| 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 1.9 2002/04/22 13:51:44 mohor
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// Short frame and ReceivedLengthOK were not detected correctly.
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//
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// Revision 1.8 2002/02/18 10:40:17 mohor
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// Revision 1.8 2002/02/18 10:40:17 mohor
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// Small fixes.
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// Small fixes.
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//
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//
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// Revision 1.7 2002/02/15 17:07:39 mohor
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// Revision 1.7 2002/02/15 17:07:39 mohor
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// Status was not written correctly when frames were discarted because of
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// Status was not written correctly when frames were discarted because of
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| Line 91... |
Line 94... |
RxByteCnt, RxByteCntEq0, RxByteCntGreat2, RxByteCntMaxFrame, ReceivedPauseFrm,
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RxByteCnt, RxByteCntEq0, RxByteCntGreat2, RxByteCntMaxFrame, ReceivedPauseFrm,
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InvalidSymbol, MRxD, LatchedCrcError, Collision, CollValid, RxLateCollision,
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InvalidSymbol, MRxD, LatchedCrcError, Collision, CollValid, RxLateCollision,
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r_RecSmall, r_MinFL, r_MaxFL, ShortFrame, DribbleNibble, ReceivedPacketTooBig, r_HugEn,
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r_RecSmall, r_MinFL, r_MaxFL, ShortFrame, DribbleNibble, ReceivedPacketTooBig, r_HugEn,
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LoadRxStatus, StartTxDone, StartTxAbort, RetryCnt, RetryCntLatched, MTxClk, MaxCollisionOccured,
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LoadRxStatus, StartTxDone, StartTxAbort, RetryCnt, RetryCntLatched, MTxClk, MaxCollisionOccured,
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RetryLimit, LateCollision, LateCollLatched, StartDefer, DeferLatched, TxStartFrm,
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RetryLimit, LateCollision, LateCollLatched, StartDefer, DeferLatched, TxStartFrm,
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StatePreamble, StateData, CarrierSense, CarrierSenseLost, TxUsedData
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StatePreamble, StateData, CarrierSense, CarrierSenseLost, TxUsedData, LatchedMRxErr
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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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| Line 151... |
Line 154... |
output [3:0] RetryCntLatched;
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output [3:0] RetryCntLatched;
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output RetryLimit;
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output RetryLimit;
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output LateCollLatched;
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output LateCollLatched;
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output DeferLatched;
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output DeferLatched;
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output CarrierSenseLost;
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output CarrierSenseLost;
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output LatchedMRxErr;
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reg ReceiveEnd;
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reg ReceiveEnd;
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reg LatchedCrcError;
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reg LatchedCrcError;
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| Line 188... |
Line 192... |
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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LatchedMRxErr <=#Tp 1'b0;
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LatchedMRxErr <=#Tp 1'b0;
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else
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else
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if(~MRxErr & MRxDV & RxStateIdle & ~Transmitting)
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LatchedMRxErr <=#Tp 1'b0;
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else
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if(MRxErr & MRxDV & (RxStatePreamble | RxStateSFD | (|RxStateData) | RxStateIdle & ~Transmitting))
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if(MRxErr & MRxDV & (RxStatePreamble | RxStateSFD | (|RxStateData) | RxStateIdle & ~Transmitting))
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LatchedMRxErr <=#Tp 1'b1;
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LatchedMRxErr <=#Tp 1'b1;
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else
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LatchedMRxErr <=#Tp 1'b0;
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end
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end
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// ReceivedPacketGood
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// ReceivedPacketGood
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assign ReceivedPacketGood = ~LatchedCrcError & ~LatchedMRxErr;
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assign ReceivedPacketGood = ~LatchedCrcError;
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// ReceivedLengthOK
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// ReceivedLengthOK
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assign ReceivedLengthOK = RxByteCnt[15:0] >= r_MinFL[15:0] & RxByteCnt[15:0] <= r_MaxFL[15:0];
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assign ReceivedLengthOK = RxByteCnt[15:0] >= r_MinFL[15:0] & RxByteCnt[15:0] <= r_MaxFL[15:0];
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| Line 234... |
Line 237... |
ReceiveEnd <=#Tp LoadRxStatus;
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ReceiveEnd <=#Tp LoadRxStatus;
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end
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end
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// Invalid Symbol received during 100Mbps mode
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// Invalid Symbol received during 100Mbps mode
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assign SetInvalidSymbol = MRxDV & MRxErr & ~LatchedMRxErr & MRxD[3:0] == 4'he;
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assign SetInvalidSymbol = MRxDV & MRxErr & MRxD[3:0] == 4'he;
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// InvalidSymbol
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// InvalidSymbol
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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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