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litedram/examples/sim/micron/ddr3_module.v

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examples/sim: add ddr3 micron model
2018-11-17 03:20:34 -05:00
/****************************************************************************************
*
* File Name: ddr3_module.v
*
* Description: Micron SDRAM DDR3 (Double Data Rate 3) module model
*
* Limitation: - SPD (Serial Presence-Detect) is not modeled
* - Command/Address parity is not modeled
*
* Disclaimer This software code and all associated documentation, comments or other
* of Warranty: information (collectively "Software") is provided "AS IS" without
* warranty of any kind. MICRON TECHNOLOGY, INC. ("MTI") EXPRESSLY
* DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO, NONINFRINGEMENT OF THIRD PARTY RIGHTS, AND ANY IMPLIED WARRANTIES
* OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. MTI DOES NOT
* WARRANT THAT THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR THAT THE
* OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE.
* FURTHERMORE, MTI DOES NOT MAKE ANY REPRESENTATIONS REGARDING THE USE OR
* THE RESULTS OF THE USE OF THE SOFTWARE IN TERMS OF ITS CORRECTNESS,
* ACCURACY, RELIABILITY, OR OTHERWISE. THE ENTIRE RISK ARISING OUT OF USE
* OR PERFORMANCE OF THE SOFTWARE REMAINS WITH YOU. IN NO EVENT SHALL MTI,
* ITS AFFILIATED COMPANIES OR THEIR SUPPLIERS BE LIABLE FOR ANY DIRECT,
* INDIRECT, CONSEQUENTIAL, INCIDENTAL, OR SPECIAL DAMAGES (INCLUDING,
* WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION,
* OR LOSS OF INFORMATION) ARISING OUT OF YOUR USE OF OR INABILITY TO USE
* THE SOFTWARE, EVEN IF MTI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGES. Because some jurisdictions prohibit the exclusion or
* limitation of liability for consequential or incidental damages, the
* above limitation may not apply to you.
*
* Copyright 2003 Micron Technology, Inc. All rights reserved.
*
****************************************************************************************/
`timescale 1ps / 1ps
module ddr3_module (
reset_n,
ck ,
ck_n ,
cke ,
s_n ,
ras_n ,
cas_n ,
we_n ,
ba ,
addr ,
odt ,
dqs ,
dqs_n ,
dq ,
`ifdef SODIMM
`else
cb ,
`endif
scl ,
sa ,
sda
);
`ifdef den1024Mb
`include "1024Mb_ddr3_parameters.vh"
`elsif den2048Mb
`include "2048Mb_ddr3_parameters.vh"
`elsif den4096Mb
`include "4096Mb_ddr3_parameters.vh"
`elsif den8192Mb
`include "8192Mb_ddr3_parameters.vh"
`endif
input reset_n;
input [1:0] cke ;
input ras_n ;
input cas_n ;
input we_n ;
input [2:0] ba ;
input [15:0] addr ;
input [1:0] odt ;
inout [17:0] dqs ;
inout [17:0] dqs_n ;
inout [63:0] dq ;
input scl ; // no connect
inout sda ; // no connect
`ifdef QUAD_RANK
initial if (DEBUG) $display("%m: Quad Rank");
`elsif DUAL_RANK
initial if (DEBUG) $display("%m: Dual Rank");
`else
initial if (DEBUG) $display("%m: Single Rank");
`endif
`ifdef ECC
initial if (DEBUG) $display("%m: ECC");
`ifdef SODIMM
initial begin
$display("%m ERROR: ECC is not available on SODIMM configurations");
if (STOP_ON_ERROR) $stop(0);
end
`endif
`else
initial if (DEBUG) $display("%m: non ECC");
`endif
`ifdef RDIMM
initial if (DEBUG) $display("%m: RDIMM");
input ck ;
input ck_n ;
input [3:0] s_n ;
inout [7:0] cb ;
input [2:0] sa ; // no connect
wire [1:0] rck = {2{ck}};
wire [1:0] rck_n = {2{ck_n}};
reg [3:0] rs_n ;
reg rras_n ;
reg rcas_n ;
reg rwe_n ;
reg [2:0] rba ;
reg [15:0] raddr ;
reg [3:0] rcke ;
reg [3:0] rodt ;
always @(negedge reset_n or posedge ck) begin
if (!reset_n) begin
rs_n <= #(500) 0;
rras_n <= #(500) 0;
rcas_n <= #(500) 0;
rwe_n <= #(500) 0;
rba <= #(500) 0;
raddr <= #(500) 0;
rcke <= #(500) 0;
rodt <= #(500) 0;
end else begin
rs_n <= #(500) s_n ;
rras_n <= #(500) ras_n;
rcas_n <= #(500) cas_n;
rwe_n <= #(500) we_n ;
rba <= #(500) ba ;
raddr <= #(500) addr ;
`ifdef QUAD_RANK
rcke <= #(500) {{2{cke[1]}}, {2{cke[0]}}};
rodt <= #(500) {{2{odt[1]}}, {2{odt[0]}}};
`else
rcke <= #(500) {2'b00, cke};
rodt <= #(500) {2'b00, odt};
`endif
end
end
`else
input [1:0] ck ;
input [1:0] ck_n ;
input [1:0] s_n ;
`ifdef SODIMM
initial if (DEBUG) $display("%m: SODIMM");
input [1:0] sa ; // no connect
wire [7:0] cb;
`else
initial if (DEBUG) $display("%m: UDIMM");
inout [7:0] cb ;
input [2:0] sa ; // no connect
`endif
wire [1:0] rck = ck ;
wire [1:0] rck_n = ck_n ;
wire [2:0] rba = ba ;
wire [15:0] raddr = addr ;
wire rras_n = ras_n;
wire rcas_n = cas_n;
wire rwe_n = we_n ;
`ifdef QUAD_RANK
wire [3:0] rs_n = {{2{s_n[1]}}, {2{s_n[0]}}};
wire [3:0] rcke = {{2{cke[1]}}, {2{cke[0]}}};
wire [3:0] rodt = {{2{odt[1]}}, {2{odt[0]}}};
`else
wire [3:0] rs_n = {2'b00, s_n};
wire [3:0] rcke = {2'b00, cke};
wire [3:0] rodt = {2'b00, odt};
`endif
`endif
wire [15:0] rcb = {8'b0, cb};
wire zero = 1'b0;
wire one = 1'b1;
// all DUAL_RANK UDIMMs have mirrored address
`ifdef QUAD_RANK
wire [15:0] maddr = raddr;
wire [2:0] mba = rba;
`elsif DUAL_RANK
`ifdef UDIMM
initial if (DEBUG) $display("%m: ADDRESS MIRROR");
wire [15:0] maddr = {raddr[15:9], raddr[7], raddr[8], raddr[5], raddr[6], raddr[3], raddr[4], raddr[2:0]};
wire [2:0] mba = {rba[2], rba[0], rba[1]};
`else
wire [15:0] maddr = raddr;
wire [2:0] mba = rba;
`endif
`else
wire [15:0] maddr = raddr;
wire [2:0] mba = rba;
`endif
//ddr3 (rst_n , ck , ck_n , cke , cs_n , ras_n , cas_n , we_n , dm_tdqs , ba , addr , dq , dqs , dqs_n , tdqs_n , odt );
`ifdef x4
initial if (DEBUG) $display("%m: Component Width = x4");
ddr3 U1R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 3: 0], dqs[ 0] , dqs_n[ 0] , , rodt[0]);
ddr3 U2R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [11: 8], dqs[ 1] , dqs_n[ 1] , , rodt[0]);
ddr3 U3R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [19:16], dqs[ 2] , dqs_n[ 2] , , rodt[0]);
ddr3 U4R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [27:24], dqs[ 3] , dqs_n[ 3] , , rodt[0]);
ddr3 U6R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [35:32], dqs[ 4] , dqs_n[ 4] , , rodt[0]);
ddr3 U7R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [43:40], dqs[ 5] , dqs_n[ 5] , , rodt[0]);
ddr3 U8R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [51:48], dqs[ 6] , dqs_n[ 6] , , rodt[0]);
ddr3 U9R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [59:56], dqs[ 7] , dqs_n[ 7] , , rodt[0]);
`ifdef ECC
ddr3 U5R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 3: 0], dqs[ 8] , dqs_n[ 8] , , rodt[0]);
`endif
ddr3 U18R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 7: 4], dqs[ 9] , dqs_n[ 9] , , rodt[0]);
ddr3 U17R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [15:12], dqs[ 10] , dqs_n[ 10] , , rodt[0]);
ddr3 U16R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [23:20], dqs[ 11] , dqs_n[ 11] , , rodt[0]);
ddr3 U15R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [31:28], dqs[ 12] , dqs_n[ 12] , , rodt[0]);
ddr3 U13R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [39:36], dqs[ 13] , dqs_n[ 13] , , rodt[0]);
ddr3 U12R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [47:44], dqs[ 14] , dqs_n[ 14] , , rodt[0]);
ddr3 U11R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [55:52], dqs[ 15] , dqs_n[ 15] , , rodt[0]);
ddr3 U10R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [63:60], dqs[ 16] , dqs_n[ 16] , , rodt[0]);
`ifdef ECC
ddr3 U14R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 4], dqs[ 17] , dqs_n[ 17] , , rodt[0]);
`endif
`ifdef DUAL_RANK
ddr3 U1R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [ 3: 0], dqs[ 0] , dqs_n[ 0] , , rodt[1]);
ddr3 U2R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [11: 8], dqs[ 1] , dqs_n[ 1] , , rodt[1]);
ddr3 U3R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [19:16], dqs[ 2] , dqs_n[ 2] , , rodt[1]);
ddr3 U4R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [27:24], dqs[ 3] , dqs_n[ 3] , , rodt[1]);
ddr3 U6R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [35:32], dqs[ 4] , dqs_n[ 4] , , rodt[1]);
ddr3 U7R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [43:40], dqs[ 5] , dqs_n[ 5] , , rodt[1]);
ddr3 U8R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [51:48], dqs[ 6] , dqs_n[ 6] , , rodt[1]);
ddr3 U9R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [59:56], dqs[ 7] , dqs_n[ 7] , , rodt[1]);
`ifdef ECC
ddr3 U5R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], rcb[ 3: 0], dqs[ 8] , dqs_n[ 8] , , rodt[1]);
`endif
ddr3 U18R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [ 7: 4], dqs[ 9] , dqs_n[ 9] , , rodt[1]);
ddr3 U17R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [15:12], dqs[ 10] , dqs_n[ 10] , , rodt[1]);
ddr3 U16R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [23:20], dqs[ 11] , dqs_n[ 11] , , rodt[1]);
ddr3 U15R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [31:28], dqs[ 12] , dqs_n[ 12] , , rodt[1]);
ddr3 U13R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [39:36], dqs[ 13] , dqs_n[ 13] , , rodt[1]);
ddr3 U12R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [47:44], dqs[ 14] , dqs_n[ 14] , , rodt[1]);
ddr3 U11R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [55:52], dqs[ 15] , dqs_n[ 15] , , rodt[1]);
ddr3 U10R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], dq [63:60], dqs[ 16] , dqs_n[ 16] , , rodt[1]);
`ifdef ECC
ddr3 U14R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, zero , mba, maddr[ADDR_BITS-1:0], rcb[ 7: 4], dqs[ 17] , dqs_n[ 17] , , rodt[1]);
`endif
`endif
`ifdef QUAD_RANK
ddr3 U1R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 3: 0], dqs[ 0] , dqs_n[ 0] , , rodt[2]);
ddr3 U2R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [11: 8], dqs[ 1] , dqs_n[ 1] , , rodt[2]);
ddr3 U3R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [19:16], dqs[ 2] , dqs_n[ 2] , , rodt[2]);
ddr3 U4R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [27:24], dqs[ 3] , dqs_n[ 3] , , rodt[2]);
ddr3 U6R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [35:32], dqs[ 4] , dqs_n[ 4] , , rodt[2]);
ddr3 U7R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [43:40], dqs[ 5] , dqs_n[ 5] , , rodt[2]);
ddr3 U8R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [51:48], dqs[ 6] , dqs_n[ 6] , , rodt[2]);
ddr3 U9R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [59:56], dqs[ 7] , dqs_n[ 7] , , rodt[2]);
`ifdef ECC
ddr3 U5R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 3: 0], dqs[ 8] , dqs_n[ 8] , , rodt[2]);
`endif
ddr3 U18R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 7: 4], dqs[ 9] , dqs_n[ 9] , , rodt[2]);
ddr3 U17R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [15:12], dqs[ 10] , dqs_n[ 10] , , rodt[2]);
ddr3 U16R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [23:20], dqs[ 11] , dqs_n[ 11] , , rodt[2]);
ddr3 U15R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [31:28], dqs[ 12] , dqs_n[ 12] , , rodt[2]);
ddr3 U13R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [39:36], dqs[ 13] , dqs_n[ 13] , , rodt[2]);
ddr3 U12R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [47:44], dqs[ 14] , dqs_n[ 14] , , rodt[2]);
ddr3 U11R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [55:52], dqs[ 15] , dqs_n[ 15] , , rodt[2]);
ddr3 U10R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [63:60], dqs[ 16] , dqs_n[ 16] , , rodt[2]);
`ifdef ECC
ddr3 U14R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 4], dqs[ 17] , dqs_n[ 17] , , rodt[2]);
`endif
ddr3 U1R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 3: 0], dqs[ 0] , dqs_n[ 0] , , rodt[3]);
ddr3 U2R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [11: 8], dqs[ 1] , dqs_n[ 1] , , rodt[3]);
ddr3 U3R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [19:16], dqs[ 2] , dqs_n[ 2] , , rodt[3]);
ddr3 U4R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [27:24], dqs[ 3] , dqs_n[ 3] , , rodt[3]);
ddr3 U6R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [35:32], dqs[ 4] , dqs_n[ 4] , , rodt[3]);
ddr3 U7R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [43:40], dqs[ 5] , dqs_n[ 5] , , rodt[3]);
ddr3 U8R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [51:48], dqs[ 6] , dqs_n[ 6] , , rodt[3]);
ddr3 U9R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [59:56], dqs[ 7] , dqs_n[ 7] , , rodt[3]);
`ifdef ECC
ddr3 U5R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 3: 0], dqs[ 8] , dqs_n[ 8] , , rodt[3]);
`endif
ddr3 U18R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [ 7: 4], dqs[ 9] , dqs_n[ 9] , , rodt[3]);
ddr3 U17R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [15:12], dqs[ 10] , dqs_n[ 10] , , rodt[3]);
ddr3 U16R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [23:20], dqs[ 11] , dqs_n[ 11] , , rodt[3]);
ddr3 U15R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [31:28], dqs[ 12] , dqs_n[ 12] , , rodt[3]);
ddr3 U13R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [39:36], dqs[ 13] , dqs_n[ 13] , , rodt[3]);
ddr3 U12R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [47:44], dqs[ 14] , dqs_n[ 14] , , rodt[3]);
ddr3 U11R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [55:52], dqs[ 15] , dqs_n[ 15] , , rodt[3]);
ddr3 U10R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], dq [63:60], dqs[ 16] , dqs_n[ 16] , , rodt[3]);
`ifdef ECC
ddr3 U14R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, zero , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 4], dqs[ 17] , dqs_n[ 17] , , rodt[3]);
`endif
`endif
`elsif x8
initial if (DEBUG) $display("%m: Component Width = x8");
ddr3 U1R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[ 9] , rba, raddr[ADDR_BITS-1:0], dq [ 7: 0], dqs[ 0] , dqs_n[ 0] , dqs_n[ 9], rodt[0]);
ddr3 U2R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[10] , rba, raddr[ADDR_BITS-1:0], dq [15: 8], dqs[ 1] , dqs_n[ 1] , dqs_n[10], rodt[0]);
ddr3 U3R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[11] , rba, raddr[ADDR_BITS-1:0], dq [23:16], dqs[ 2] , dqs_n[ 2] , dqs_n[11], rodt[0]);
ddr3 U4R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[12] , rba, raddr[ADDR_BITS-1:0], dq [31:24], dqs[ 3] , dqs_n[ 3] , dqs_n[12], rodt[0]);
ddr3 U6R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[13] , rba, raddr[ADDR_BITS-1:0], dq [39:32], dqs[ 4] , dqs_n[ 4] , dqs_n[13], rodt[0]);
ddr3 U7R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[14] , rba, raddr[ADDR_BITS-1:0], dq [47:40], dqs[ 5] , dqs_n[ 5] , dqs_n[14], rodt[0]);
ddr3 U8R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[15] , rba, raddr[ADDR_BITS-1:0], dq [55:48], dqs[ 6] , dqs_n[ 6] , dqs_n[15], rodt[0]);
ddr3 U9R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[16] , rba, raddr[ADDR_BITS-1:0], dq [63:56], dqs[ 7] , dqs_n[ 7] , dqs_n[16], rodt[0]);
`ifdef ECC
ddr3 U5R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[17] , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 0], dqs[ 8] , dqs_n[ 8] , dqs_n[17], rodt[0]);
`endif
`ifdef DUAL_RANK
ddr3 U1R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[ 9] , mba, maddr[ADDR_BITS-1:0], dq [ 7: 0], dqs[ 0] , dqs_n[ 0] , dqs_n[ 9], rodt[1]);
ddr3 U2R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[10] , mba, maddr[ADDR_BITS-1:0], dq [15: 8], dqs[ 1] , dqs_n[ 1] , dqs_n[10], rodt[1]);
ddr3 U3R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[11] , mba, maddr[ADDR_BITS-1:0], dq [23:16], dqs[ 2] , dqs_n[ 2] , dqs_n[11], rodt[1]);
ddr3 U4R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[12] , mba, maddr[ADDR_BITS-1:0], dq [31:24], dqs[ 3] , dqs_n[ 3] , dqs_n[12], rodt[1]);
ddr3 U6R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[13] , mba, maddr[ADDR_BITS-1:0], dq [39:32], dqs[ 4] , dqs_n[ 4] , dqs_n[13], rodt[1]);
ddr3 U7R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[14] , mba, maddr[ADDR_BITS-1:0], dq [47:40], dqs[ 5] , dqs_n[ 5] , dqs_n[14], rodt[1]);
ddr3 U8R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[15] , mba, maddr[ADDR_BITS-1:0], dq [55:48], dqs[ 6] , dqs_n[ 6] , dqs_n[15], rodt[1]);
ddr3 U9R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[16] , mba, maddr[ADDR_BITS-1:0], dq [63:56], dqs[ 7] , dqs_n[ 7] , dqs_n[16], rodt[1]);
`ifdef ECC
ddr3 U5R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[17] , mba, maddr[ADDR_BITS-1:0], rcb[ 7: 0], dqs[ 8] , dqs_n[ 8] , dqs_n[17], rodt[1]);
`endif
`endif
`ifdef QUAD_RANK
ddr3 U1R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[ 9] , rba, raddr[ADDR_BITS-1:0], dq [ 7: 0], dqs[ 0] , dqs_n[ 0] , dqs_n[ 9], rodt[2]);
ddr3 U2R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[10] , rba, raddr[ADDR_BITS-1:0], dq [15: 8], dqs[ 1] , dqs_n[ 1] , dqs_n[10], rodt[2]);
ddr3 U3R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[11] , rba, raddr[ADDR_BITS-1:0], dq [23:16], dqs[ 2] , dqs_n[ 2] , dqs_n[11], rodt[2]);
ddr3 U4R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[12] , rba, raddr[ADDR_BITS-1:0], dq [31:24], dqs[ 3] , dqs_n[ 3] , dqs_n[12], rodt[2]);
ddr3 U6R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[13] , rba, raddr[ADDR_BITS-1:0], dq [39:32], dqs[ 4] , dqs_n[ 4] , dqs_n[13], rodt[2]);
ddr3 U7R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[14] , rba, raddr[ADDR_BITS-1:0], dq [47:40], dqs[ 5] , dqs_n[ 5] , dqs_n[14], rodt[2]);
ddr3 U8R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[15] , rba, raddr[ADDR_BITS-1:0], dq [55:48], dqs[ 6] , dqs_n[ 6] , dqs_n[15], rodt[2]);
ddr3 U9R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[16] , rba, raddr[ADDR_BITS-1:0], dq [63:56], dqs[ 7] , dqs_n[ 7] , dqs_n[16], rodt[2]);
`ifdef ECC
ddr3 U5R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[17] , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 0], dqs[ 8] , dqs_n[ 8] , dqs_n[17], rodt[2]);
`endif
ddr3 U1R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[ 9] , rba, raddr[ADDR_BITS-1:0], dq [ 7: 0], dqs[ 0] , dqs_n[ 0] , dqs_n[ 9], rodt[3]);
ddr3 U2R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[10] , rba, raddr[ADDR_BITS-1:0], dq [15: 8], dqs[ 1] , dqs_n[ 1] , dqs_n[10], rodt[3]);
ddr3 U3R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[11] , rba, raddr[ADDR_BITS-1:0], dq [23:16], dqs[ 2] , dqs_n[ 2] , dqs_n[11], rodt[3]);
ddr3 U4R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[12] , rba, raddr[ADDR_BITS-1:0], dq [31:24], dqs[ 3] , dqs_n[ 3] , dqs_n[12], rodt[3]);
ddr3 U6R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[13] , rba, raddr[ADDR_BITS-1:0], dq [39:32], dqs[ 4] , dqs_n[ 4] , dqs_n[13], rodt[3]);
ddr3 U7R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[14] , rba, raddr[ADDR_BITS-1:0], dq [47:40], dqs[ 5] , dqs_n[ 5] , dqs_n[14], rodt[3]);
ddr3 U8R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[15] , rba, raddr[ADDR_BITS-1:0], dq [55:48], dqs[ 6] , dqs_n[ 6] , dqs_n[15], rodt[3]);
ddr3 U9R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[16] , rba, raddr[ADDR_BITS-1:0], dq [63:56], dqs[ 7] , dqs_n[ 7] , dqs_n[16], rodt[3]);
`ifdef ECC
ddr3 U5R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[17] , rba, raddr[ADDR_BITS-1:0], rcb[ 7: 0], dqs[ 8] , dqs_n[ 8] , dqs_n[17], rodt[3]);
`endif
`endif
`elsif x16
initial if (DEBUG) $display("%m: Component Width = x16");
ddr3 U1R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[10: 9] , rba, raddr[ADDR_BITS-1:0], dq [15: 0], dqs[1:0] , dqs_n[1:0] , , rodt[0]);
ddr3 U2R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[12:11] , rba, raddr[ADDR_BITS-1:0], dq [31:16], dqs[3:2] , dqs_n[3:2] , , rodt[0]);
ddr3 U4R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[14:13] , rba, raddr[ADDR_BITS-1:0], dq [47:32], dqs[5:4] , dqs_n[5:4] , , rodt[0]);
ddr3 U5R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, dqs[16:15] , rba, raddr[ADDR_BITS-1:0], dq [63:48], dqs[7:6] , dqs_n[7:6] , , rodt[0]);
`ifdef ECC
ddr3 U3R0 (reset_n, rck[0], rck_n[0], rcke[0], rs_n[0], rras_n, rcas_n, rwe_n, {one, dqs[17]}, rba, raddr[ADDR_BITS-1:0], rcb[15: 0], {zero, dqs[8]}, {one, dqs_n[8]}, , rodt[0]);
`endif
`ifdef DUAL_RANK
ddr3 U1R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[10: 9] , mba, maddr[ADDR_BITS-1:0], dq [15: 0], dqs[1:0] , dqs_n[1:0] , , rodt[1]);
ddr3 U2R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[12:11] , mba, maddr[ADDR_BITS-1:0], dq [31:16], dqs[3:2] , dqs_n[3:2] , , rodt[1]);
ddr3 U4R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[14:13] , mba, maddr[ADDR_BITS-1:0], dq [47:32], dqs[5:4] , dqs_n[5:4] , , rodt[1]);
ddr3 U5R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, dqs[16:15] , mba, maddr[ADDR_BITS-1:0], dq [63:48], dqs[7:6] , dqs_n[7:6] , , rodt[1]);
`ifdef ECC
ddr3 U3R1 (reset_n, rck[1], rck_n[1], rcke[1], rs_n[1], rras_n, rcas_n, rwe_n, {one, dqs[17]}, mba, maddr[ADDR_BITS-1:0], rcb[15: 0], {zero, dqs[8]}, {one, dqs_n[8]}, , rodt[1]);
`endif
`endif
`ifdef QUAD_RANK
ddr3 U1R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[10: 9] , rba, raddr[ADDR_BITS-1:0], dq [15: 0], dqs[1:0] , dqs_n[1:0] , , rodt[2]);
ddr3 U2R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[12:11] , rba, raddr[ADDR_BITS-1:0], dq [31:16], dqs[3:2] , dqs_n[3:2] , , rodt[2]);
ddr3 U4R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[14:13] , rba, raddr[ADDR_BITS-1:0], dq [47:32], dqs[5:4] , dqs_n[5:4] , , rodt[2]);
ddr3 U5R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, dqs[16:15] , rba, raddr[ADDR_BITS-1:0], dq [63:48], dqs[7:6] , dqs_n[7:6] , , rodt[2]);
`ifdef ECC
ddr3 U3R2 (reset_n, rck[0], rck_n[0], rcke[2], rs_n[2], rras_n, rcas_n, rwe_n, {one, dqs[17]}, rba, raddr[ADDR_BITS-1:0], rcb[15: 0], {zero, dqs[8]}, {one, dqs_n[8]}, , rodt[2]);
`endif
ddr3 U1R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[10: 9] , rba, raddr[ADDR_BITS-1:0], dq [15: 0], dqs[1:0] , dqs_n[1:0] , , rodt[3]);
ddr3 U2R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[12:11] , rba, raddr[ADDR_BITS-1:0], dq [31:16], dqs[3:2] , dqs_n[3:2] , , rodt[3]);
ddr3 U4R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[14:13] , rba, raddr[ADDR_BITS-1:0], dq [47:32], dqs[5:4] , dqs_n[5:4] , , rodt[3]);
ddr3 U5R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, dqs[16:15] , rba, raddr[ADDR_BITS-1:0], dq [63:48], dqs[7:6] , dqs_n[7:6] , , rodt[3]);
`ifdef ECC
ddr3 U3R3 (reset_n, rck[1], rck_n[1], rcke[3], rs_n[3], rras_n, rcas_n, rwe_n, {one, dqs[17]}, rba, raddr[ADDR_BITS-1:0], rcb[15: 0], {zero, dqs[8]}, {one, dqs_n[8]}, , rodt[3]);
`endif
`endif
`endif
// calculate the absolute value of a real number
function real abs_value;
input arg;
real arg;
begin
if (arg < 0.0)
abs_value = -1.0 * arg;
else
abs_value = arg;
end
endfunction
function integer ceil;
input number;
real number;
// LMR 4.1.7
// When either operand of a relational expression is a real operand then the other operand shall be converted
// to an equivalent real value, and the expression shall be interpreted as a comparison between two real values.
if (number > $rtoi(number))
ceil = $rtoi(number) + 1;
else
ceil = number;
endfunction
function integer floor;
input number;
real number;
// LMR 4.1.7
// When either operand of a relational expression is a real operand then the other operand shall be converted
// to an equivalent real value, and the expression shall be interpreted as a comparison between two real values.
if (number < $rtoi(number))
floor = $rtoi(number) - 1;
else
floor = number;
endfunction
function int max( input int a, b );
max = (a < b) ? b : a;
endfunction
function int min( input int a, b );
min = (a > b) ? b : a;
endfunction
endmodule