// -*- verilog -*- // // USRP - Universal Software Radio Peripheral // // Copyright (C) 2008 Matt Ettus // // This program 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 2 of the License, or // (at your option) any later version. // // This program 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, write to the Free Software // Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA // // Clipping "macro", keeps the bottom bits module clip_reg #(parameter bits_in=0, parameter bits_out=0, parameter STROBED=1'b0) (input clk, input [bits_in-1:0] in, output reg [bits_out-1:0] out, input strobe_in, output reg strobe_out); wire [bits_out-1:0] temp; clip #(.bits_in(bits_in),.bits_out(bits_out)) clip (.in(in),.out(temp)); always @(posedge clk) strobe_out <= strobe_in; always @(posedge clk) if(strobe_in | ~STROBED) out <= temp; endmodule // clip_reg