| Line 39... |
Line 39... |
//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.7 2002/09/04 18:41:06 mohor
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// Bug when last byte of destination address was not checked fixed.
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//
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// Revision 1.6 2002/03/20 15:14:11 mohor
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// Revision 1.6 2002/03/20 15:14:11 mohor
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// When in promiscous mode some frames were not received correctly. Fixed.
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// When in promiscous mode some frames were not received correctly. Fixed.
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//
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//
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// Revision 1.5 2002/03/02 21:06:32 mohor
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// Revision 1.5 2002/03/02 21:06:32 mohor
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// Log info was missing.
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// Log info was missing.
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| Line 62... |
Line 65... |
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module eth_rxaddrcheck(MRxClk, Reset, RxData, Broadcast ,r_Bro ,r_Pro,
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module eth_rxaddrcheck(MRxClk, Reset, RxData, Broadcast ,r_Bro ,r_Pro,
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ByteCntEq2, ByteCntEq3, ByteCntEq4, ByteCntEq5,
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ByteCntEq2, ByteCntEq3, ByteCntEq4, ByteCntEq5,
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ByteCntEq6, ByteCntEq7, HASH0, HASH1,
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ByteCntEq6, ByteCntEq7, HASH0, HASH1,
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CrcHash, CrcHashGood, StateData, RxEndFrm,
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CrcHash, CrcHashGood, StateData, RxEndFrm,
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Multicast, MAC, RxAbort
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Multicast, MAC, RxAbort, AddressMiss
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);
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);
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parameter Tp = 1;
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parameter Tp = 1;
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input MRxClk;
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input MRxClk;
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| Line 89... |
Line 92... |
input [47:0] MAC;
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input [47:0] MAC;
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input [1:0] StateData;
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input [1:0] StateData;
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input RxEndFrm;
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input RxEndFrm;
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output RxAbort;
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output RxAbort;
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output AddressMiss;
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wire BroadcastOK;
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wire BroadcastOK;
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wire ByteCntEq2;
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wire ByteCntEq2;
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wire ByteCntEq3;
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wire ByteCntEq3;
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wire ByteCntEq4;
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wire ByteCntEq4;
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| Line 104... |
Line 107... |
wire [31:0] IntHash;
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wire [31:0] IntHash;
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reg [7:0] ByteHash;
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reg [7:0] ByteHash;
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reg MulticastOK;
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reg MulticastOK;
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reg UnicastOK;
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reg UnicastOK;
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reg RxAbort;
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reg RxAbort;
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reg AddressMiss;
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assign RxAddressInvalid = ~(UnicastOK | BroadcastOK | MulticastOK | r_Pro);
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assign RxAddressInvalid = ~(UnicastOK | BroadcastOK | MulticastOK | r_Pro);
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assign BroadcastOK = Broadcast & ~r_Bro;
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assign BroadcastOK = Broadcast & ~r_Bro;
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| Line 124... |
Line 128... |
RxAbort <= #Tp 1'b1;
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RxAbort <= #Tp 1'b1;
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else
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else
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RxAbort <= #Tp 1'b0;
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RxAbort <= #Tp 1'b0;
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end
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end
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// Hash Address Check, Multicast
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// This ff holds the "Address Miss" information that is written to the RX BD status.
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always @ (posedge MRxClk or posedge Reset)
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begin
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if(Reset)
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AddressMiss <= #Tp 1'b0;
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else if(ByteCntEq7 & RxCheckEn)
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AddressMiss <= #Tp (~(UnicastOK | BroadcastOK | MulticastOK));
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end
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// Hash Address Check, Multicast
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always @ (posedge MRxClk or posedge Reset)
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always @ (posedge MRxClk or posedge Reset)
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begin
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begin
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if(Reset)
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if(Reset)
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MulticastOK <= #Tp 1'b0;
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MulticastOK <= #Tp 1'b0;
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else if(RxEndFrm | RxAbort)
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else if(RxEndFrm | RxAbort)
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