Interrupt mask register
| MNGMNTDONE | management done interrupt mask |
| RXCMPLT | receive complete interrupt mask |
| RXUSEDBITREAD | receive used bit read interrupt mask |
| TXUSEDBITREAD | transmit used bit read interrupt mask |
| TXUNDERRUN | transmit buffer under run interrupt mask |
| RTRYLMTORLATECOL | Retry limit exceeded or late collision (gigabit mode only) interrupt mask |
| AMBAERR | Transmit frame corruption due to AMBA (AHB) error interrupt mask |
| TXCMPLT | Transmit complete interrupt mask |
| UNUSED | Unused |
| RXOVERRUN | Receive overrun interrupt mask |
| RESPNOTOK | bresp/hresp not OK interrupt mask |
| NONZEROPFRMQUANT | Pause frame with non-zero pause quantum interrupt mask |
| PAUSETIMEZERO | pause time zero interrupt mask |
| PFRMTX | pause frame transmitted interrupt mask |
| PTPDLYREQFRMRX | PTP delay_req frame received mask |
| PTPSYNCFRMRX | PTP sync frame received mask |
| PTPDLYREQFRMTX | PTP delay_req frame transmitted mask |
| PTPSYNCFRMTX | PTP sync frame transmitted mask |
| PTPPDLYREQFRMRX | PTP pdelay_req frame received mask |
| PTPPDLYRESPFRMRX | PTP pdelay_resp frame received mask |
| PTPPDLYREQFRMTX | PTP pdelay_req frame transmitted mask |
| PTPPDLYRESPFRMTX | PTP pdelay_resp frame transmitted mask |
| TSUSECREGINCR | TSU seconds register increment mask |
| RXLPIINDC | RX LPI indication mask |
| WOLEVNTRX | WOL event received mask |
| TSUTIMERCOMP | TSU timer comparison interrupt mask. |