begin
control[15:8] <= csr_writedata[15:8];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[2] == 1))
begin
control[23:16] <= csr_writedata[23:16];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[3] == 1))
begin
control[31:24] <= csr_writedata[31:24];
end
end
end
end
// control bit 0 (stop) is set by different sources so handling it seperately
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[0] <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
control[0] <= 0;
end
else
begin
case ({set_stop, clear_stop})
2'b00: control[0] <= control[0];
2'b01: control[0] <= 1'b0;
2'b10: control[0] <= 1'b1;
2'b11: control[0] <= 1'b1; // setting will win, this case happens control[0] is being set to 0 (resume) at the same time an error/early termination stop condition occurs
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
sw_reset <= 0;
end
else
begin
if (set_sw_reset == 1)
begin
sw_reset <= 1;
end
else if (clear_sw_reset == 1)
begin
sw_reset <= 0;
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_error <= 0;
end
else
begin
case ({set_stopped_on_error, clear_stop})
2'b00: stopped_on_error <= stopped_on_error;
2'b01: stopped_on_error <= 1'b0;
2'b10: stopped_on_error <= 1'b1;
2'b11: stopped_on_error <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_early_termination <= 0;
end
else
begin
case ({set_stopped_on_early_termination, clear_stop})
2'b00: stopped_on_early_termination <= stopped_on_early_termination;
2'b01: stopped_on_early_termination <= 1'b0;
2'b10: stopped_on_early_termination <= 1'b1;
2'b11: stopped_on_early_termination <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
irq <= 0;
end
else
begin
case ({clear_irq, set_irq})
2'b00: irq <= irq;
2'b01: irq <= 1'b1;
2'b10: irq <= 1'b0;
2'b11: irq <= 1'b1; // setting will win over a clear
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq_count <= {16{1'b0}};
end
else
begin
if (sw_reset_strobe == 1)
begin
irq_count <= {16{1'b0}};
end
else
begin
case ({clear_irq_count, incr_irq_count})
2'b00: irq_count <= irq_count;
2'b01: irq_count <= irq_count + 1;
2'b10: irq_count <= {16{1'b0}};
2'b11: irq_count <= {{15{1'b0}}, 1'b1};
endcase
end
end
end
/******************************************** End Registers *************************************************/
/**************************************** Combinational Signals *********************************************/
generate
if (ADDRESS_WIDTH == 3)
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark or sequence_number)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
3'b011: readdata = response_watermark;
default: readdata = sequence_number; // all other addresses will decode to the sequence number
endcase
end
end
else
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
default: readdata = response_watermark; // all other addresses will decode to the response watermark
endcase
end
end
endgenerate
assign clear_irq = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[1] == 1) & (csr_writedata[9] == 1); // this is the IRQ bit
assign set_irq = (global_interrupt_enable == 1) & (done_strobe == 1) & // transfer ended and interrupts are enabled
((transfer_complete_IRQ_mask == 1) | // transfer ended and the transfer complete IRQ is enabled
((error & error_IRQ_mask) != 0) | // transfer ended with an error and this IRQ is enabled
((early_termination & early_termination_IRQ_mask) == 1)); // transfer ended early due to early termination and this IRQ is enabled
assign csr_irq = irq;
// Done count
assign incr_irq_count = set_irq; // Done count just counts the number of interrupts since the last reset
assign clear_irq_count = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[2] == 1) & (csr_writedata[16] == 1); // the LSB irq_count bit
assign clear_stop = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 0);
assign set_stopped_on_error = (done_strobe == 1) & (stop_on_error == 1) & (error != 0); // when clear_stop is set then the stopped_on_error register will be cleared
assign set_stopped_on_early_termination = (done_strobe == 1) & (stop_on_early_termination == 1) & (early_termination == 1); // when clear_stop is set then the stopped_on_early_termination register will be cleared
assign set_stop = ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 1)) | // host set the stop bit
(set_stopped_on_error == 1) | // SGDMA setup to stop when an error occurs from the write master
(set_stopped_on_early_termination == 1) ; // SGDMA setup to stop when the write master overflows
assign stop = control[0];
assign set_sw_reset = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[1] == 1);
assign clear_sw_reset = (sw_reset == 1) & (reset_stalled == 0);
assign sw_reset_strobe = control[1];
assign stop_on_error = control[2];
assign stop_on_early_termination = control[3];
assign global_interrupt_enable = control[4];
assign stop_descriptors = control[5];
assign csr_readdata = readdata_d1;
assign status = {irq_count, {6{1'b0}}, irq, stopped_on_early_termination, stopped_on_error, sw_reset, stop_state, response_buffer_full, response_buffer_empty, descriptor_buffer_full, descriptor_buffer_empty, busy}; // writing to the lower byte of the status register clears the irq bit
/**************************************** Combinational Signals *********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/30/2009
This block is used to communicate information back and forth between the SGDMA
and the host. When the response port is not set to streaming then this block
will be used to generate interrupts for the host. The address span of this block
differs depending on whether the enhanced features are enabled. The enhanced
features enables sequence number readback capabilties. The address map is as follows:
Enhanced features off:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-31 N/A <Reserved>
Enhanced features on:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-20 R Sequence Number (write sequence[15:0],read sequence[15:0])
21-31 N/A <Reserved>
(1) Writing to the interrupt bit of the status register clears the interrupt bit (when applicable)
(2) Writing to the software reset bit will clear the entire register (as well as all the registers for the entire SGDMA)
Status Register:
Bits Description
---- -----------
0 Busy
1 Descriptor Buffer Empty
2 Descriptor Buffer Full
3 Response Buffer Empty
4 Response Buffer Full
5 Stop State
6 Reset State
7 Stopped on Error
8 Stopped on Early Termination
9 IRQ
10-15 <Reserved>
15-31 Done count (JSF: Added 06/13/2011)
Control Register:
Bits Description
---- -----------
0 Stop (will also be set if a stop on error/early termination condition occurs)
1 Software Reset
2 Stop on Error
3 Stop on Early Termination
4 Global Interrupt Enable Mask
5 Stop descriptors (stops the dispatcher from issuing more read/write commands)
6-31 <Reserved>
Author: JCJB
Date: 08/18/2010
1.0 - Initial release
1.1 - Removed delayed reset, added set and hold sw_reset
1.2 - Updated the sw_reset register to be set when control[1] is set instead of one cycle after.
This will prevent the read or write masters from starting back up when reset while in the stop state.
1.3 - Added the stop dispatcher bit (5) to the control register
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module csr_block (
clk,
reset,
csr_writedata,
csr_write,
csr_byteenable,
csr_readdata,
csr_read,
csr_address,
csr_irq,
done_strobe,
busy,
descriptor_buffer_empty,
descriptor_buffer_full,
stop_state,
stopped_on_error,
stopped_on_early_termination,
reset_stalled,
stop,
sw_reset,
stop_on_error,
stop_on_early_termination,
stop_descriptors,
sequence_number,
descriptor_watermark,
response_watermark,
response_buffer_empty,
response_buffer_full,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
error,
early_termination
);
parameter ADDRESS_WIDTH = 3;
localparam CONTROL_REGISTER_ADDRESS = 3'b001;
input clk;
input reset;
input [31:0] csr_writedata;
input csr_write;
input [3:0] csr_byteenable;
output wire [31:0] csr_readdata;
input csr_read;
input [ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
input done_strobe;
input busy;
input descriptor_buffer_empty;
input descriptor_buffer_full;
input stop_state; // when the DMA runs into some error condition and you have enabled the stop on error (or when the stop control bit is written to)
input reset_stalled; // the read or write master could be in the middle of a transfer/burst so it might take a while to flush the buffers
output wire stop;
output reg stopped_on_error;
output reg stopped_on_early_termination;
output reg sw_reset;
output wire stop_on_error;
output wire stop_on_early_termination;
output wire stop_descriptors;
input [31:0] sequence_number;
input [31:0] descriptor_watermark;
input [15:0] response_watermark;
input response_buffer_empty;
input response_buffer_full;
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input [7:0] error;
input early_termination;
/* Internal wires and registers */
wire [31:0] status;
reg [31:0] control;
reg [31:0] readdata;
reg [31:0] readdata_d1;
reg irq; // writing to the status register clears the irq bit
wire set_irq;
wire clear_irq;
reg [15:0] irq_count; // writing to bit 0 clears the counter
wire clear_irq_count;
wire incr_irq_count;
wire set_stopped_on_error;
wire set_stopped_on_early_termination;
wire set_stop;
wire clear_stop;
wire global_interrupt_enable;
wire sw_reset_strobe; // this strobe will be one cycle earlier than sw_reset
wire set_sw_reset;
wire clear_sw_reset;
/********************************************** Registers ***************************************************/
// read latency is 1 cycle
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
readdata_d1 <= 0;
end
else if (csr_read == 1)
begin
readdata_d1 <= readdata;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[31:1] <= 0;
end
else
begin
if (sw_reset_strobe == 1) // reset strobe is a strobe due to this sync reset
begin
control[31:1] <= 0;
end
else
begin
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1))
begin
control[7:1] <= csr_writedata[7:1]; // stop bit will be handled seperately since it can be set by the csr slave port access or the SGDMA hitting an error condition
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[1] == 1))
begin
control[15:8] <= csr_writedata[15:8];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[2] == 1))
begin
control[23:16] <= csr_writedata[23:16];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[3] == 1))
begin
control[31:24] <= csr_writedata[31:24];
end
end
end
end
// control bit 0 (stop) is set by different sources so handling it seperately
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[0] <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
control[0] <= 0;
end
else
begin
case ({set_stop, clear_stop})
2'b00: control[0] <= control[0];
2'b01: control[0] <= 1'b0;
2'b10: control[0] <= 1'b1;
2'b11: control[0] <= 1'b1; // setting will win, this case happens control[0] is being set to 0 (resume) at the same time an error/early termination stop condition occurs
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
sw_reset <= 0;
end
else
begin
if (set_sw_reset == 1)
begin
sw_reset <= 1;
end
else if (clear_sw_reset == 1)
begin
sw_reset <= 0;
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_error <= 0;
end
else
begin
case ({set_stopped_on_error, clear_stop})
2'b00: stopped_on_error <= stopped_on_error;
2'b01: stopped_on_error <= 1'b0;
2'b10: stopped_on_error <= 1'b1;
2'b11: stopped_on_error <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_early_termination <= 0;
end
else
begin
case ({set_stopped_on_early_termination, clear_stop})
2'b00: stopped_on_early_termination <= stopped_on_early_termination;
2'b01: stopped_on_early_termination <= 1'b0;
2'b10: stopped_on_early_termination <= 1'b1;
2'b11: stopped_on_early_termination <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
irq <= 0;
end
else
begin
case ({clear_irq, set_irq})
2'b00: irq <= irq;
2'b01: irq <= 1'b1;
2'b10: irq <= 1'b0;
2'b11: irq <= 1'b1; // setting will win over a clear
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq_count <= {16{1'b0}};
end
else
begin
if (sw_reset_strobe == 1)
begin
irq_count <= {16{1'b0}};
end
else
begin
case ({clear_irq_count, incr_irq_count})
2'b00: irq_count <= irq_count;
2'b01: irq_count <= irq_count + 1;
2'b10: irq_count <= {16{1'b0}};
2'b11: irq_count <= {{15{1'b0}}, 1'b1};
endcase
end
end
end
/******************************************** End Registers *************************************************/
/**************************************** Combinational Signals *********************************************/
generate
if (ADDRESS_WIDTH == 3)
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark or sequence_number)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
3'b011: readdata = response_watermark;
default: readdata = sequence_number; // all other addresses will decode to the sequence number
endcase
end
end
else
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
default: readdata = response_watermark; // all other addresses will decode to the response watermark
endcase
end
end
endgenerate
assign clear_irq = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[1] == 1) & (csr_writedata[9] == 1); // this is the IRQ bit
assign set_irq = (global_interrupt_enable == 1) & (done_strobe == 1) & // transfer ended and interrupts are enabled
((transfer_complete_IRQ_mask == 1) | // transfer ended and the transfer complete IRQ is enabled
((error & error_IRQ_mask) != 0) | // transfer ended with an error and this IRQ is enabled
((early_termination & early_termination_IRQ_mask) == 1)); // transfer ended early due to early termination and this IRQ is enabled
assign csr_irq = irq;
// Done count
assign incr_irq_count = set_irq; // Done count just counts the number of interrupts since the last reset
assign clear_irq_count = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[2] == 1) & (csr_writedata[16] == 1); // the LSB irq_count bit
assign clear_stop = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 0);
assign set_stopped_on_error = (done_strobe == 1) & (stop_on_error == 1) & (error != 0); // when clear_stop is set then the stopped_on_error register will be cleared
assign set_stopped_on_early_termination = (done_strobe == 1) & (stop_on_early_termination == 1) & (early_termination == 1); // when clear_stop is set then the stopped_on_early_termination register will be cleared
assign set_stop = ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 1)) | // host set the stop bit
(set_stopped_on_error == 1) | // SGDMA setup to stop when an error occurs from the write master
(set_stopped_on_early_termination == 1) ; // SGDMA setup to stop when the write master overflows
assign stop = control[0];
assign set_sw_reset = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[1] == 1);
assign clear_sw_reset = (sw_reset == 1) & (reset_stalled == 0);
assign sw_reset_strobe = control[1];
assign stop_on_error = control[2];
assign stop_on_early_termination = control[3];
assign global_interrupt_enable = control[4];
assign stop_descriptors = control[5];
assign csr_readdata = readdata_d1;
assign status = {irq_count, {6{1'b0}}, irq, stopped_on_early_termination, stopped_on_error, sw_reset, stop_state, response_buffer_full, response_buffer_empty, descriptor_buffer_full, descriptor_buffer_empty, busy}; // writing to the lower byte of the status register clears the irq bit
/**************************************** Combinational Signals *********************************************/
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 06/30/2009
This block is used to communicate information back and forth between the SGDMA
and the host. When the response port is not set to streaming then this block
will be used to generate interrupts for the host. The address span of this block
differs depending on whether the enhanced features are enabled. The enhanced
features enables sequence number readback capabilties. The address map is as follows:
Enhanced features off:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-31 N/A <Reserved>
Enhanced features on:
Bytes Access Type Description
----- ----------- -----------
0-3 R Status(1)
4-7 R/W Control(2)
8-12 R Descriptor Watermark (write watermark[15:0],read watermark [15:0])
13-15 R Response Watermark
16-20 R Sequence Number (write sequence[15:0],read sequence[15:0])
21-31 N/A <Reserved>
(1) Writing to the interrupt bit of the status register clears the interrupt bit (when applicable)
(2) Writing to the software reset bit will clear the entire register (as well as all the registers for the entire SGDMA)
Status Register:
Bits Description
---- -----------
0 Busy
1 Descriptor Buffer Empty
2 Descriptor Buffer Full
3 Response Buffer Empty
4 Response Buffer Full
5 Stop State
6 Reset State
7 Stopped on Error
8 Stopped on Early Termination
9 IRQ
10-15 <Reserved>
15-31 Done count (JSF: Added 06/13/2011)
Control Register:
Bits Description
---- -----------
0 Stop (will also be set if a stop on error/early termination condition occurs)
1 Software Reset
2 Stop on Error
3 Stop on Early Termination
4 Global Interrupt Enable Mask
5 Stop descriptors (stops the dispatcher from issuing more read/write commands)
6-31 <Reserved>
Author: JCJB
Date: 08/18/2010
1.0 - Initial release
1.1 - Removed delayed reset, added set and hold sw_reset
1.2 - Updated the sw_reset register to be set when control[1] is set instead of one cycle after.
This will prevent the read or write masters from starting back up when reset while in the stop state.
1.3 - Added the stop dispatcher bit (5) to the control register
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module csr_block (
clk,
reset,
csr_writedata,
csr_write,
csr_byteenable,
csr_readdata,
csr_read,
csr_address,
csr_irq,
done_strobe,
busy,
descriptor_buffer_empty,
descriptor_buffer_full,
stop_state,
stopped_on_error,
stopped_on_early_termination,
reset_stalled,
stop,
sw_reset,
stop_on_error,
stop_on_early_termination,
stop_descriptors,
sequence_number,
descriptor_watermark,
response_watermark,
response_buffer_empty,
response_buffer_full,
transfer_complete_IRQ_mask,
error_IRQ_mask,
early_termination_IRQ_mask,
error,
early_termination
);
parameter ADDRESS_WIDTH = 3;
localparam CONTROL_REGISTER_ADDRESS = 3'b001;
input clk;
input reset;
input [31:0] csr_writedata;
input csr_write;
input [3:0] csr_byteenable;
output wire [31:0] csr_readdata;
input csr_read;
input [ADDRESS_WIDTH-1:0] csr_address;
output wire csr_irq;
input done_strobe;
input busy;
input descriptor_buffer_empty;
input descriptor_buffer_full;
input stop_state; // when the DMA runs into some error condition and you have enabled the stop on error (or when the stop control bit is written to)
input reset_stalled; // the read or write master could be in the middle of a transfer/burst so it might take a while to flush the buffers
output wire stop;
output reg stopped_on_error;
output reg stopped_on_early_termination;
output reg sw_reset;
output wire stop_on_error;
output wire stop_on_early_termination;
output wire stop_descriptors;
input [31:0] sequence_number;
input [31:0] descriptor_watermark;
input [15:0] response_watermark;
input response_buffer_empty;
input response_buffer_full;
input transfer_complete_IRQ_mask;
input [7:0] error_IRQ_mask;
input early_termination_IRQ_mask;
input [7:0] error;
input early_termination;
/* Internal wires and registers */
wire [31:0] status;
reg [31:0] control;
reg [31:0] readdata;
reg [31:0] readdata_d1;
reg irq; // writing to the status register clears the irq bit
wire set_irq;
wire clear_irq;
reg [15:0] irq_count; // writing to bit 0 clears the counter
wire clear_irq_count;
wire incr_irq_count;
wire set_stopped_on_error;
wire set_stopped_on_early_termination;
wire set_stop;
wire clear_stop;
wire global_interrupt_enable;
wire sw_reset_strobe; // this strobe will be one cycle earlier than sw_reset
wire set_sw_reset;
wire clear_sw_reset;
/********************************************** Registers ***************************************************/
// read latency is 1 cycle
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
readdata_d1 <= 0;
end
else if (csr_read == 1)
begin
readdata_d1 <= readdata;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[31:1] <= 0;
end
else
begin
if (sw_reset_strobe == 1) // reset strobe is a strobe due to this sync reset
begin
control[31:1] <= 0;
end
else
begin
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1))
begin
control[7:1] <= csr_writedata[7:1]; // stop bit will be handled seperately since it can be set by the csr slave port access or the SGDMA hitting an error condition
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[1] == 1))
begin
control[15:8] <= csr_writedata[15:8];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[2] == 1))
begin
control[23:16] <= csr_writedata[23:16];
end
if ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[3] == 1))
begin
control[31:24] <= csr_writedata[31:24];
end
end
end
end
// control bit 0 (stop) is set by different sources so handling it seperately
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
control[0] <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
control[0] <= 0;
end
else
begin
case ({set_stop, clear_stop})
2'b00: control[0] <= control[0];
2'b01: control[0] <= 1'b0;
2'b10: control[0] <= 1'b1;
2'b11: control[0] <= 1'b1; // setting will win, this case happens control[0] is being set to 0 (resume) at the same time an error/early termination stop condition occurs
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
sw_reset <= 0;
end
else
begin
if (set_sw_reset == 1)
begin
sw_reset <= 1;
end
else if (clear_sw_reset == 1)
begin
sw_reset <= 0;
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_error <= 0;
end
else
begin
case ({set_stopped_on_error, clear_stop})
2'b00: stopped_on_error <= stopped_on_error;
2'b01: stopped_on_error <= 1'b0;
2'b10: stopped_on_error <= 1'b1;
2'b11: stopped_on_error <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
stopped_on_early_termination <= 0;
end
else
begin
case ({set_stopped_on_early_termination, clear_stop})
2'b00: stopped_on_early_termination <= stopped_on_early_termination;
2'b01: stopped_on_early_termination <= 1'b0;
2'b10: stopped_on_early_termination <= 1'b1;
2'b11: stopped_on_early_termination <= 1'b0;
endcase
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq <= 0;
end
else
begin
if (sw_reset_strobe == 1)
begin
irq <= 0;
end
else
begin
case ({clear_irq, set_irq})
2'b00: irq <= irq;
2'b01: irq <= 1'b1;
2'b10: irq <= 1'b0;
2'b11: irq <= 1'b1; // setting will win over a clear
endcase
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
irq_count <= {16{1'b0}};
end
else
begin
if (sw_reset_strobe == 1)
begin
irq_count <= {16{1'b0}};
end
else
begin
case ({clear_irq_count, incr_irq_count})
2'b00: irq_count <= irq_count;
2'b01: irq_count <= irq_count + 1;
2'b10: irq_count <= {16{1'b0}};
2'b11: irq_count <= {{15{1'b0}}, 1'b1};
endcase
end
end
end
/******************************************** End Registers *************************************************/
/**************************************** Combinational Signals *********************************************/
generate
if (ADDRESS_WIDTH == 3)
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark or sequence_number)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
3'b011: readdata = response_watermark;
default: readdata = sequence_number; // all other addresses will decode to the sequence number
endcase
end
end
else
begin
always @ (csr_address or status or control or descriptor_watermark or response_watermark)
begin
case (csr_address)
3'b000: readdata = status;
3'b001: readdata = control;
3'b010: readdata = descriptor_watermark;
default: readdata = response_watermark; // all other addresses will decode to the response watermark
endcase
end
end
endgenerate
assign clear_irq = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[1] == 1) & (csr_writedata[9] == 1); // this is the IRQ bit
assign set_irq = (global_interrupt_enable == 1) & (done_strobe == 1) & // transfer ended and interrupts are enabled
((transfer_complete_IRQ_mask == 1) | // transfer ended and the transfer complete IRQ is enabled
((error & error_IRQ_mask) != 0) | // transfer ended with an error and this IRQ is enabled
((early_termination & early_termination_IRQ_mask) == 1)); // transfer ended early due to early termination and this IRQ is enabled
assign csr_irq = irq;
// Done count
assign incr_irq_count = set_irq; // Done count just counts the number of interrupts since the last reset
assign clear_irq_count = (csr_address == 0) & (csr_write == 1) & (csr_byteenable[2] == 1) & (csr_writedata[16] == 1); // the LSB irq_count bit
assign clear_stop = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 0);
assign set_stopped_on_error = (done_strobe == 1) & (stop_on_error == 1) & (error != 0); // when clear_stop is set then the stopped_on_error register will be cleared
assign set_stopped_on_early_termination = (done_strobe == 1) & (stop_on_early_termination == 1) & (early_termination == 1); // when clear_stop is set then the stopped_on_early_termination register will be cleared
assign set_stop = ((csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[0] == 1)) | // host set the stop bit
(set_stopped_on_error == 1) | // SGDMA setup to stop when an error occurs from the write master
(set_stopped_on_early_termination == 1) ; // SGDMA setup to stop when the write master overflows
assign stop = control[0];
assign set_sw_reset = (csr_address == CONTROL_REGISTER_ADDRESS) & (csr_write == 1) & (csr_byteenable[0] == 1) & (csr_writedata[1] == 1);
assign clear_sw_reset = (sw_reset == 1) & (reset_stalled == 0);
assign sw_reset_strobe = control[1];
assign stop_on_error = control[2];
assign stop_on_early_termination = control[3];
assign global_interrupt_enable = control[4];
assign stop_descriptors = control[5];
assign csr_readdata = readdata_d1;
assign status = {irq_count, {6{1'b0}}, irq, stopped_on_early_termination, stopped_on_error, sw_reset, stop_state, response_buffer_full, response_buffer_empty, descriptor_buffer_full, descriptor_buffer_empty, busy}; // writing to the lower byte of the status register clears the irq bit
/**************************************** Combinational Signals *********************************************/
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire S,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign COUT = CIN | S;
end else begin : USE_FPGA
wire S_n;
assign S_n = ~S;
MUXCY and_inst
(
.O (COUT),
.CI (CIN),
.DI (1'b1),
.S (S_n)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire S,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign COUT = CIN | S;
end else begin : USE_FPGA
wire S_n;
assign S_n = ~S;
MUXCY and_inst
(
.O (COUT),
.CI (CIN),
.DI (1'b1),
.S (S_n)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire S,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign COUT = CIN | S;
end else begin : USE_FPGA
wire S_n;
assign S_n = ~S;
MUXCY and_inst
(
.O (COUT),
.CI (CIN),
.DI (1'b1),
.S (S_n)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN | I;
end else begin : USE_FPGA
OR2L or2l_inst1
(
.O(O),
.DI(CIN),
.SRI(I)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN | I;
end else begin : USE_FPGA
OR2L or2l_inst1
(
.O(O),
.DI(CIN),
.SRI(I)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN | I;
end else begin : USE_FPGA
OR2L or2l_inst1
(
.O(O),
.DI(CIN),
.SRI(I)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN | I;
end else begin : USE_FPGA
OR2L or2l_inst1
(
.O(O),
.DI(CIN),
.SRI(I)
);
end
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized OR with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_carry_latch_or #
(
parameter C_FAMILY = "virtex6"
// FPGA Family. Current version: virtex6 or spartan6.
)
(
input wire CIN,
input wire I,
output wire O
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Instantiate or use RTL code
/////////////////////////////////////////////////////////////////////////////
generate
if ( C_FAMILY == "rtl" ) begin : USE_RTL
assign O = CIN | I;
end else begin : USE_FPGA
OR2L or2l_inst1
(
.O(O),
.DI(CIN),
.SRI(I)
);
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 05/11/2009
Version 2.0
This logic recieves registers the byte address of the master when 'start'
is asserted. This block then barrelshifts the write data based on the byte
address to make sure that the input data (from the FIFO) is reformatted to
line up with memory properly.
The only throttling mechanism in this block is the FIFO not empty signal as
well as waitreqeust from the fabric.
Revision History:
1.0 Initial version
2.0 Removed 'bytes_to_next_boundary' and using the address to determine how
much out of alignment the master begins.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module ST_to_MM_Adapter (
clk,
reset,
enable,
address,
start,
waitrequest,
stall,
write_data,
fifo_data,
fifo_empty,
fifo_readack
);
parameter DATA_WIDTH = 32;
parameter BYTEENABLE_WIDTH_LOG2 = 2;
parameter ADDRESS_WIDTH = 32;
parameter UNALIGNED_ACCESS_ENABLE = 0; // when set to 0 this block will be a pass through (save on resources when unaligned accesses are not needed)
localparam BYTES_TO_NEXT_BOUNDARY_WIDTH = BYTEENABLE_WIDTH_LOG2 + 1; // 2, 3, 4, 5, 6 for byte enable widths of 2, 4, 8, 16, 32
input clk;
input reset;
input enable; // must make sure that the adapter doesn't accept data when a transfer it doesn't know what "bytes_to_transfer" is yet
input [ADDRESS_WIDTH-1:0] address;
input start; // one cycle strobe at the start of a transfer used to determine bytes_to_transfer
input waitrequest;
input stall;
output wire [DATA_WIDTH-1:0] write_data;
input [DATA_WIDTH-1:0] fifo_data;
input fifo_empty;
output wire fifo_readack;
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-1:0] bytes_to_next_boundary;
wire [DATA_WIDTH-1:0] barrelshifter_A;
wire [DATA_WIDTH-1:0] barrelshifter_B;
reg [DATA_WIDTH-1:0] barrelshifter_B_d1;
wire [DATA_WIDTH-1:0] combined_word; // bitwise OR between barrelshifter_A and barrelshifter_B (each has zero padding so that bytelanes don't overlap)
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one; // simplifies barrelshifter select logic
reg [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one_d1;
wire [DATA_WIDTH-1:0] barrelshifter_input_A [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_A inputs
wire [DATA_WIDTH-1:0] barrelshifter_input_B [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_B inputs
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
bytes_to_next_boundary_minus_one_d1 <= 0;
end
else if (start)
begin
bytes_to_next_boundary_minus_one_d1 <= bytes_to_next_boundary_minus_one;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
barrelshifter_B_d1 <= 0;
end
else
begin
if (start == 1)
begin
barrelshifter_B_d1 <= 0;
end
else if (fifo_readack == 1)
begin
barrelshifter_B_d1 <= barrelshifter_B;
end
end
end
assign bytes_to_next_boundary = (DATA_WIDTH/8) - address[BYTEENABLE_WIDTH_LOG2-1:0]; // bytes per word - unaligned byte offset = distance to next boundary
assign bytes_to_next_boundary_minus_one = bytes_to_next_boundary - 1;
assign combined_word = barrelshifter_A | barrelshifter_B_d1;
generate
genvar input_offset;
for(input_offset = 0; input_offset < (DATA_WIDTH/8); input_offset = input_offset + 1)
begin: barrel_shifter_inputs
assign barrelshifter_input_A[input_offset] = fifo_data << (8 * ((DATA_WIDTH/8)-(input_offset+1)));
assign barrelshifter_input_B[input_offset] = fifo_data >> (8 * (input_offset + 1));
end
endgenerate
assign barrelshifter_A = barrelshifter_input_A[bytes_to_next_boundary_minus_one_d1];
assign barrelshifter_B = barrelshifter_input_B[bytes_to_next_boundary_minus_one_d1];
generate
if (UNALIGNED_ACCESS_ENABLE == 1)
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1) & (start == 0);
assign write_data = combined_word;
end
else
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1);
assign write_data = fifo_data;
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 05/11/2009
Version 2.0
This logic recieves registers the byte address of the master when 'start'
is asserted. This block then barrelshifts the write data based on the byte
address to make sure that the input data (from the FIFO) is reformatted to
line up with memory properly.
The only throttling mechanism in this block is the FIFO not empty signal as
well as waitreqeust from the fabric.
Revision History:
1.0 Initial version
2.0 Removed 'bytes_to_next_boundary' and using the address to determine how
much out of alignment the master begins.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module ST_to_MM_Adapter (
clk,
reset,
enable,
address,
start,
waitrequest,
stall,
write_data,
fifo_data,
fifo_empty,
fifo_readack
);
parameter DATA_WIDTH = 32;
parameter BYTEENABLE_WIDTH_LOG2 = 2;
parameter ADDRESS_WIDTH = 32;
parameter UNALIGNED_ACCESS_ENABLE = 0; // when set to 0 this block will be a pass through (save on resources when unaligned accesses are not needed)
localparam BYTES_TO_NEXT_BOUNDARY_WIDTH = BYTEENABLE_WIDTH_LOG2 + 1; // 2, 3, 4, 5, 6 for byte enable widths of 2, 4, 8, 16, 32
input clk;
input reset;
input enable; // must make sure that the adapter doesn't accept data when a transfer it doesn't know what "bytes_to_transfer" is yet
input [ADDRESS_WIDTH-1:0] address;
input start; // one cycle strobe at the start of a transfer used to determine bytes_to_transfer
input waitrequest;
input stall;
output wire [DATA_WIDTH-1:0] write_data;
input [DATA_WIDTH-1:0] fifo_data;
input fifo_empty;
output wire fifo_readack;
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-1:0] bytes_to_next_boundary;
wire [DATA_WIDTH-1:0] barrelshifter_A;
wire [DATA_WIDTH-1:0] barrelshifter_B;
reg [DATA_WIDTH-1:0] barrelshifter_B_d1;
wire [DATA_WIDTH-1:0] combined_word; // bitwise OR between barrelshifter_A and barrelshifter_B (each has zero padding so that bytelanes don't overlap)
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one; // simplifies barrelshifter select logic
reg [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one_d1;
wire [DATA_WIDTH-1:0] barrelshifter_input_A [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_A inputs
wire [DATA_WIDTH-1:0] barrelshifter_input_B [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_B inputs
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
bytes_to_next_boundary_minus_one_d1 <= 0;
end
else if (start)
begin
bytes_to_next_boundary_minus_one_d1 <= bytes_to_next_boundary_minus_one;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
barrelshifter_B_d1 <= 0;
end
else
begin
if (start == 1)
begin
barrelshifter_B_d1 <= 0;
end
else if (fifo_readack == 1)
begin
barrelshifter_B_d1 <= barrelshifter_B;
end
end
end
assign bytes_to_next_boundary = (DATA_WIDTH/8) - address[BYTEENABLE_WIDTH_LOG2-1:0]; // bytes per word - unaligned byte offset = distance to next boundary
assign bytes_to_next_boundary_minus_one = bytes_to_next_boundary - 1;
assign combined_word = barrelshifter_A | barrelshifter_B_d1;
generate
genvar input_offset;
for(input_offset = 0; input_offset < (DATA_WIDTH/8); input_offset = input_offset + 1)
begin: barrel_shifter_inputs
assign barrelshifter_input_A[input_offset] = fifo_data << (8 * ((DATA_WIDTH/8)-(input_offset+1)));
assign barrelshifter_input_B[input_offset] = fifo_data >> (8 * (input_offset + 1));
end
endgenerate
assign barrelshifter_A = barrelshifter_input_A[bytes_to_next_boundary_minus_one_d1];
assign barrelshifter_B = barrelshifter_input_B[bytes_to_next_boundary_minus_one_d1];
generate
if (UNALIGNED_ACCESS_ENABLE == 1)
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1) & (start == 0);
assign write_data = combined_word;
end
else
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1);
assign write_data = fifo_data;
end
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 05/11/2009
Version 2.0
This logic recieves registers the byte address of the master when 'start'
is asserted. This block then barrelshifts the write data based on the byte
address to make sure that the input data (from the FIFO) is reformatted to
line up with memory properly.
The only throttling mechanism in this block is the FIFO not empty signal as
well as waitreqeust from the fabric.
Revision History:
1.0 Initial version
2.0 Removed 'bytes_to_next_boundary' and using the address to determine how
much out of alignment the master begins.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module ST_to_MM_Adapter (
clk,
reset,
enable,
address,
start,
waitrequest,
stall,
write_data,
fifo_data,
fifo_empty,
fifo_readack
);
parameter DATA_WIDTH = 32;
parameter BYTEENABLE_WIDTH_LOG2 = 2;
parameter ADDRESS_WIDTH = 32;
parameter UNALIGNED_ACCESS_ENABLE = 0; // when set to 0 this block will be a pass through (save on resources when unaligned accesses are not needed)
localparam BYTES_TO_NEXT_BOUNDARY_WIDTH = BYTEENABLE_WIDTH_LOG2 + 1; // 2, 3, 4, 5, 6 for byte enable widths of 2, 4, 8, 16, 32
input clk;
input reset;
input enable; // must make sure that the adapter doesn't accept data when a transfer it doesn't know what "bytes_to_transfer" is yet
input [ADDRESS_WIDTH-1:0] address;
input start; // one cycle strobe at the start of a transfer used to determine bytes_to_transfer
input waitrequest;
input stall;
output wire [DATA_WIDTH-1:0] write_data;
input [DATA_WIDTH-1:0] fifo_data;
input fifo_empty;
output wire fifo_readack;
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-1:0] bytes_to_next_boundary;
wire [DATA_WIDTH-1:0] barrelshifter_A;
wire [DATA_WIDTH-1:0] barrelshifter_B;
reg [DATA_WIDTH-1:0] barrelshifter_B_d1;
wire [DATA_WIDTH-1:0] combined_word; // bitwise OR between barrelshifter_A and barrelshifter_B (each has zero padding so that bytelanes don't overlap)
wire [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one; // simplifies barrelshifter select logic
reg [BYTES_TO_NEXT_BOUNDARY_WIDTH-2:0] bytes_to_next_boundary_minus_one_d1;
wire [DATA_WIDTH-1:0] barrelshifter_input_A [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_A inputs
wire [DATA_WIDTH-1:0] barrelshifter_input_B [0:((DATA_WIDTH/8)-1)]; // will be used to create barrelshifter_B inputs
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
bytes_to_next_boundary_minus_one_d1 <= 0;
end
else if (start)
begin
bytes_to_next_boundary_minus_one_d1 <= bytes_to_next_boundary_minus_one;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
barrelshifter_B_d1 <= 0;
end
else
begin
if (start == 1)
begin
barrelshifter_B_d1 <= 0;
end
else if (fifo_readack == 1)
begin
barrelshifter_B_d1 <= barrelshifter_B;
end
end
end
assign bytes_to_next_boundary = (DATA_WIDTH/8) - address[BYTEENABLE_WIDTH_LOG2-1:0]; // bytes per word - unaligned byte offset = distance to next boundary
assign bytes_to_next_boundary_minus_one = bytes_to_next_boundary - 1;
assign combined_word = barrelshifter_A | barrelshifter_B_d1;
generate
genvar input_offset;
for(input_offset = 0; input_offset < (DATA_WIDTH/8); input_offset = input_offset + 1)
begin: barrel_shifter_inputs
assign barrelshifter_input_A[input_offset] = fifo_data << (8 * ((DATA_WIDTH/8)-(input_offset+1)));
assign barrelshifter_input_B[input_offset] = fifo_data >> (8 * (input_offset + 1));
end
endgenerate
assign barrelshifter_A = barrelshifter_input_A[bytes_to_next_boundary_minus_one_d1];
assign barrelshifter_B = barrelshifter_input_B[bytes_to_next_boundary_minus_one_d1];
generate
if (UNALIGNED_ACCESS_ENABLE == 1)
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1) & (start == 0);
assign write_data = combined_word;
end
else
begin
assign fifo_readack = (fifo_empty == 0) & (stall == 0) & (waitrequest == 0) & (enable == 1);
assign write_data = fifo_data;
end
endgenerate
endmodule
|
module fake_nonburstboundary #
(
parameter WIDTH_D = 256,
parameter S_WIDTH_A = 26,
parameter M_WIDTH_A = S_WIDTH_A+$clog2(WIDTH_D/8),
parameter BURSTCOUNT_WIDTH = 6,
parameter BYTEENABLE_WIDTH = WIDTH_D,
parameter MAX_PENDING_READS = 64
)
(
input clk,
input resetn,
// Slave port
input [S_WIDTH_A-1:0] slave_address, // Word address
input [WIDTH_D-1:0] slave_writedata,
input slave_read,
input slave_write,
input [BURSTCOUNT_WIDTH-1:0] slave_burstcount,
input [BYTEENABLE_WIDTH-1:0] slave_byteenable,
output slave_waitrequest,
output [WIDTH_D-1:0] slave_readdata,
output slave_readdatavalid,
output [M_WIDTH_A-1:0] master_address, // Byte address
output [WIDTH_D-1:0] master_writedata,
output master_read,
output master_write,
output [BURSTCOUNT_WIDTH-1:0] master_burstcount,
output [BYTEENABLE_WIDTH-1:0] master_byteenable,
input master_waitrequest,
input [WIDTH_D-1:0] master_readdata,
input master_readdatavalid
);
assign master_read = slave_read;
assign master_write = slave_write;
assign master_writedata = slave_writedata;
assign master_burstcount = slave_burstcount;
assign master_address = {slave_address,{$clog2(WIDTH_D/8){1'b0}}}; //byteaddr
assign master_byteenable = slave_byteenable;
assign slave_waitrequest = master_waitrequest;
assign slave_readdatavalid = master_readdatavalid;
assign slave_readdata = master_readdata;
endmodule
|
module fake_nonburstboundary #
(
parameter WIDTH_D = 256,
parameter S_WIDTH_A = 26,
parameter M_WIDTH_A = S_WIDTH_A+$clog2(WIDTH_D/8),
parameter BURSTCOUNT_WIDTH = 6,
parameter BYTEENABLE_WIDTH = WIDTH_D,
parameter MAX_PENDING_READS = 64
)
(
input clk,
input resetn,
// Slave port
input [S_WIDTH_A-1:0] slave_address, // Word address
input [WIDTH_D-1:0] slave_writedata,
input slave_read,
input slave_write,
input [BURSTCOUNT_WIDTH-1:0] slave_burstcount,
input [BYTEENABLE_WIDTH-1:0] slave_byteenable,
output slave_waitrequest,
output [WIDTH_D-1:0] slave_readdata,
output slave_readdatavalid,
output [M_WIDTH_A-1:0] master_address, // Byte address
output [WIDTH_D-1:0] master_writedata,
output master_read,
output master_write,
output [BURSTCOUNT_WIDTH-1:0] master_burstcount,
output [BYTEENABLE_WIDTH-1:0] master_byteenable,
input master_waitrequest,
input [WIDTH_D-1:0] master_readdata,
input master_readdatavalid
);
assign master_read = slave_read;
assign master_write = slave_write;
assign master_writedata = slave_writedata;
assign master_burstcount = slave_burstcount;
assign master_address = {slave_address,{$clog2(WIDTH_D/8){1'b0}}}; //byteaddr
assign master_byteenable = slave_byteenable;
assign slave_waitrequest = master_waitrequest;
assign slave_readdatavalid = master_readdatavalid;
assign slave_readdata = master_readdata;
endmodule
|
module fake_nonburstboundary #
(
parameter WIDTH_D = 256,
parameter S_WIDTH_A = 26,
parameter M_WIDTH_A = S_WIDTH_A+$clog2(WIDTH_D/8),
parameter BURSTCOUNT_WIDTH = 6,
parameter BYTEENABLE_WIDTH = WIDTH_D,
parameter MAX_PENDING_READS = 64
)
(
input clk,
input resetn,
// Slave port
input [S_WIDTH_A-1:0] slave_address, // Word address
input [WIDTH_D-1:0] slave_writedata,
input slave_read,
input slave_write,
input [BURSTCOUNT_WIDTH-1:0] slave_burstcount,
input [BYTEENABLE_WIDTH-1:0] slave_byteenable,
output slave_waitrequest,
output [WIDTH_D-1:0] slave_readdata,
output slave_readdatavalid,
output [M_WIDTH_A-1:0] master_address, // Byte address
output [WIDTH_D-1:0] master_writedata,
output master_read,
output master_write,
output [BURSTCOUNT_WIDTH-1:0] master_burstcount,
output [BYTEENABLE_WIDTH-1:0] master_byteenable,
input master_waitrequest,
input [WIDTH_D-1:0] master_readdata,
input master_readdatavalid
);
assign master_read = slave_read;
assign master_write = slave_write;
assign master_writedata = slave_writedata;
assign master_burstcount = slave_burstcount;
assign master_address = {slave_address,{$clog2(WIDTH_D/8){1'b0}}}; //byteaddr
assign master_byteenable = slave_byteenable;
assign slave_waitrequest = master_waitrequest;
assign slave_readdatavalid = master_readdatavalid;
assign slave_readdata = master_readdata;
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 6;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 6;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 6;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 6;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar bit_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 6;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (bit_cnt = 0; bit_cnt < C_NUM_LUT ; bit_cnt = bit_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[bit_cnt] = ( a_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ==
b_local[bit_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[bit_cnt+1]),
.CIN (carry_local[bit_cnt]),
.S (sel[bit_cnt])
);
end // end for bit_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_mask_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] M,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 3;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
assign m_local = M;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
// -- (c) Copyright 2010 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// Description:
// Optimized COMPARATOR (against constant) with generic_baseblocks_v2_1_0_carry logic.
//
// Verilog-standard: Verilog 2001
//--------------------------------------------------------------------------
//
// Structure:
//
//
//--------------------------------------------------------------------------
`timescale 1ps/1ps
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_comparator_mask_static #
(
parameter C_FAMILY = "virtex6",
// FPGA Family. Current version: virtex6 or spartan6.
parameter C_VALUE = 4'b0,
// Static value to compare against.
parameter integer C_DATA_WIDTH = 4
// Data width for comparator.
)
(
input wire CIN,
input wire [C_DATA_WIDTH-1:0] A,
input wire [C_DATA_WIDTH-1:0] M,
output wire COUT
);
/////////////////////////////////////////////////////////////////////////////
// Variables for generating parameter controlled instances.
/////////////////////////////////////////////////////////////////////////////
// Generate variable for bit vector.
genvar lut_cnt;
/////////////////////////////////////////////////////////////////////////////
// Local params
/////////////////////////////////////////////////////////////////////////////
// Bits per LUT for this architecture.
localparam integer C_BITS_PER_LUT = 3;
// Constants for packing levels.
localparam integer C_NUM_LUT = ( C_DATA_WIDTH + C_BITS_PER_LUT - 1 ) / C_BITS_PER_LUT;
//
localparam integer C_FIX_DATA_WIDTH = ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) ? C_NUM_LUT * C_BITS_PER_LUT :
C_DATA_WIDTH;
/////////////////////////////////////////////////////////////////////////////
// Functions
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Internal signals
/////////////////////////////////////////////////////////////////////////////
wire [C_FIX_DATA_WIDTH-1:0] a_local;
wire [C_FIX_DATA_WIDTH-1:0] b_local;
wire [C_FIX_DATA_WIDTH-1:0] m_local;
wire [C_NUM_LUT-1:0] sel;
wire [C_NUM_LUT:0] carry_local;
/////////////////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////
generate
// Assign input to local vectors.
assign carry_local[0] = CIN;
// Extend input data to fit.
if ( C_NUM_LUT * C_BITS_PER_LUT > C_DATA_WIDTH ) begin : USE_EXTENDED_DATA
assign a_local = {A, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign b_local = {C_VALUE, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
assign m_local = {M, {C_NUM_LUT * C_BITS_PER_LUT - C_DATA_WIDTH{1'b0}}};
end else begin : NO_EXTENDED_DATA
assign a_local = A;
assign b_local = C_VALUE;
assign m_local = M;
end
// Instantiate one generic_baseblocks_v2_1_0_carry and per level.
for (lut_cnt = 0; lut_cnt < C_NUM_LUT ; lut_cnt = lut_cnt + 1) begin : LUT_LEVEL
// Create the local select signal
assign sel[lut_cnt] = ( ( a_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) ==
( b_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] &
m_local[lut_cnt*C_BITS_PER_LUT +: C_BITS_PER_LUT] ) );
// Instantiate each LUT level.
generic_baseblocks_v2_1_0_carry_and #
(
.C_FAMILY(C_FAMILY)
) compare_inst
(
.COUT (carry_local[lut_cnt+1]),
.CIN (carry_local[lut_cnt]),
.S (sel[lut_cnt])
);
end // end for lut_cnt
// Assign output from local vector.
assign COUT = carry_local[C_NUM_LUT];
endgenerate
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/05/2009
This FIFO module behaves similar to scfifo in legacy mode. It has an
output latency of 1 or 2 clock cycles and does not support look ahead
mode. Unlike scfifo this FIFO allows you to write to any of the byte
lanes before committing the word. This allows you to write the full
word in multiple clock cycles and then you assert the "push" signal to
commit the data. To read data out of the FIFO assert "pop" and wait
1 or 2 clock cycles for valid data to arrive.
Version 1.1
1.0 - Uses 'altsyncram' which will not be optimized away if the
FIFO inputs are grounded. This will need to be replaced
with inferred memory once Quartus II supports inferred
with byte enables (currently it instantiates multiple
seperate memories.
1.1 - Seperated the asynchronous reset into seperate async. and sync.
resets.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module fifo_with_byteenables (
clk,
areset,
sreset,
write_data,
write_byteenables,
write,
push,
read_data,
pop,
used,
full,
empty
);
parameter DATA_WIDTH = 32;
parameter FIFO_DEPTH = 128;
parameter FIFO_DEPTH_LOG2 = 7; // this impacts the width of the used port so it can't be local
parameter LATENCY = 1; // number of clock cycles after asserting 'pop' that valid data comes out
input clk;
input areset;
input sreset;
input [DATA_WIDTH-1:0] write_data;
input [(DATA_WIDTH/8)-1:0] write_byteenables;
input write;
input push; // when you have written to all the byte lanes assert this to commit the word (you can use it at the same time as the byte enables)
output wire [DATA_WIDTH-1:0] read_data;
input pop; // use this to read a word out of the FIFO
output wire [FIFO_DEPTH_LOG2:0] used;
output wire full;
output wire empty;
reg [FIFO_DEPTH_LOG2-1:0] write_address;
reg [FIFO_DEPTH_LOG2-1:0] read_address;
reg [FIFO_DEPTH_LOG2:0] internal_used;
wire internal_full;
wire internal_empty;
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
write_address <= 0;
end
else
begin
if (sreset)
begin
write_address <= 0;
end
else if (push == 1)
begin
write_address <= write_address + 1'b1;
end
end
end
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
read_address <= 0;
end
else
begin
if (sreset)
begin
read_address <= 0;
end
else if (pop == 1)
begin
read_address <= read_address + 1'b1;
end
end
end
// TODO: Change this to an inferrered RAM when Quartus II supports byte enables for inferred RAM
altsyncram the_dp_ram (
.clock0 (clk),
.wren_a (write),
.byteena_a (write_byteenables),
.data_a (write_data),
.address_a (write_address),
.q_b (read_data),
.address_b (read_address)
);
defparam the_dp_ram.operation_mode = "DUAL_PORT"; // simple dual port (one read, one write port)
defparam the_dp_ram.lpm_type = "altsyncram";
defparam the_dp_ram.read_during_write_mode_mixed_ports = "DONT_CARE";
defparam the_dp_ram.power_up_uninitialized = "TRUE";
defparam the_dp_ram.byte_size = 8;
defparam the_dp_ram.width_a = DATA_WIDTH;
defparam the_dp_ram.width_b = DATA_WIDTH;
defparam the_dp_ram.widthad_a = FIFO_DEPTH_LOG2;
defparam the_dp_ram.widthad_b = FIFO_DEPTH_LOG2;
defparam the_dp_ram.width_byteena_a = (DATA_WIDTH/8);
defparam the_dp_ram.numwords_a = FIFO_DEPTH;
defparam the_dp_ram.numwords_b = FIFO_DEPTH;
defparam the_dp_ram.address_reg_b = "CLOCK0";
defparam the_dp_ram.outdata_reg_b = (LATENCY == 2)? "CLOCK0" : "UNREGISTERED";
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
internal_used <= 0;
end
else
begin
if (sreset)
begin
internal_used <= 0;
end
else
begin
case ({push, pop})
2'b01: internal_used <= internal_used - 1'b1;
2'b10: internal_used <= internal_used + 1'b1;
default: internal_used <= internal_used;
endcase
end
end
end
assign internal_empty = (read_address == write_address) & (internal_used == 0);
assign internal_full = (write_address == read_address) & (internal_used != 0);
assign used = internal_used; // this signal reflects the number of words in the FIFO
assign empty = internal_empty; // combinational so it'll glitch a little bit
assign full = internal_full; // dito
endmodule
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 07/05/2009
This FIFO module behaves similar to scfifo in legacy mode. It has an
output latency of 1 or 2 clock cycles and does not support look ahead
mode. Unlike scfifo this FIFO allows you to write to any of the byte
lanes before committing the word. This allows you to write the full
word in multiple clock cycles and then you assert the "push" signal to
commit the data. To read data out of the FIFO assert "pop" and wait
1 or 2 clock cycles for valid data to arrive.
Version 1.1
1.0 - Uses 'altsyncram' which will not be optimized away if the
FIFO inputs are grounded. This will need to be replaced
with inferred memory once Quartus II supports inferred
with byte enables (currently it instantiates multiple
seperate memories.
1.1 - Seperated the asynchronous reset into seperate async. and sync.
resets.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module fifo_with_byteenables (
clk,
areset,
sreset,
write_data,
write_byteenables,
write,
push,
read_data,
pop,
used,
full,
empty
);
parameter DATA_WIDTH = 32;
parameter FIFO_DEPTH = 128;
parameter FIFO_DEPTH_LOG2 = 7; // this impacts the width of the used port so it can't be local
parameter LATENCY = 1; // number of clock cycles after asserting 'pop' that valid data comes out
input clk;
input areset;
input sreset;
input [DATA_WIDTH-1:0] write_data;
input [(DATA_WIDTH/8)-1:0] write_byteenables;
input write;
input push; // when you have written to all the byte lanes assert this to commit the word (you can use it at the same time as the byte enables)
output wire [DATA_WIDTH-1:0] read_data;
input pop; // use this to read a word out of the FIFO
output wire [FIFO_DEPTH_LOG2:0] used;
output wire full;
output wire empty;
reg [FIFO_DEPTH_LOG2-1:0] write_address;
reg [FIFO_DEPTH_LOG2-1:0] read_address;
reg [FIFO_DEPTH_LOG2:0] internal_used;
wire internal_full;
wire internal_empty;
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
write_address <= 0;
end
else
begin
if (sreset)
begin
write_address <= 0;
end
else if (push == 1)
begin
write_address <= write_address + 1'b1;
end
end
end
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
read_address <= 0;
end
else
begin
if (sreset)
begin
read_address <= 0;
end
else if (pop == 1)
begin
read_address <= read_address + 1'b1;
end
end
end
// TODO: Change this to an inferrered RAM when Quartus II supports byte enables for inferred RAM
altsyncram the_dp_ram (
.clock0 (clk),
.wren_a (write),
.byteena_a (write_byteenables),
.data_a (write_data),
.address_a (write_address),
.q_b (read_data),
.address_b (read_address)
);
defparam the_dp_ram.operation_mode = "DUAL_PORT"; // simple dual port (one read, one write port)
defparam the_dp_ram.lpm_type = "altsyncram";
defparam the_dp_ram.read_during_write_mode_mixed_ports = "DONT_CARE";
defparam the_dp_ram.power_up_uninitialized = "TRUE";
defparam the_dp_ram.byte_size = 8;
defparam the_dp_ram.width_a = DATA_WIDTH;
defparam the_dp_ram.width_b = DATA_WIDTH;
defparam the_dp_ram.widthad_a = FIFO_DEPTH_LOG2;
defparam the_dp_ram.widthad_b = FIFO_DEPTH_LOG2;
defparam the_dp_ram.width_byteena_a = (DATA_WIDTH/8);
defparam the_dp_ram.numwords_a = FIFO_DEPTH;
defparam the_dp_ram.numwords_b = FIFO_DEPTH;
defparam the_dp_ram.address_reg_b = "CLOCK0";
defparam the_dp_ram.outdata_reg_b = (LATENCY == 2)? "CLOCK0" : "UNREGISTERED";
always @ (posedge clk or posedge areset)
begin
if (areset)
begin
internal_used <= 0;
end
else
begin
if (sreset)
begin
internal_used <= 0;
end
else
begin
case ({push, pop})
2'b01: internal_used <= internal_used - 1'b1;
2'b10: internal_used <= internal_used + 1'b1;
default: internal_used <= internal_used;
endcase
end
end
end
assign internal_empty = (read_address == write_address) & (internal_used == 0);
assign internal_full = (write_address == read_address) & (internal_used != 0);
assign used = internal_used; // this signal reflects the number of words in the FIFO
assign empty = internal_empty; // combinational so it'll glitch a little bit
assign full = internal_full; // dito
endmodule
|
(** * Extraction: Extracting ML from Coq *)
(* $Date: 2013-01-16 22:29:57 -0500 (Wed, 16 Jan 2013) $ *)
(** * Basic Extraction *)
(** In its simplest form, program extraction from Coq is completely straightforward. *)
(** First we say what language we want to extract into. Options are OCaml (the
most mature), Haskell (which mostly works), and Scheme (a bit out
of date). *)
Extraction Language Ocaml.
(** Now we load up the Coq environment with some definitions, either
directly or by importing them from other modules. *)
Require Import SfLib.
Require Import ImpCEvalFun.
(** Finally, we tell Coq the name of a definition to extract and the
name of a file to put the extracted code into. *)
Extraction "imp1.ml" ceval_step.
(** When Coq processes this command, it generates a file [imp1.ml]
containing an extracted version of [ceval_step], together with
everything that it recursively depends on. Have a look at this
file now. *)
(* ############################################################## *)
(** * Controlling Extraction of Specific Types *)
(** We can tell Coq to extract certain [Inductive] definitions to
specific OCaml types. For each one, we must say
- how the Coq type itself should be represented in OCaml, and
- how each constructor should be translated. *)
Extract Inductive bool => "bool" [ "true" "false" ].
(** Also, for non-enumeration types (where the constructors take
arguments), we give an OCaml expression that can be used as a
"recursor" over elements of the type. (Think Church numerals.) *)
Extract Inductive nat => "int"
[ "0" "(fun x -> x + 1)" ]
"(fun zero succ n ->
if n=0 then zero () else succ (n-1))".
(** We can also extract defined constants to specific OCaml terms or
operators. *)
Extract Constant plus => "( + )".
Extract Constant mult => "( * )".
Extract Constant beq_nat => "( = )".
(** Important: It is entirely _your responsibility_ to make sure that
the translations you're proving make sense. For example, it might
be tempting to include this one
Extract Constant minus => "( - )".
but doing so could lead to serious confusion! (Why?)
*)
Extraction "imp2.ml" ceval_step.
(** Have a look at the file [imp2.ml]. Notice how the fundamental
definitions have changed from [imp1.ml]. *)
(* ############################################################## *)
(** * A Complete Example *)
(** To use our extracted evaluator to run Imp programs, all we need to
add is a tiny driver program that calls the evaluator and somehow
prints out the result.
For simplicity, we'll print results by dumping out the first four
memory locations in the final state.
Also, to make it easier to type in examples, let's extract a
parser from the [ImpParser] Coq module. To do this, we need a few
more declarations to set up the right correspondence between Coq
strings and lists of OCaml characters. *)
Require Import Ascii String.
Extract Inductive ascii => char
[
"(* If this appears, you're using Ascii internals. Please don't *) (fun (b0,b1,b2,b3,b4,b5,b6,b7) -> let f b i = if b then 1 lsl i else 0 in Char.chr (f b0 0 + f b1 1 + f b2 2 + f b3 3 + f b4 4 + f b5 5 + f b6 6 + f b7 7))"
]
"(* If this appears, you're using Ascii internals. Please don't *) (fun f c -> let n = Char.code c in let h i = (n land (1 lsl i)) <> 0 in f (h 0) (h 1) (h 2) (h 3) (h 4) (h 5) (h 6) (h 7))".
Extract Constant zero => "'\000'".
Extract Constant one => "'\001'".
Extract Constant shift =>
"fun b c -> Char.chr (((Char.code c) lsl 1) land 255 + if b then 1 else 0)".
Extract Inlined Constant ascii_dec => "(=)".
(** We also need one more variant of booleans. *)
Extract Inductive sumbool => "bool" ["true" "false"].
(** The extraction is the same as always. *)
Require Import Imp.
Require Import ImpParser.
Extraction "imp.ml" empty_state ceval_step parse.
(** Now let's run our generated Imp evaluator. First, have a look at
[impdriver.ml]. (This was written by hand, not extracted.)
Next, compile the driver together with the extracted code and
execute it, as follows.
<<
ocamlc -w -20 -w -26 -o impdriver imp.mli imp.ml impdriver.ml
./impdriver
>>
(The [-w] flags to [ocamlc] are just there to suppress a few
spurious warnings.) *)
(* ############################################################## *)
(** * Discussion *)
(** Since we've proved that the [ceval_step] function behaves the same
as the [ceval] relation in an appropriate sense, the extracted
program can be viewed as a _certified_ Imp interpreter. (Of
course, the parser is not certified in any interesting sense,
since we didn't prove anything about it.) *)
|
(** * Extraction: Extracting ML from Coq *)
(* $Date: 2013-01-16 22:29:57 -0500 (Wed, 16 Jan 2013) $ *)
(** * Basic Extraction *)
(** In its simplest form, program extraction from Coq is completely straightforward. *)
(** First we say what language we want to extract into. Options are OCaml (the
most mature), Haskell (which mostly works), and Scheme (a bit out
of date). *)
Extraction Language Ocaml.
(** Now we load up the Coq environment with some definitions, either
directly or by importing them from other modules. *)
Require Import SfLib.
Require Import ImpCEvalFun.
(** Finally, we tell Coq the name of a definition to extract and the
name of a file to put the extracted code into. *)
Extraction "imp1.ml" ceval_step.
(** When Coq processes this command, it generates a file [imp1.ml]
containing an extracted version of [ceval_step], together with
everything that it recursively depends on. Have a look at this
file now. *)
(* ############################################################## *)
(** * Controlling Extraction of Specific Types *)
(** We can tell Coq to extract certain [Inductive] definitions to
specific OCaml types. For each one, we must say
- how the Coq type itself should be represented in OCaml, and
- how each constructor should be translated. *)
Extract Inductive bool => "bool" [ "true" "false" ].
(** Also, for non-enumeration types (where the constructors take
arguments), we give an OCaml expression that can be used as a
"recursor" over elements of the type. (Think Church numerals.) *)
Extract Inductive nat => "int"
[ "0" "(fun x -> x + 1)" ]
"(fun zero succ n ->
if n=0 then zero () else succ (n-1))".
(** We can also extract defined constants to specific OCaml terms or
operators. *)
Extract Constant plus => "( + )".
Extract Constant mult => "( * )".
Extract Constant beq_nat => "( = )".
(** Important: It is entirely _your responsibility_ to make sure that
the translations you're proving make sense. For example, it might
be tempting to include this one
Extract Constant minus => "( - )".
but doing so could lead to serious confusion! (Why?)
*)
Extraction "imp2.ml" ceval_step.
(** Have a look at the file [imp2.ml]. Notice how the fundamental
definitions have changed from [imp1.ml]. *)
(* ############################################################## *)
(** * A Complete Example *)
(** To use our extracted evaluator to run Imp programs, all we need to
add is a tiny driver program that calls the evaluator and somehow
prints out the result.
For simplicity, we'll print results by dumping out the first four
memory locations in the final state.
Also, to make it easier to type in examples, let's extract a
parser from the [ImpParser] Coq module. To do this, we need a few
more declarations to set up the right correspondence between Coq
strings and lists of OCaml characters. *)
Require Import Ascii String.
Extract Inductive ascii => char
[
"(* If this appears, you're using Ascii internals. Please don't *) (fun (b0,b1,b2,b3,b4,b5,b6,b7) -> let f b i = if b then 1 lsl i else 0 in Char.chr (f b0 0 + f b1 1 + f b2 2 + f b3 3 + f b4 4 + f b5 5 + f b6 6 + f b7 7))"
]
"(* If this appears, you're using Ascii internals. Please don't *) (fun f c -> let n = Char.code c in let h i = (n land (1 lsl i)) <> 0 in f (h 0) (h 1) (h 2) (h 3) (h 4) (h 5) (h 6) (h 7))".
Extract Constant zero => "'\000'".
Extract Constant one => "'\001'".
Extract Constant shift =>
"fun b c -> Char.chr (((Char.code c) lsl 1) land 255 + if b then 1 else 0)".
Extract Inlined Constant ascii_dec => "(=)".
(** We also need one more variant of booleans. *)
Extract Inductive sumbool => "bool" ["true" "false"].
(** The extraction is the same as always. *)
Require Import Imp.
Require Import ImpParser.
Extraction "imp.ml" empty_state ceval_step parse.
(** Now let's run our generated Imp evaluator. First, have a look at
[impdriver.ml]. (This was written by hand, not extracted.)
Next, compile the driver together with the extracted code and
execute it, as follows.
<<
ocamlc -w -20 -w -26 -o impdriver imp.mli imp.ml impdriver.ml
./impdriver
>>
(The [-w] flags to [ocamlc] are just there to suppress a few
spurious warnings.) *)
(* ############################################################## *)
(** * Discussion *)
(** Since we've proved that the [ceval_step] function behaves the same
as the [ceval] relation in an appropriate sense, the extracted
program can be viewed as a _certified_ Imp interpreter. (Of
course, the parser is not certified in any interesting sense,
since we didn't prove anything about it.) *)
|
(** * Extraction: Extracting ML from Coq *)
(* $Date: 2013-01-16 22:29:57 -0500 (Wed, 16 Jan 2013) $ *)
(** * Basic Extraction *)
(** In its simplest form, program extraction from Coq is completely straightforward. *)
(** First we say what language we want to extract into. Options are OCaml (the
most mature), Haskell (which mostly works), and Scheme (a bit out
of date). *)
Extraction Language Ocaml.
(** Now we load up the Coq environment with some definitions, either
directly or by importing them from other modules. *)
Require Import SfLib.
Require Import ImpCEvalFun.
(** Finally, we tell Coq the name of a definition to extract and the
name of a file to put the extracted code into. *)
Extraction "imp1.ml" ceval_step.
(** When Coq processes this command, it generates a file [imp1.ml]
containing an extracted version of [ceval_step], together with
everything that it recursively depends on. Have a look at this
file now. *)
(* ############################################################## *)
(** * Controlling Extraction of Specific Types *)
(** We can tell Coq to extract certain [Inductive] definitions to
specific OCaml types. For each one, we must say
- how the Coq type itself should be represented in OCaml, and
- how each constructor should be translated. *)
Extract Inductive bool => "bool" [ "true" "false" ].
(** Also, for non-enumeration types (where the constructors take
arguments), we give an OCaml expression that can be used as a
"recursor" over elements of the type. (Think Church numerals.) *)
Extract Inductive nat => "int"
[ "0" "(fun x -> x + 1)" ]
"(fun zero succ n ->
if n=0 then zero () else succ (n-1))".
(** We can also extract defined constants to specific OCaml terms or
operators. *)
Extract Constant plus => "( + )".
Extract Constant mult => "( * )".
Extract Constant beq_nat => "( = )".
(** Important: It is entirely _your responsibility_ to make sure that
the translations you're proving make sense. For example, it might
be tempting to include this one
Extract Constant minus => "( - )".
but doing so could lead to serious confusion! (Why?)
*)
Extraction "imp2.ml" ceval_step.
(** Have a look at the file [imp2.ml]. Notice how the fundamental
definitions have changed from [imp1.ml]. *)
(* ############################################################## *)
(** * A Complete Example *)
(** To use our extracted evaluator to run Imp programs, all we need to
add is a tiny driver program that calls the evaluator and somehow
prints out the result.
For simplicity, we'll print results by dumping out the first four
memory locations in the final state.
Also, to make it easier to type in examples, let's extract a
parser from the [ImpParser] Coq module. To do this, we need a few
more declarations to set up the right correspondence between Coq
strings and lists of OCaml characters. *)
Require Import Ascii String.
Extract Inductive ascii => char
[
"(* If this appears, you're using Ascii internals. Please don't *) (fun (b0,b1,b2,b3,b4,b5,b6,b7) -> let f b i = if b then 1 lsl i else 0 in Char.chr (f b0 0 + f b1 1 + f b2 2 + f b3 3 + f b4 4 + f b5 5 + f b6 6 + f b7 7))"
]
"(* If this appears, you're using Ascii internals. Please don't *) (fun f c -> let n = Char.code c in let h i = (n land (1 lsl i)) <> 0 in f (h 0) (h 1) (h 2) (h 3) (h 4) (h 5) (h 6) (h 7))".
Extract Constant zero => "'\000'".
Extract Constant one => "'\001'".
Extract Constant shift =>
"fun b c -> Char.chr (((Char.code c) lsl 1) land 255 + if b then 1 else 0)".
Extract Inlined Constant ascii_dec => "(=)".
(** We also need one more variant of booleans. *)
Extract Inductive sumbool => "bool" ["true" "false"].
(** The extraction is the same as always. *)
Require Import Imp.
Require Import ImpParser.
Extraction "imp.ml" empty_state ceval_step parse.
(** Now let's run our generated Imp evaluator. First, have a look at
[impdriver.ml]. (This was written by hand, not extracted.)
Next, compile the driver together with the extracted code and
execute it, as follows.
<<
ocamlc -w -20 -w -26 -o impdriver imp.mli imp.ml impdriver.ml
./impdriver
>>
(The [-w] flags to [ocamlc] are just there to suppress a few
spurious warnings.) *)
(* ############################################################## *)
(** * Discussion *)
(** Since we've proved that the [ceval_step] function behaves the same
as the [ceval] relation in an appropriate sense, the extracted
program can be viewed as a _certified_ Imp interpreter. (Of
course, the parser is not certified in any interesting sense,
since we didn't prove anything about it.) *)
|
// -- (c) Copyright 2009 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// File name: nto1_mux.v
//
// Description: N:1 MUX based on either binary-encoded or one-hot select input
// One-hot mode does not protect against multiple active SEL_ONEHOT inputs.
// Note: All port signals changed to all-upper-case (w.r.t. prior version).
//
//-----------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_nto1_mux #
(
parameter integer C_RATIO = 1, // Range: >=1
parameter integer C_SEL_WIDTH = 1, // Range: >=1; recommended: ceil_log2(C_RATIO)
parameter integer C_DATAOUT_WIDTH = 1, // Range: >=1
parameter integer C_ONEHOT = 0 // Values: 0 = binary-encoded (use SEL); 1 = one-hot (use SEL_ONEHOT)
)
(
input wire [C_RATIO-1:0] SEL_ONEHOT, // One-hot generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=1)
input wire [C_SEL_WIDTH-1:0] SEL, // Binary-encoded generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=0)
input wire [C_RATIO*C_DATAOUT_WIDTH-1:0] IN, // Data input array (num_selections x data_width)
output wire [C_DATAOUT_WIDTH-1:0] OUT // Data output vector
);
wire [C_DATAOUT_WIDTH*C_RATIO-1:0] carry;
genvar i;
generate
if (C_ONEHOT == 0) begin : gen_encoded
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{(SEL==0)?1'b1:1'b0}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_enc
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{(SEL==i)?1'b1:1'b0}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end else begin : gen_onehot
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{SEL_ONEHOT[0]}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_hot
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{SEL_ONEHOT[i]}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end
endgenerate
assign OUT = carry[C_DATAOUT_WIDTH*C_RATIO-1:
C_DATAOUT_WIDTH*(C_RATIO-1)];
endmodule
`default_nettype wire
|
// -- (c) Copyright 2009 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// File name: nto1_mux.v
//
// Description: N:1 MUX based on either binary-encoded or one-hot select input
// One-hot mode does not protect against multiple active SEL_ONEHOT inputs.
// Note: All port signals changed to all-upper-case (w.r.t. prior version).
//
//-----------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_nto1_mux #
(
parameter integer C_RATIO = 1, // Range: >=1
parameter integer C_SEL_WIDTH = 1, // Range: >=1; recommended: ceil_log2(C_RATIO)
parameter integer C_DATAOUT_WIDTH = 1, // Range: >=1
parameter integer C_ONEHOT = 0 // Values: 0 = binary-encoded (use SEL); 1 = one-hot (use SEL_ONEHOT)
)
(
input wire [C_RATIO-1:0] SEL_ONEHOT, // One-hot generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=1)
input wire [C_SEL_WIDTH-1:0] SEL, // Binary-encoded generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=0)
input wire [C_RATIO*C_DATAOUT_WIDTH-1:0] IN, // Data input array (num_selections x data_width)
output wire [C_DATAOUT_WIDTH-1:0] OUT // Data output vector
);
wire [C_DATAOUT_WIDTH*C_RATIO-1:0] carry;
genvar i;
generate
if (C_ONEHOT == 0) begin : gen_encoded
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{(SEL==0)?1'b1:1'b0}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_enc
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{(SEL==i)?1'b1:1'b0}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end else begin : gen_onehot
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{SEL_ONEHOT[0]}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_hot
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{SEL_ONEHOT[i]}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end
endgenerate
assign OUT = carry[C_DATAOUT_WIDTH*C_RATIO-1:
C_DATAOUT_WIDTH*(C_RATIO-1)];
endmodule
`default_nettype wire
|
// -- (c) Copyright 2009 - 2011 Xilinx, Inc. All rights reserved.
// --
// -- This file contains confidential and proprietary information
// -- of Xilinx, Inc. and is protected under U.S. and
// -- international copyright and other intellectual property
// -- laws.
// --
// -- DISCLAIMER
// -- This disclaimer is not a license and does not grant any
// -- rights to the materials distributed herewith. Except as
// -- otherwise provided in a valid license issued to you by
// -- Xilinx, and to the maximum extent permitted by applicable
// -- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
// -- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
// -- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
// -- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
// -- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
// -- (2) Xilinx shall not be liable (whether in contract or tort,
// -- including negligence, or under any other theory of
// -- liability) for any loss or damage of any kind or nature
// -- related to, arising under or in connection with these
// -- materials, including for any direct, or any indirect,
// -- special, incidental, or consequential loss or damage
// -- (including loss of data, profits, goodwill, or any type of
// -- loss or damage suffered as a result of any action brought
// -- by a third party) even if such damage or loss was
// -- reasonably foreseeable or Xilinx had been advised of the
// -- possibility of the same.
// --
// -- CRITICAL APPLICATIONS
// -- Xilinx products are not designed or intended to be fail-
// -- safe, or for use in any application requiring fail-safe
// -- performance, such as life-support or safety devices or
// -- systems, Class III medical devices, nuclear facilities,
// -- applications related to the deployment of airbags, or any
// -- other applications that could lead to death, personal
// -- injury, or severe property or environmental damage
// -- (individually and collectively, "Critical
// -- Applications"). Customer assumes the sole risk and
// -- liability of any use of Xilinx products in Critical
// -- Applications, subject only to applicable laws and
// -- regulations governing limitations on product liability.
// --
// -- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
// -- PART OF THIS FILE AT ALL TIMES.
//-----------------------------------------------------------------------------
//
// File name: nto1_mux.v
//
// Description: N:1 MUX based on either binary-encoded or one-hot select input
// One-hot mode does not protect against multiple active SEL_ONEHOT inputs.
// Note: All port signals changed to all-upper-case (w.r.t. prior version).
//
//-----------------------------------------------------------------------------
`timescale 1ps/1ps
`default_nettype none
(* DowngradeIPIdentifiedWarnings="yes" *)
module generic_baseblocks_v2_1_0_nto1_mux #
(
parameter integer C_RATIO = 1, // Range: >=1
parameter integer C_SEL_WIDTH = 1, // Range: >=1; recommended: ceil_log2(C_RATIO)
parameter integer C_DATAOUT_WIDTH = 1, // Range: >=1
parameter integer C_ONEHOT = 0 // Values: 0 = binary-encoded (use SEL); 1 = one-hot (use SEL_ONEHOT)
)
(
input wire [C_RATIO-1:0] SEL_ONEHOT, // One-hot generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=1)
input wire [C_SEL_WIDTH-1:0] SEL, // Binary-encoded generic_baseblocks_v2_1_0_mux select (only used if C_ONEHOT=0)
input wire [C_RATIO*C_DATAOUT_WIDTH-1:0] IN, // Data input array (num_selections x data_width)
output wire [C_DATAOUT_WIDTH-1:0] OUT // Data output vector
);
wire [C_DATAOUT_WIDTH*C_RATIO-1:0] carry;
genvar i;
generate
if (C_ONEHOT == 0) begin : gen_encoded
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{(SEL==0)?1'b1:1'b0}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_enc
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{(SEL==i)?1'b1:1'b0}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end else begin : gen_onehot
assign carry[C_DATAOUT_WIDTH-1:0] = {C_DATAOUT_WIDTH{SEL_ONEHOT[0]}} & IN[C_DATAOUT_WIDTH-1:0];
for (i=1;i<C_RATIO;i=i+1) begin : gen_carrychain_hot
assign carry[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH] =
carry[i*C_DATAOUT_WIDTH-1:(i-1)*C_DATAOUT_WIDTH] |
{C_DATAOUT_WIDTH{SEL_ONEHOT[i]}} & IN[(i+1)*C_DATAOUT_WIDTH-1:i*C_DATAOUT_WIDTH];
end
end
endgenerate
assign OUT = carry[C_DATAOUT_WIDTH*C_RATIO-1:
C_DATAOUT_WIDTH*(C_RATIO-1)];
endmodule
`default_nettype wire
|
/*
Legal Notice: (C)2009 Altera Corporation. All rights reserved. Your
use of Altera Corporation's design tools, logic functions and other
software and tools, and its AMPP partner logic functions, and any
output files any of the foregoing (including device programming or
simulation files), and any associated documentation or information are
expressly subject to the terms and conditions of the Altera Program
License Subscription Agreement or other applicable license agreement,
including, without limitation, that your use is for the sole purpose
of programming logic devices manufactured by Altera and sold by Altera
or its authorized distributors. Please refer to the applicable
agreement for further details.
*/
/*
Author: JCJB
Date: 08/13/2010
Version 1.2
This block is responsible determine the appropriate burst count based on the
master length register as well as the buffer watermark and eop/early termination
conditions.
Within this block is a burst counter which is used to control when the next burst
is started. This down counter is loaded with whatever burst count is presented
to the fabric and counts down when waitrequest is deasserted. When it reaches 1
it can either start another burst or reach 0. When the counter reaches 0 this is
considered the idle state which can occur if there is not enough data buffered to
start another burst.
During write bursts the address and burst count must be held for all the beats.
This block will register the address and burst count to keep these signals
held constant to the fabric. This block will not begin a burst until enough
data has been buffered to start the burst so it will assert the stall signal
to keep the write master from advancing to the next word (just like waitrequest)
and will filter the write signal accordingly.
Revision History:
1.0 Initial version
1.1 Added sw_stop and stopped so that the write master will not be
stopped in the middle of a burst write transaction.
1.2 Added the sink ready and valid signals to this block and qualified the
eop signal with them.
*/
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module write_burst_control (
clk,
reset,
sw_reset,
sw_stop,
length,
eop_enabled,
eop,
ready,
valid,
early_termination,
address_in,
write_in,
max_burst_count,
write_fifo_used,
waitrequest,
short_first_access_enable,
short_last_access_enable,
short_first_and_last_access_enable,
address_out,
write_out,
burst_count,
stall,
reset_taken,
stopped
);
parameter BURST_ENABLE = 1; // set to 0 to hardwire the address and write signals straight out
parameter BURST_COUNT_WIDTH = 3;
parameter WORD_SIZE = 4;
parameter WORD_SIZE_LOG2 = 2;
parameter ADDRESS_WIDTH = 32;
parameter LENGTH_WIDTH = 32;
parameter WRITE_FIFO_USED_WIDTH = 5;
parameter BURST_WRAPPING_SUPPORT = 1; // set 1 for on, set 0 for off. This parameter can't be enabled when the master supports programmable bursting.
localparam BURST_OFFSET_WIDTH = (BURST_COUNT_WIDTH == 1)? 1: (BURST_COUNT_WIDTH-1);
input clk;
input reset;
input sw_reset;
input sw_stop;
input [LENGTH_WIDTH-1:0] length;
input eop_enabled;
input eop;
input ready;
input valid;
input early_termination;
input [ADDRESS_WIDTH-1:0] address_in;
input write_in;
input [BURST_COUNT_WIDTH-1:0] max_burst_count; // will be either a hardcoded input or programmable
input [WRITE_FIFO_USED_WIDTH:0] write_fifo_used; // using the fifo full MSB as well
input waitrequest; // this needs to be the waitrequest from the fabric and not the byte enable generator since partial transfers count as burst beats
input short_first_access_enable;
input short_last_access_enable;
input short_first_and_last_access_enable;
output wire [ADDRESS_WIDTH-1:0] address_out;
output wire write_out;
output wire [BURST_COUNT_WIDTH-1:0] burst_count;
output wire stall; // need to issue a stall if there isn't enough data buffered to start a burst
output wire reset_taken; // if a reset occurs in the middle of a burst larger than 1 then the write master needs to know that the burst hasn't completed yet
output wire stopped; // if a stop occurs in the middle of a burst larger than 1 then the write master needs to know that the burst hasn't completed yet
reg [ADDRESS_WIDTH-1:0] address_d1;
reg [BURST_COUNT_WIDTH-1:0] burst_counter; // interal statemachine register
wire idle_state;
wire decrement_burst_counter;
wire ready_during_idle_state; // when there is enough data buffered to start up the burst counter state machine again
wire ready_for_quick_burst; // when there is enough data bufferred to start another burst immediately
wire burst_begin_from_idle_state;
wire burst_begin_quickly; // start another burst immediately after the previous burst completes
wire burst_begin;
wire burst_of_one_enable; // asserted when partial word accesses are occuring or the last early termination word is being written out
wire [BURST_COUNT_WIDTH-1:0] short_length_burst;
wire [BURST_COUNT_WIDTH-1:0] short_packet_burst;
wire short_length_burst_enable;
wire short_early_termination_burst_enable;
wire short_packet_burst_enable;
wire [3:0] mux_select;
reg [BURST_COUNT_WIDTH-1:0] internal_burst_count;
reg [BURST_COUNT_WIDTH-1:0] internal_burst_count_d1;
reg packet_complete;
wire [BURST_OFFSET_WIDTH-1:0] burst_offset;
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
packet_complete <= 0;
end
else
begin
if ((packet_complete == 1) & (write_fifo_used == 0))
begin
packet_complete <= 0;
end
else if ((eop == 1) & (ready == 1) & (valid == 1))
begin
packet_complete <= 1;
end
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
address_d1 <= 0;
end
else if (burst_begin == 1)
begin
address_d1 <= (burst_begin_quickly == 1)? (address_in + WORD_SIZE) : address_in;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
burst_counter <= 0;
end
else
if ((burst_begin == 1) & (sw_reset == 0) & (sw_stop == 0)) // for reset and stop we need to let the burst complete so the fabric doesn't lock up
begin
burst_counter <= internal_burst_count;
end
else if (decrement_burst_counter == 1)
begin
burst_counter <= burst_counter - 1'b1;
end
end
always @ (posedge clk or posedge reset)
begin
if (reset)
begin
internal_burst_count_d1 <= 0;
end
else if (burst_begin == 1)
begin
internal_burst_count_d1 <= internal_burst_count;
end
end
// state machine status and control
assign idle_state = (burst_counter == 0); // any time idle_state is set then there is no burst underway
assign decrement_burst_counter = (idle_state == 0) & (waitrequest == 0);
// control for all the various cases that a burst of one beat needs to be posted
assign burst_offset = address_in[BURST_OFFSET_WIDTH+WORD_SIZE_LOG2-1:WORD_SIZE_LOG2];
assign burst_of_one_enable = (short_first_access_enable == 1) | (short_last_access_enable == 1) | (short_first_and_last_access_enable == 1) | (early_termination == 1) |
((BURST_WRAPPING_SUPPORT == 1) & (idle_state == 1) & (burst_offset != 0)) | // need to make sure bursts start on burst boundaries
((BURST_WRAPPING_SUPPORT == 1) & (idle_state == 0) & (burst_offset != (max_burst_count - 1))); // need to make sure bursts start on burst boundaries
assign short_length_burst_enable = ((length >> WORD_SIZE_LOG2) < max_burst_count) & (eop_enabled == 0) & (burst_of_one_enable == 0);
assign short_early_termination_burst_enable = ((length >> WORD_SIZE_LOG2) < max_burst_count) & (eop_enabled == 1) & (burst_of_one_enable == 0); // trim back the burst count regardless if there is enough data buffered for a full burst
assign short_packet_burst_enable = (short_early_termination_burst_enable == 0) & (eop_enabled == 1) & (packet_complete == 1) & (write_fifo_used < max_burst_count) & (burst_of_one_enable == 0);
// various burst amounts that are not the max burst count or 1 that feed the internal_burst_count mux. short_length_burst is used when short_length_burst_enable or short_early_termination_burst_enable is asserted.
assign short_length_burst = (length >> WORD_SIZE_LOG2) & {(BURST_COUNT_WIDTH-1){1'b1}};
assign short_packet_burst = (write_fifo_used & {(BURST_COUNT_WIDTH-1){1'b1}});
// since the write master may not have enough data buffered in the FIFO to start a burst the FIFO fill level must be checked before starting another burst
assign ready_during_idle_state = (burst_of_one_enable == 1) | // burst of one is only enabled when there is data in the write fifo so write_fifo_used doesn't need to be checked in this case
((write_fifo_used >= short_length_burst) & (short_length_burst_enable == 1)) |
((write_fifo_used >= short_length_burst) & (short_early_termination_burst_enable == 1)) |
((write_fifo_used >= short_packet_burst) & (short_packet_burst_enable == 1)) |
(write_fifo_used >= max_burst_count);
// same as ready_during_idle_state only we need to make sure there is more data in the fifo than the burst being posted (since the FIFO is in the middle of being popped)
assign ready_for_quick_burst = (length >= (max_burst_count << WORD_SIZE_LOG2)) & (burst_of_one_enable == 0) & // address and length lags by one clock cycle so this will let the state machine catch up
( ((write_fifo_used > short_length_burst) & (short_length_burst_enable == 1)) |
((write_fifo_used > short_length_burst) & (short_early_termination_burst_enable == 1)) |
((write_fifo_used > short_packet_burst) & (short_packet_burst_enable == 1)) |
(write_fifo_used > max_burst_count) );
// burst begin signals used to start up the burst counter state machine
assign burst_begin_from_idle_state = (write_in == 1) & (idle_state == 1) & (ready_during_idle_state == 1); // start the state machine up again
assign burst_begin_quickly = (write_in == 1) & (burst_counter == 1) & (waitrequest == 0) & (ready_for_quick_burst == 1); // enough data is buffered to start another burst immediately after the current burst
assign burst_begin = (burst_begin_quickly == 1) | (burst_begin_from_idle_state == 1);
assign mux_select = {short_packet_burst_enable, short_early_termination_burst_enable, short_length_burst_enable, burst_of_one_enable};
// one-hot mux that selects the appropriate burst count to present to the fabric
always @ (short_length_burst or short_packet_burst or max_burst_count or mux_select)
begin
case (mux_select)
4'b0001 : internal_burst_count = 1;
4'b0010 : internal_burst_count = short_length_burst;
4'b0100 : internal_burst_count = short_length_burst;
4'b1000 : internal_burst_count = short_packet_burst;
default : internal_burst_count = max_burst_count;
endcase
end
generate
if (BURST_ENABLE == 1)
begin
// outputs that need to be held constant throughout the entire burst transaction
assign address_out = address_d1;
assign burst_count = internal_burst_count_d1;
assign write_out = (idle_state == 0);
assign stall = (idle_state == 1);
assign reset_taken = (sw_reset == 1) & (idle_state == 1); // for bursts of 1 the write master logic will handle the correct reset timing
assign stopped = (sw_stop == 1) & (idle_state == 1); // for bursts of 1 the write master logic will handle the correct stop timing
end
else
begin
assign address_out = address_in;
assign burst_count = 1; // this will be stubbed at the top level
assign write_out = write_in;
assign stall = 0;
assign reset_taken = sw_reset;
assign stopped = sw_stop;
end
endgenerate
endmodule
|
module mem_window (
clk,
reset,
// Memory slave port
s1_address,
s1_read,
s1_readdata,
s1_readdatavalid,
s1_write,
s1_writedata,
s1_burstcount,
s1_byteenable,
s1_waitrequest,
// Configuration register slave port
cra_write,
cra_writedata,
cra_byteenable,
// Bridged master port to memory
m1_address,
m1_read,
m1_readdata,
m1_readdatavalid,
m1_write,
m1_writedata,
m1_burstcount,
m1_byteenable,
m1_waitrequest
);
parameter PAGE_ADDRESS_WIDTH = 20;
parameter MEM_ADDRESS_WIDTH = 32;
parameter NUM_BYTES = 32;
parameter BURSTCOUNT_WIDTH = 1;
parameter CRA_BITWIDTH = 32;
localparam ADDRESS_SHIFT = $clog2(NUM_BYTES);
localparam PAGE_ID_WIDTH = MEM_ADDRESS_WIDTH - PAGE_ADDRESS_WIDTH - ADDRESS_SHIFT;
localparam DATA_WIDTH = NUM_BYTES * 8;
input clk;
input reset;
// Memory slave port
input [PAGE_ADDRESS_WIDTH-1:0] s1_address;
input s1_read;
output [DATA_WIDTH-1:0] s1_readdata;
output s1_readdatavalid;
input s1_write;
input [DATA_WIDTH-1:0] s1_writedata;
input [BURSTCOUNT_WIDTH-1:0] s1_burstcount;
input [NUM_BYTES-1:0] s1_byteenable;
output s1_waitrequest;
// Bridged master port to memory
output [MEM_ADDRESS_WIDTH-1:0] m1_address;
output m1_read;
input [DATA_WIDTH-1:0] m1_readdata;
input m1_readdatavalid;
output m1_write;
output [DATA_WIDTH-1:0] m1_writedata;
output [BURSTCOUNT_WIDTH-1:0] m1_burstcount;
output [NUM_BYTES-1:0] m1_byteenable;
input m1_waitrequest;
// CRA slave
input cra_write;
input [CRA_BITWIDTH-1:0] cra_writedata;
input [CRA_BITWIDTH/8-1:0] cra_byteenable;
// Architecture
// CRA slave allows the master to change the active page
reg [PAGE_ID_WIDTH-1:0] page_id;
reg [CRA_BITWIDTH-1:0] cra_writemask;
integer i;
always@*
for (i=0; i<CRA_BITWIDTH; i=i+1)
cra_writemask[i] = cra_byteenable[i/8] & cra_write;
always@(posedge clk or posedge reset)
begin
if(reset == 1'b1)
page_id <= {PAGE_ID_WIDTH{1'b0}};
else
page_id <= (cra_writedata & cra_writemask) | (page_id & ~cra_writemask);
end
// The s1 port bridges to the m1 port - with the page ID tacked on to the address
assign m1_address = {page_id, s1_address, {ADDRESS_SHIFT{1'b0}}};
assign m1_read = s1_read;
assign s1_readdata = m1_readdata;
assign s1_readdatavalid = m1_readdatavalid;
assign m1_write = s1_write;
assign m1_writedata = s1_writedata;
assign m1_burstcount = s1_burstcount;
assign m1_byteenable = s1_byteenable;
assign s1_waitrequest = m1_waitrequest;
endmodule
|
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