| Line 41... |
Line 41... |
//////////////////////////////////////////////////////////////////////
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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 1.5 2002/04/22 14:54:14 mohor
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// FCS should not be included in NibbleMinFl.
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//
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// Revision 1.4 2002/01/23 10:28:16 mohor
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// Revision 1.4 2002/01/23 10:28:16 mohor
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// Link in the header changed.
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// Link in the header changed.
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//
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//
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// Revision 1.3 2001/10/19 08:43:51 mohor
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// Revision 1.3 2001/10/19 08:43:51 mohor
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// eth_timescale.v changed to timescale.v This is done because of the
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// eth_timescale.v changed to timescale.v This is done because of the
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| Line 136... |
Line 139... |
reg [15:0] ByteCnt;
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reg [15:0] ByteCnt;
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reg [2:0] DlyCrcCnt;
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reg [2:0] DlyCrcCnt;
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assign IncrementNibCnt = StateIPG | StatePreamble | (|StateData) & ~|DlyCrcCnt[2:0] | StatePAD
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assign IncrementNibCnt = StateIPG | StatePreamble | (|StateData) | StatePAD
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| StateFCS | StateJam | StateBackOff | StateDefer & ~ExcessiveDefer & TxStartFrm;
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| StateFCS | StateJam | StateBackOff | StateDefer & ~ExcessiveDefer & TxStartFrm;
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assign ResetNibCnt = StateDefer & ExcessiveDefer & ~TxStartFrm | StatePreamble & NibCntEq15
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assign ResetNibCnt = StateDefer & ExcessiveDefer & ~TxStartFrm | StatePreamble & NibCntEq15
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| StateJam & NibCntEq7 | StateIdle | StartDefer | StartIPG | StartFCS | StartJam;
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| StateJam & NibCntEq7 | StateIdle | StartDefer | StartIPG | StartFCS | StartJam;
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| Line 168... |
Line 171... |
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assign ExcessiveDeferCnt = NibCnt[13:0] == 16'h17b7;
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assign ExcessiveDeferCnt = NibCnt[13:0] == 16'h17b7;
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assign ExcessiveDefer = NibCnt[13:0] == 16'h17b7 & ~ExDfrEn; // 6071 nibbles
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assign ExcessiveDefer = NibCnt[13:0] == 16'h17b7 & ~ExDfrEn; // 6071 nibbles
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assign IncrementByteCnt = StateData[1] & ~ByteCntMax & ~|DlyCrcCnt[2:0]
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assign IncrementByteCnt = StateData[1] & ~ByteCntMax
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| StateBackOff & (&NibCnt[6:0])
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| StateBackOff & (&NibCnt[6:0])
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| (StatePAD | StateFCS) & NibCnt[0] & ~ByteCntMax;
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| (StatePAD | StateFCS) & NibCnt[0] & ~ByteCntMax;
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assign ResetByteCnt = StartBackoff | StateIdle & TxStartFrm | PacketFinished_q;
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assign ResetByteCnt = StartBackoff | StateIdle & TxStartFrm | PacketFinished_q;
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