/******************************************************************************* * Module: oddr_ds * Date:2014-05-13 * Author: Andrey Filippov * Description: wrapper for ODDR+OBUFDS * * Copyright (c) 2014 Elphel, Inc. * oddr_ds.v is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * oddr_ds.v is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/> . *******************************************************************************/ `timescale 1ns/1ps module oddr_ds # ( parameter CAPACITANCE ="DONT_CARE", parameter IOSTANDARD = "DIFF_SSTL15", parameter SLEW = "SLOW", parameter DDR_CLK_EDGE = "OPPOSITE_EDGE", parameter INIT = 1'b0, parameter SRTYPE = "SYNC" )( input clk, input ce, input rst, input set, input [1:0] din, output dq, output ndq ); wire idq; /* Instance template for module ODDR */ ODDR #( .DDR_CLK_EDGE(DDR_CLK_EDGE), .INIT(INIT), .SRTYPE(SRTYPE) ) ODDR_i ( .Q(idq), // output .C(clk), // input .CE(ce), // input .D1(din[0]), // input .D2(din[1]), // input .R(rst), // input .S(set) // input ); /* Instance template for module OBUFDS */ OBUFDS #( .CAPACITANCE(CAPACITANCE), .IOSTANDARD(IOSTANDARD), .SLEW(SLEW) ) OBUFDS_i ( .O(dq), // output .OB(ndq), // output .I(idq) // input ); endmodule endmodule