`timescale 1ns / 1ps
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`timescale 1ns / 1ps
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// Company:
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// Company:
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// Engineer:
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// Engineer:
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//
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//
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// Create Date: 10:54:17 11/21/05
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// Create Date: 10:54:17 11/21/05
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// Design Name:
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// Design Name:
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// Module Name: rxDAchecker
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// Module Name: rxDAchecker
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// Project Name:
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// Project Name:
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// Target Device:
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// Target Device:
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// Tool versions:
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// Tool versions:
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// Description:
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// Description:
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//
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//
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// Dependencies:
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// Dependencies:
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//
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//
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// Revision:
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// Revision:
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// Revision 0.01 - File Created
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// Revision 0.01 - File Created
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// Additional Comments:
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// Additional Comments:
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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module rxDAchecker(local_invalid, broad_valid, multi_valid, MAC_Addr, da_addr);
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module rxDAchecker(local_invalid, broad_valid, multi_valid, MAC_Addr, da_addr);
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output local_invalid;
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output local_invalid;
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output broad_valid;
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output broad_valid;
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output multi_valid;
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output multi_valid;
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input [47:0] MAC_Addr;
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input [47:0] MAC_Addr;
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input [47:0] da_addr;
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input [47:0] da_addr;
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parameter Multicast = 48'h0180C2000001;
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parameter Multicast = 48'h0180C2000001;
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parameter Broadcast = 48'hffffffffffff;
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parameter Broadcast = 48'hffffffffffff;
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// check individual MAC address
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// check individual MAC address
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wire broad_valid_1;
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wire broad_valid_1;
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assign multi_valid = (da_addr~^Multicast);
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assign multi_valid = (da_addr~^Multicast);
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assign broad_valid_1 = (da_addr[7:0] ~^ Broadcast[7:0]);
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assign broad_valid_1 = (da_addr[7:0] ~^ Broadcast[7:0]);
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assign broad_valid = broad_valid_1 &(da_addr[47:8] ~^ Broadcast[47:8]);
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assign broad_valid = broad_valid_1 &(da_addr[47:8] ~^ Broadcast[47:8]);
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assign local_invalid = da_addr^MAC_Addr;
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assign local_invalid = da_addr^MAC_Addr;
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endmodule
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endmodule
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