Interrupt status register
| MNGMNTDONE | Management frame sent  |  
| RXCMPLT | Receive complete  |  
| RXUSEDBITREAD | RX used bit read  |  
| TXUSEDBITREAD | TX used bit read  |  
| TXUNDERRUN | Transmit under run  |  
| RTRYLMTORLATECOL | Retry limit exceeded or late collision  |  
| AMBAERR | Transmit frame corruption due to AMBA (AHB) error.  |  
| TXCMPLT | Transmit complete  |  
| RXOVERRUN | Receive overrun  |  
| RESPNOTOK | Hresp not OK  |  
| NONZEROPFRMQUANT | Pause frame with non-zero pause quantum received  |  
| PAUSETIMEZERO | Pause Time zero  |  
| PFRMTX | Pause frame transmitted  |  
| PTPDLYREQFRMRX | PTP delay_req frame received  |  
| PTPSYNCFRMRX | PTP sync frame received  |  
| PTPDLYREQFRMTX | PTP delay_req frame transmitted  |  
| PTPSYNCFRMTX | PTP sync frame transmitted  |  
| PTPPDLYREQFRMRX | PTP pdelay_req frame received  |  
| PTPPDLYRESPFRMRX | PTP pdelay_resp frame received  |  
| PTPPDLYREQFRMTX | PTP pdelay_req frame transmitted  |  
| PTPPDLYRESPFRMTX | PTP pdelay_resp frame transmitted  |  
| TSUSECREGINCR | TSU seconds register increment  |  
| RXLPIINDC | Receive LPI indication status bit change  |  
| WOLEVNTRX | WOL event received interrupt.  |  
| TSUTIMERCOMP | TSU timer comparison interrupt.  |