Interrupt Disable Register
| MFD | Management Frame sent |
| RCOMP | Receive Complete |
| RXUBR | Receive Used Bit Read |
| TXUBR | Transmit Used Bit Read |
| TUND | Ethernet Transmit Buffer Underrun |
| RLE | Retry Limit Exceeded |
| TXERR | |
| TCOMP | Transmit Complete |
| ROVR | Receive Overrun |
| HRESP | Hresp not OK |
| PFR | Pause Frame Received |
| PTZ | Pause Time Zero |