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[/] [openrisc/] [trunk/] [orpsocv2/] [boards/] [xilinx/] [s3adsp1800/] [rtl/] [verilog/] [xilinx_s3adsp_ddr2/] [s3adsp_ddr2_infrastructure_iobs_0.v] - Rev 866
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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 2005, 2006, 2007 Xilinx, Inc. // All rights reserved. // // This disclaimer and copyright notice must be retained as part // of this file at all times. //***************************************************************************** // ____ ____ // / /\/ / // /___/ \ / Vendor : Xilinx // \ \ \/ Version : 3.6.1 // \ \ Application : MIG // / / Filename : s3adsp_ddr2_infrastructure_iobs_0.v // /___/ /\ Date Last Modified : $Date: 2010/11/26 18:25:41 $ // \ \ / \ Date Created : Mon May 2 2005 // \___\/\___\ // Device : Spartan-3/3A/3A-DSP // Design Name : DDR2 SDRAM // Purpose : This module has the FDDRRSE instantiations to the clocks. //***************************************************************************** `include "s3adsp_ddr2_parameters_0.v" `timescale 1ns/100ps module s3adsp_ddr2_infrastructure_iobs_0 ( input clk0, output [(`CLK_WIDTH-1):0] ddr2_ck, output [(`CLK_WIDTH-1):0] ddr2_ck_n ); wire vcc; wire gnd; wire [`CLK_WIDTH-1 :0] ddr2_clk_q; assign gnd = 1'b0; assign vcc = 1'b1; //---- *********************************************************** //---- Output DDR generation //---- This includes instantiation of the output DDR flip flop //---- for ddr clk's and dimm clk's //---- *********************************************************** genvar clk_i; generate for(clk_i = 0; clk_i < `CLK_WIDTH; clk_i = clk_i+1) begin: gen_clk FDDRRSE clk_inst ( .Q (ddr2_clk_q[clk_i]), .C0 (clk0), .C1 (~clk0), .CE (vcc), .D0 (vcc), .D1 (gnd), .R (gnd), .S (gnd) ); end endgenerate //---- ****************************************** //---- Ouput BUffers for ddr clk's and dimm clk's //---- ****************************************** genvar obuf_i; generate for(obuf_i = 0; obuf_i < `CLK_WIDTH; obuf_i = obuf_i+1) begin: gen_obuf OBUFDS OBUFDS_inst ( .I(ddr2_clk_q[obuf_i]), .O(ddr2_ck[obuf_i]), .OB(ddr2_ck_n[obuf_i]) ); end endgenerate endmodule
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