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[ethmac] rxaddrcheck

just wonder if RxAbort is updated correctly in eth_rxaddrcheck:

RxAddressInvalid depends on UnicastOK which is finally updated when 
ByteCnt is 7, so RxAbort should only be updated when ByteCnt is 8 and 
not 7. 

.....
assign RxAddressInvalid = ~(UnicastOK | BroadcastOK | MulticastOK | 
r_Pro);
.....
.....
  else if(RxAddressInvalid & ByteCntEq7 & RxCheckEn)
    RxAbort <= #Tp 1'b1;
.....
.....
  if(RxCheckEn & ByteCntEq7)
    UnicastOK <= #Tp ( RxData[7:0] == MAC[7:0])   & UnicastOK;
.....
.....
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