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//***************************************************************************** // DISCLAIMER OF LIABILITY // // This file contains proprietary and confidential information of // Xilinx, Inc. ("Xilinx"), that is distributed under a license // from Xilinx, and may be used, copied and/or disclosed only // pursuant to the terms of a valid license agreement with Xilinx. // // XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION // ("MATERIALS") "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER // EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING WITHOUT // LIMITATION, ANY WARRANTY WITH RESPECT TO NONINFRINGEMENT, // MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. Xilinx // does not warrant that functions included in the Materials will // meet the requirements of Licensee, or that the operation of the // Materials will be uninterrupted or error-free, or that defects // in the Materials will be corrected. Furthermore, Xilinx does // not warrant or make any representations regarding use, or the // results of the use, of the Materials in terms of correctness, // accuracy, reliability or otherwise. // // 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. // // Copyright 2006, 2007, 2008 Xilinx, Inc. // All rights reserved. // // This disclaimer and copyright notice must be retained as part // of this file at all times. //***************************************************************************** // ____ ____ // / /\/ / // /___/ \ / Vendor: Xilinx // \ \ \/ Version: 3.0 // \ \ Application: MIG // / / Filename: ddr2_mig.v // /___/ /\ Date Last Modified: $Date: 2009/02/03 18:46:29 $ // \ \ / \ Date Created: Wed Aug 16 2006 // \___\/\___\ // //Device: Virtex-5 //Design Name: DDR2 //Purpose: // Top-level module. Simple model for what the user might use // Typically, the user will only instantiate MEM_INTERFACE_TOP in their // code, and generate all backend logic (test bench) separately. // In addition to the memory controller, the module instantiates: // 1. Clock generation/distribution, reset logic // 2. IDELAY control block //Reference: //Revision History: // Rev 1.1 - Parameter USE_DM_PORT added. PK. 6/25/08 // Rev 1.2 - Parameter HIGH_PERFORMANCE_MODE added. PK. 7/10/08 // Rev 1.3 - Parameter IODELAY_GRP added. PK. 11/27/08 //***************************************************************************** `timescale 1ns/1ps (* X_CORE_INFO = "mig_v3_0_ddr2_v5, Coregen 11.1" , CORE_GENERATION_INFO = "ddr2_v5,mig_v3_0,{component_name=ddr2_mig, BANK_WIDTH=2, CKE_WIDTH=1, CLK_WIDTH=2, COL_WIDTH=10, CS_NUM=1, CS_WIDTH=1, DM_WIDTH=8, DQ_WIDTH=64, DQ_PER_DQS=8, DQS_WIDTH=8, ODT_WIDTH=1, ROW_WIDTH=13, ADDITIVE_LAT=0, BURST_LEN=4, BURST_TYPE=0, CAS_LAT=4, ECC_ENABLE=0, MULTI_BANK_EN=1, TWO_T_TIME_EN=1, ODT_TYPE=1, REDUCE_DRV=0, REG_ENABLE=0, TREFI_NS=7800, TRAS=40000, TRCD=15000, TRFC=105000, TRP=15000, TRTP=7500, TWR=15000, TWTR=7500, DDR2_CLK_PERIOD=3750, RST_ACT_LOW=1}" *) module ddr2_mig # ( parameter BANK_WIDTH = 2, // # of memory bank addr bits. parameter CKE_WIDTH = 1, // # of memory clock enable outputs. parameter CLK_WIDTH = 2, // # of clock outputs. parameter COL_WIDTH = 10, // # of memory column bits. parameter CS_NUM = 1, // # of separate memory chip selects. parameter CS_WIDTH = 1, // # of total memory chip selects. parameter CS_BITS = 0, // set to log2(CS_NUM) (rounded up). parameter DM_WIDTH = 8, // # of data mask bits. parameter DQ_WIDTH = 64, // # of data width. parameter DQ_PER_DQS = 8, // # of DQ data bits per strobe. parameter DQS_WIDTH = 8, // # of DQS strobes. parameter DQ_BITS = 6, // set to log2(DQS_WIDTH*DQ_PER_DQS). parameter DQS_BITS = 3, // set to log2(DQS_WIDTH). parameter ODT_WIDTH = 1, // # of memory on-die term enables. parameter ROW_WIDTH = 13, // # of memory row and # of addr bits. parameter ADDITIVE_LAT = 0, // additive write latency. parameter BURST_LEN = 4, // burst length (in double words). parameter BURST_TYPE = 0, // burst type (=0 seq; =1 interleaved). parameter CAS_LAT = 4, // CAS latency. parameter ECC_ENABLE = 0, // enable ECC (=1 enable). parameter APPDATA_WIDTH = 128, // # of usr read/write data bus bits. parameter MULTI_BANK_EN = 1, // Keeps multiple banks open. (= 1 enable). parameter TWO_T_TIME_EN = 1, // 2t timing for unbuffered dimms. parameter ODT_TYPE = 1, // ODT (=0(none),=1(75),=2(150),=3(50)). parameter REDUCE_DRV = 0, // reduced strength mem I/O (=1 yes). parameter REG_ENABLE = 0, // registered addr/ctrl (=1 yes). parameter TREFI_NS = 7800, // auto refresh interval (ns). parameter TRAS = 40000, // active->precharge delay. parameter TRCD = 15000, // active->read/write delay. parameter TRFC = 105000, // refresh->refresh, refresh->active delay. parameter TRP = 15000, // precharge->command delay. parameter TRTP = 7500, // read->precharge delay. parameter TWR = 15000, // used to determine write->precharge. parameter TWTR = 7500, // write->read delay. parameter HIGH_PERFORMANCE_MODE = "TRUE", // # = TRUE, the IODELAY performance mode is set // to high. // # = FALSE, the IODELAY performance mode is set // to low. parameter SIM_ONLY = 0, // = 1 to skip SDRAM power up delay. parameter DEBUG_EN = 0, // Enable debug signals/controls. // When this parameter is changed from 0 to 1, // make sure to uncomment the coregen commands // in ise_flow.bat or create_ise.bat files in // par folder. parameter CLK_PERIOD = 3750, // Core/Memory clock period (in ps). parameter CLK_TYPE = "SINGLE_ENDED", // # = "DIFFERENTIAL " ->; Differential input clocks , // # = "SINGLE_ENDED" -> Single ended input clocks. parameter DLL_FREQ_MODE = "HIGH", // DCM Frequency range. parameter RST_ACT_LOW = 1 // =1 for active low reset, =0 for active high. ) ( inout [DQ_WIDTH-1:0] ddr2_dq, output [ROW_WIDTH-1:0] ddr2_a, output [BANK_WIDTH-1:0] ddr2_ba, output ddr2_ras_n, output ddr2_cas_n, output ddr2_we_n, output [CS_WIDTH-1:0] ddr2_cs_n, output [ODT_WIDTH-1:0] ddr2_odt, output [CKE_WIDTH-1:0] ddr2_cke, output [DM_WIDTH-1:0] ddr2_dm, input sys_clk, input idly_clk_200, input sys_rst_n, output phy_init_done, output rst0_tb, output clk0_tb, input usr_clk, // jb output app_wdf_afull, output app_af_afull, output rd_data_valid, input app_wdf_wren, input app_af_wren, input [30:0] app_af_addr, input [2:0] app_af_cmd, output [(APPDATA_WIDTH)-1:0] rd_data_fifo_out, input [(APPDATA_WIDTH)-1:0] app_wdf_data, input [(APPDATA_WIDTH/8)-1:0] app_wdf_mask_data, inout [DQS_WIDTH-1:0] ddr2_dqs, inout [DQS_WIDTH-1:0] ddr2_dqs_n, output [CLK_WIDTH-1:0] ddr2_ck, output [CLK_WIDTH-1:0] ddr2_ck_n ); //*************************************************************************** // IODELAY Group Name: Replication and placement of IDELAYCTRLs will be // handled automatically by software tools if IDELAYCTRLs have same refclk, // reset and rdy nets. Designs with a unique RESET will commonly create a // unique RDY. Constraint IODELAY_GROUP is associated to a set of IODELAYs // with an IDELAYCTRL. The parameter IODELAY_GRP value can be any string. //*************************************************************************** localparam IODELAY_GRP = "IODELAY_MIG"; initial $display("Xilinx DDR2 MIGed controller at %m\n"); wire sys_clk_p; wire sys_clk_n; wire clk200_p; wire clk200_n; wire rst0; wire rst90; wire rstdiv0; wire rst200; wire clk0; wire clk90; wire clkdiv0; wire clk200; wire idelay_ctrl_rdy; //Debug signals wire [3:0] dbg_calib_done; wire [3:0] dbg_calib_err; wire [(6*DQ_WIDTH)-1:0] dbg_calib_dq_tap_cnt; wire [(6*DQS_WIDTH)-1:0] dbg_calib_dqs_tap_cnt; wire [(6*DQS_WIDTH)-1:0] dbg_calib_gate_tap_cnt; wire [DQS_WIDTH-1:0] dbg_calib_rd_data_sel; wire [(5*DQS_WIDTH)-1:0] dbg_calib_rden_dly; wire [(5*DQS_WIDTH)-1:0] dbg_calib_gate_dly; wire dbg_idel_up_all; wire dbg_idel_down_all; wire dbg_idel_up_dq; wire dbg_idel_down_dq; wire dbg_idel_up_dqs; wire dbg_idel_down_dqs; wire dbg_idel_up_gate; wire dbg_idel_down_gate; wire [DQ_BITS-1:0] dbg_sel_idel_dq; wire dbg_sel_all_idel_dq; wire [DQS_BITS:0] dbg_sel_idel_dqs; wire dbg_sel_all_idel_dqs; wire [DQS_BITS:0] dbg_sel_idel_gate; wire dbg_sel_all_idel_gate; // Debug signals (optional use) //*********************************** // PHY Debug Port demo //*********************************** wire [35:0] cs_control0; wire [35:0] cs_control1; wire [35:0] cs_control2; wire [35:0] cs_control3; wire [191:0] vio0_in; wire [95:0] vio1_in; wire [99:0] vio2_in; wire [31:0] vio3_out; //*************************************************************************** assign rst0_tb = rst0; assign clk0_tb = clk0; assign sys_clk_p = 1'b1; assign sys_clk_n = 1'b0; assign clk200_p = 1'b1; assign clk200_n = 1'b0; ddr2_idelay_ctrl # ( .IODELAY_GRP (IODELAY_GRP) ) u_ddr2_idelay_ctrl ( .rst200 (rst200), .clk200 (clk200), .idelay_ctrl_rdy (idelay_ctrl_rdy) ); ddr2_infrastructure # ( .CLK_PERIOD (CLK_PERIOD), .CLK_TYPE (CLK_TYPE), .DLL_FREQ_MODE (DLL_FREQ_MODE), .RST_ACT_LOW (RST_ACT_LOW) ) u_ddr2_infrastructure ( .sys_clk_p (sys_clk_p), .sys_clk_n (sys_clk_n), .sys_clk (sys_clk), .clk200_p (clk200_p), .clk200_n (clk200_n), .idly_clk_200 (idly_clk_200), .sys_rst_n (sys_rst_n), .rst0 (rst0), .rst90 (rst90), .rstdiv0 (rstdiv0), .rst200 (rst200), .clk0 (clk0), .clk90 (clk90), .clkdiv0 (clkdiv0), .clk200 (clk200), .idelay_ctrl_rdy (idelay_ctrl_rdy) ); ddr2_top # ( .BANK_WIDTH (BANK_WIDTH), .CKE_WIDTH (CKE_WIDTH), .CLK_WIDTH (CLK_WIDTH), .COL_WIDTH (COL_WIDTH), .CS_NUM (CS_NUM), .CS_WIDTH (CS_WIDTH), .CS_BITS (CS_BITS), .DM_WIDTH (DM_WIDTH), .DQ_WIDTH (DQ_WIDTH), .DQ_PER_DQS (DQ_PER_DQS), .DQS_WIDTH (DQS_WIDTH), .DQ_BITS (DQ_BITS), .DQS_BITS (DQS_BITS), .ODT_WIDTH (ODT_WIDTH), .ROW_WIDTH (ROW_WIDTH), .ADDITIVE_LAT (ADDITIVE_LAT), .BURST_LEN (BURST_LEN), .BURST_TYPE (BURST_TYPE), .CAS_LAT (CAS_LAT), .ECC_ENABLE (ECC_ENABLE), .APPDATA_WIDTH (APPDATA_WIDTH), .MULTI_BANK_EN (MULTI_BANK_EN), .TWO_T_TIME_EN (TWO_T_TIME_EN), .ODT_TYPE (ODT_TYPE), .REDUCE_DRV (REDUCE_DRV), .REG_ENABLE (REG_ENABLE), .TREFI_NS (TREFI_NS), .TRAS (TRAS), .TRCD (TRCD), .TRFC (TRFC), .TRP (TRP), .TRTP (TRTP), .TWR (TWR), .TWTR (TWTR), .HIGH_PERFORMANCE_MODE (HIGH_PERFORMANCE_MODE), .IODELAY_GRP (IODELAY_GRP), .SIM_ONLY (SIM_ONLY), .DEBUG_EN (DEBUG_EN), .CLK_PERIOD (CLK_PERIOD), .FPGA_SPEED_GRADE (1), .USE_DM_PORT (1) ) u_ddr2_top_0 ( .ddr2_dq (ddr2_dq), .ddr2_a (ddr2_a), .ddr2_ba (ddr2_ba), .ddr2_ras_n (ddr2_ras_n), .ddr2_cas_n (ddr2_cas_n), .ddr2_we_n (ddr2_we_n), .ddr2_cs_n (ddr2_cs_n), .ddr2_odt (ddr2_odt), .ddr2_cke (ddr2_cke), .ddr2_dm (ddr2_dm), .phy_init_done (phy_init_done), .rst0 (rst0), .rst90 (rst90), .rstdiv0 (rstdiv0), .clk0 (clk0), .usr_clk (usr_clk), // jb .clk90 (clk90), .clkdiv0 (clkdiv0), .app_wdf_afull (app_wdf_afull), .app_af_afull (app_af_afull), .rd_data_valid (rd_data_valid), .app_wdf_wren (app_wdf_wren), .app_af_wren (app_af_wren), .app_af_addr (app_af_addr), .app_af_cmd (app_af_cmd), .rd_data_fifo_out (rd_data_fifo_out), .app_wdf_data (app_wdf_data), .app_wdf_mask_data (app_wdf_mask_data), .ddr2_dqs (ddr2_dqs), .ddr2_dqs_n (ddr2_dqs_n), .ddr2_ck (ddr2_ck), .rd_ecc_error (), .ddr2_ck_n (ddr2_ck_n), .dbg_calib_done (dbg_calib_done), .dbg_calib_err (dbg_calib_err), .dbg_calib_dq_tap_cnt (dbg_calib_dq_tap_cnt), .dbg_calib_dqs_tap_cnt (dbg_calib_dqs_tap_cnt), .dbg_calib_gate_tap_cnt (dbg_calib_gate_tap_cnt), .dbg_calib_rd_data_sel (dbg_calib_rd_data_sel), .dbg_calib_rden_dly (dbg_calib_rden_dly), .dbg_calib_gate_dly (dbg_calib_gate_dly), .dbg_idel_up_all (dbg_idel_up_all), .dbg_idel_down_all (dbg_idel_down_all), .dbg_idel_up_dq (dbg_idel_up_dq), .dbg_idel_down_dq (dbg_idel_down_dq), .dbg_idel_up_dqs (dbg_idel_up_dqs), .dbg_idel_down_dqs (dbg_idel_down_dqs), .dbg_idel_up_gate (dbg_idel_up_gate), .dbg_idel_down_gate (dbg_idel_down_gate), .dbg_sel_idel_dq (dbg_sel_idel_dq), .dbg_sel_all_idel_dq (dbg_sel_all_idel_dq), .dbg_sel_idel_dqs (dbg_sel_idel_dqs), .dbg_sel_all_idel_dqs (dbg_sel_all_idel_dqs), .dbg_sel_idel_gate (dbg_sel_idel_gate), .dbg_sel_all_idel_gate (dbg_sel_all_idel_gate) ); //***************************************************************** // Hooks to prevent sim/syn compilation errors (mainly for VHDL - but // keep it also in Verilog version of code) w/ floating inputs if // DEBUG_EN = 0. //***************************************************************** generate if (DEBUG_EN == 0) begin: gen_dbg_tie_off assign dbg_idel_up_all = 'b0; assign dbg_idel_down_all = 'b0; assign dbg_idel_up_dq = 'b0; assign dbg_idel_down_dq = 'b0; assign dbg_idel_up_dqs = 'b0; assign dbg_idel_down_dqs = 'b0; assign dbg_idel_up_gate = 'b0; assign dbg_idel_down_gate = 'b0; assign dbg_sel_idel_dq = 'b0; assign dbg_sel_all_idel_dq = 'b0; assign dbg_sel_idel_dqs = 'b0; assign dbg_sel_all_idel_dqs = 'b0; assign dbg_sel_idel_gate = 'b0; assign dbg_sel_all_idel_gate = 'b0; end else begin: gen_dbg_enable `ifdef XILINX_DDR2_CHIPSCOPE //***************************************************************** // PHY Debug Port example - see MIG User's Guide, XAPP858 or // Answer Record 29443 // This logic supports up to 32 DQ and 8 DQS I/O // NOTES: // 1. PHY Debug Port demo connects to 4 VIO modules: // - 3 VIO modules with only asynchronous inputs // * Monitor IDELAY taps for DQ, DQS, DQS Gate // * Calibration status // - 1 VIO module with synchronous outputs // * Allow dynamic adjustment o f IDELAY taps // 2. User may need to modify this code to incorporate other // chipscope-related modules in their larger design (e.g. // if they have other ILA/VIO modules, they will need to // for example instantiate a larger ICON module). In addition // user may want to instantiate more VIO modules to control // IDELAY for more DQ, DQS than is shown here //***************************************************************** icon4 u_icon ( .control0 (cs_control0), .control1 (cs_control1), .control2 (cs_control2), .control3 (cs_control3) ); //***************************************************************** // VIO ASYNC input: Display current IDELAY setting for up to 32 // DQ taps (32x6) = 192 //***************************************************************** vio_async_in192 u_vio0 ( .control (cs_control0), .async_in (vio0_in) ); //***************************************************************** // VIO ASYNC input: Display current IDELAY setting for up to 8 DQS // and DQS Gate taps (8x6x2) = 96 //***************************************************************** vio_async_in96 u_vio1 ( .control (cs_control1), .async_in (vio1_in) ); //***************************************************************** // VIO ASYNC input: Display other calibration results //***************************************************************** vio_async_in100 u_vio2 ( .control (cs_control2), .async_in (vio2_in) ); //***************************************************************** // VIO SYNC output: Dynamically change IDELAY taps //***************************************************************** vio_sync_out32 u_vio3 ( .control (cs_control3), .clk (clkdiv0), .sync_out (vio3_out) ); //***************************************************************** // Bit assignments: // NOTE: Not all VIO, ILA inputs/outputs may be used - these will // be dependent on the user's particular bit width //***************************************************************** if (DQ_WIDTH <= 32) begin: gen_dq_le_32 assign vio0_in[(6*DQ_WIDTH)-1:0] = dbg_calib_dq_tap_cnt[(6*DQ_WIDTH)-1:0]; end else begin: gen_dq_gt_32 assign vio0_in = dbg_calib_dq_tap_cnt[191:0]; end if (DQS_WIDTH <= 8) begin: gen_dqs_le_8 assign vio1_in[(6*DQS_WIDTH)-1:0] = dbg_calib_dqs_tap_cnt[(6*DQS_WIDTH)-1:0]; assign vio1_in[(12*DQS_WIDTH)-1:(6*DQS_WIDTH)] = dbg_calib_gate_tap_cnt[(6*DQS_WIDTH)-1:0]; end else begin: gen_dqs_gt_32 assign vio1_in[47:0] = dbg_calib_dqs_tap_cnt[47:0]; assign vio1_in[95:48] = dbg_calib_gate_tap_cnt[47:0]; end //dbg_calib_rd_data_sel if (DQS_WIDTH <= 8) begin: gen_rdsel_le_8 assign vio2_in[(DQS_WIDTH)+7:8] = dbg_calib_rd_data_sel[(DQS_WIDTH)-1:0]; end else begin: gen_rdsel_gt_32 assign vio2_in[15:8] = dbg_calib_rd_data_sel[7:0]; end //dbg_calib_rden_dly if (DQS_WIDTH <= 8) begin: gen_calrd_le_8 assign vio2_in[(5*DQS_WIDTH)+19:20] = dbg_calib_rden_dly[(5*DQS_WIDTH)-1:0]; end else begin: gen_calrd_gt_32 assign vio2_in[59:20] = dbg_calib_rden_dly[39:0]; end //dbg_calib_gate_dly if (DQS_WIDTH <= 8) begin: gen_calgt_le_8 assign vio2_in[(5*DQS_WIDTH)+59:60] = dbg_calib_gate_dly[(5*DQS_WIDTH)-1:0]; end else begin: gen_calgt_gt_32 assign vio2_in[99:60] = dbg_calib_gate_dly[39:0]; end //dbg_sel_idel_dq if (DQ_BITS <= 5) begin: gen_selid_le_5 assign dbg_sel_idel_dq[DQ_BITS-1:0] = vio3_out[DQ_BITS+7:8]; end else begin: gen_selid_gt_32 assign dbg_sel_idel_dq[4:0] = vio3_out[12:8]; end //dbg_sel_idel_dqs if (DQS_BITS <= 3) begin: gen_seldqs_le_3 assign dbg_sel_idel_dqs[DQS_BITS:0] = vio3_out[(DQS_BITS+16):16]; end else begin: gen_seldqs_gt_32 assign dbg_sel_idel_dqs[3:0] = vio3_out[19:16]; end //dbg_sel_idel_gate if (DQS_BITS <= 3) begin: gen_gtdqs_le_3 assign dbg_sel_idel_gate[DQS_BITS:0] = vio3_out[(DQS_BITS+21):21]; end else begin: gen_gtdqs_gt_32 assign dbg_sel_idel_gate[3:0] = vio3_out[24:21]; end `endif // `ifdef XILINX_DDR2_CHIPSCOPE assign vio2_in[3:0] = dbg_calib_done; assign vio2_in[7:4] = dbg_calib_err; assign dbg_idel_up_all = vio3_out[0]; assign dbg_idel_down_all = vio3_out[1]; assign dbg_idel_up_dq = vio3_out[2]; assign dbg_idel_down_dq = vio3_out[3]; assign dbg_idel_up_dqs = vio3_out[4]; assign dbg_idel_down_dqs = vio3_out[5]; assign dbg_idel_up_gate = vio3_out[6]; assign dbg_idel_down_gate = vio3_out[7]; assign dbg_sel_all_idel_dq = vio3_out[15]; assign dbg_sel_all_idel_dqs = vio3_out[20]; assign dbg_sel_all_idel_gate = vio3_out[25]; end endgenerate endmodule