URL
https://opencores.org/ocsvn/ethmac/ethmac/trunk
[/] [ethmac/] [trunk/] [rtl/] [verilog/] [eth_txcounters.v] - Diff between revs 352 and 353
Go to most recent revision |
Show entire file |
Details |
Blame |
View Log
| Rev 352 |
Rev 353 |
| Line 155... |
Line 155... |
begin
|
begin
|
if(ResetNibCnt)
|
if(ResetNibCnt)
|
NibCnt <= 16'h0;
|
NibCnt <= 16'h0;
|
else
|
else
|
if(IncrementNibCnt)
|
if(IncrementNibCnt)
|
NibCnt <= NibCnt + 1'b1;
|
NibCnt <= NibCnt + 16'd1;
|
end
|
end
|
end
|
end
|
|
|
|
|
assign NibCntEq7 = &NibCnt[2:0];
|
assign NibCntEq7 = &NibCnt[2:0];
|
assign NibCntEq15 = &NibCnt[3:0];
|
assign NibCntEq15 = &NibCnt[3:0];
|
|
|
assign NibbleMinFl = NibCnt >= (((MinFL-3'h4)<<1) -1); // FCS should not be included in NibbleMinFl
|
assign NibbleMinFl = NibCnt >= (((MinFL-16'd4)<<1) -1); // FCS should not be included in NibbleMinFl
|
|
|
assign ExcessiveDeferCnt = NibCnt[13:0] == 16'h17b7;
|
assign ExcessiveDeferCnt = NibCnt[13:0] == 14'h17b7;
|
|
|
assign ExcessiveDefer = NibCnt[13:0] == 16'h17b7 & ~ExDfrEn; // 6071 nibbles
|
assign ExcessiveDefer = NibCnt[13:0] == 14'h17b7 & ~ExDfrEn; // 6071 nibbles
|
|
|
assign IncrementByteCnt = StateData[1] & ~ByteCntMax
|
assign IncrementByteCnt = StateData[1] & ~ByteCntMax
|
| StateBackOff & (&NibCnt[6:0])
|
| StateBackOff & (&NibCnt[6:0])
|
| (StatePAD | StateFCS) & NibCnt[0] & ~ByteCntMax;
|
| (StatePAD | StateFCS) & NibCnt[0] & ~ByteCntMax;
|
|
|
| Line 187... |
Line 187... |
begin
|
begin
|
if(ResetByteCnt)
|
if(ResetByteCnt)
|
ByteCnt[15:0] <= 16'h0;
|
ByteCnt[15:0] <= 16'h0;
|
else
|
else
|
if(IncrementByteCnt)
|
if(IncrementByteCnt)
|
ByteCnt[15:0] <= ByteCnt[15:0] + 1'b1;
|
ByteCnt[15:0] <= ByteCnt[15:0] + 16'd1;
|
end
|
end
|
end
|
end
|
|
|
|
|
assign MaxFrame = ByteCnt[15:0] == MaxFL[15:0] & ~HugEn;
|
assign MaxFrame = ByteCnt[15:0] == MaxFL[15:0] & ~HugEn;
|
| Line 208... |
Line 208... |
begin
|
begin
|
if(StateData[1] & DlyCrcCnt == 3'h4 | StartJam | PacketFinished_q)
|
if(StateData[1] & DlyCrcCnt == 3'h4 | StartJam | PacketFinished_q)
|
DlyCrcCnt <= 3'h0;
|
DlyCrcCnt <= 3'h0;
|
else
|
else
|
if(DlyCrcEn & (StateSFD | StateData[1] & (|DlyCrcCnt[2:0])))
|
if(DlyCrcEn & (StateSFD | StateData[1] & (|DlyCrcCnt[2:0])))
|
DlyCrcCnt <= DlyCrcCnt + 1'b1;
|
DlyCrcCnt <= DlyCrcCnt + 3'd1;
|
end
|
end
|
end
|
end
|
|
|
|
|
|
|
© copyright 1999-2024
OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.