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https://opencores.org/ocsvn/openrisc/openrisc/trunk
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| Rev 409 |
Rev 439 |
| Line 157... |
Line 157... |
begin
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begin
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if(ResetNibCnt)
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if(ResetNibCnt)
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NibCnt <= 16'h0;
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NibCnt <= 16'h0;
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else
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else
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if(IncrementNibCnt)
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if(IncrementNibCnt)
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NibCnt <= NibCnt + 1'b1;
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NibCnt <= NibCnt + 16'd1;
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end
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end
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end
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end
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assign NibCntEq7 = &NibCnt[2:0];
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assign NibCntEq7 = &NibCnt[2:0];
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assign NibCntEq15 = &NibCnt[3:0];
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assign NibCntEq15 = &NibCnt[3:0];
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assign NibbleMinFl = NibCnt >= (((MinFL-3'h4)<<1) -1); // FCS should not be included in NibbleMinFl
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assign NibbleMinFl = NibCnt >= (((MinFL-16'd4)<<1) -1); // FCS should not be included in NibbleMinFl
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assign ExcessiveDeferCnt = NibCnt[13:0] == 16'h17b7;
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assign ExcessiveDeferCnt = NibCnt[13:0] == 14'h17b7;
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assign ExcessiveDefer = NibCnt[13:0] == 16'h17b7 & ~ExDfrEn; // 6071 nibbles
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assign ExcessiveDefer = NibCnt[13:0] == 14'h17b7 & ~ExDfrEn; // 6071 nibbles
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assign IncrementByteCnt = StateData[1] & ~ByteCntMax
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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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| Line 189... |
Line 189... |
begin
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begin
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if(ResetByteCnt)
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if(ResetByteCnt)
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ByteCnt[15:0] <= 16'h0;
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ByteCnt[15:0] <= 16'h0;
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else
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else
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if(IncrementByteCnt)
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if(IncrementByteCnt)
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ByteCnt[15:0] <= ByteCnt[15:0] + 1'b1;
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ByteCnt[15:0] <= ByteCnt[15:0] + 16'd1;
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end
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end
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end
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end
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assign MaxFrame = ByteCnt[15:0] == MaxFL[15:0] & ~HugEn;
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assign MaxFrame = ByteCnt[15:0] == MaxFL[15:0] & ~HugEn;
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| Line 210... |
Line 210... |
begin
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begin
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if(StateData[1] & DlyCrcCnt == 3'h4 | StartJam | PacketFinished_q)
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if(StateData[1] & DlyCrcCnt == 3'h4 | StartJam | PacketFinished_q)
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DlyCrcCnt <= 3'h0;
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DlyCrcCnt <= 3'h0;
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else
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else
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if(DlyCrcEn & (StateSFD | StateData[1] & (|DlyCrcCnt[2:0])))
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if(DlyCrcEn & (StateSFD | StateData[1] & (|DlyCrcCnt[2:0])))
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DlyCrcCnt <= DlyCrcCnt + 1'b1;
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DlyCrcCnt <= DlyCrcCnt + 3'd1;
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end
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end
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end
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end
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