//////////////////////////////////////////////////////////////////////////                                                              //////// MODULE NAME: Destination Address Check                       ////////                                                              //////// DESCRIPTION: Destination Address Checker of  10 Gigabit      ////////              Ethernet MAC.                                   ////////                                                              //////// This file is part of the 10 Gigabit Ethernet IP core project ////////  http://www.opencores.org/projects/ethmac10g/                ////////                                                              //////// AUTHOR(S):                                                   //////// Zheng Cao                                                    ////////                                                              //////////////////////////////////////////////////////////////////////////////                                                              //////// Copyright (c) 2005 AUTHORS.  All rights reserved.            ////////                                                              //////// This source file may be used and distributed without         //////// restriction provided that this copyright statement is not    //////// removed from the file and that any derivative work contains  //////// the original copyright notice and the associated disclaimer. ////////                                                              //////// This source file is free software; you can redistribute it   //////// and/or modify it under the terms of the GNU Lesser General   //////// Public License as published by the Free Software Foundation; //////// either version 2.1 of the License, or (at your option) any   //////// later version.                                               ////////                                                              //////// This source 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 Lesser General Public License for more //////// details.                                                     ////////                                                              //////// You should have received a copy of the GNU Lesser General    //////// Public License along with this source; if not, download it   //////// from http://www.opencores.org/lgpl.shtml                     ////////                                                              ////////////////////////////////////////////////////////////////////////////// CVS REVISION HISTORY://// $Log: not supported by cvs2svn $// Revision 1.1.1.1  2006/05/31 05:59:41  Zheng Cao// first version//// Revision 1.1  2005/12/25 16:43:10  Zheng Cao// // ////////////////////////////////////////////////////////////////////////`include "timescale.v"`include "xgiga_define.v"module rxDAchecker(rxclk,reset,local_invalid, broad_valid, multi_valid, MAC_Addr, da_addr);   input  rxclk;   input  reset;   output local_invalid;   output broad_valid;   output multi_valid;   input [47:0] MAC_Addr;   input [47:0] da_addr;    parameter TP = 1;       reg multi_valid;   reg broad_valid;   reg local_valid;   always @(posedge rxclk or posedge reset) begin         if (reset) begin           multi_valid <=#TP 0;           broad_valid <=#TP 0;           local_valid <=#TP 0;         end         else begin           multi_valid <=#TP (da_addr==`MULTICAST);           broad_valid <=#TP (da_addr==`BROADCAST);           local_valid <=#TP (da_addr==MAC_Addr);         end  end  assign local_invalid = 1'b0;//~local_valid & ~multi_valid & ~broad_valid;endmodule