| 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 1.10 2002/07/25 18:17:46 mohor
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// InvalidSymbol generation changed.
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//
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// Revision 1.9 2002/04/22 13:51:44 mohor
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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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// Short frame and ReceivedLengthOK were not detected correctly.
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//
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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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| Line 94... |
Line 97... |
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, LatchedMRxErr
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StatePreamble, StateData, CarrierSense, CarrierSenseLost, TxUsedData, LatchedMRxErr, Loopback
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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 137... |
Line 140... |
input TxStartFrm;
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input TxStartFrm;
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input StatePreamble;
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input StatePreamble;
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input [1:0] StateData;
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input [1:0] StateData;
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input CarrierSense;
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input CarrierSense;
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input TxUsedData;
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input TxUsedData;
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input Loopback;
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output ReceivedLengthOK;
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output ReceivedLengthOK;
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output ReceiveEnd;
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output ReceiveEnd;
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output ReceivedPacketGood;
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output ReceivedPacketGood;
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| Line 384... |
Line 388... |
always @ (posedge MTxClk or posedge Reset)
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always @ (posedge MTxClk 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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CarrierSenseLost <=#Tp 1'b0;
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CarrierSenseLost <=#Tp 1'b0;
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else
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else
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if((StatePreamble | (|StateData)) & ~CarrierSense & ~Collision)
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if((StatePreamble | (|StateData)) & ~CarrierSense & ~Loopback & ~Collision)
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CarrierSenseLost <=#Tp 1'b1;
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CarrierSenseLost <=#Tp 1'b1;
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else
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else
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if(TxStartFrm)
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if(TxStartFrm)
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CarrierSenseLost <=#Tp 1'b0;
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CarrierSenseLost <=#Tp 1'b0;
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end
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end
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