Interrupt Register
| RF0N | Receive FIFO 0 New Message |
| RF0W | Receive FIFO 0 Watermark Reached |
| RF0F | Receive FIFO 0 Full |
| RF0L | Receive FIFO 0 Message Lost |
| RF1N | Receive FIFO 1 New Message |
| RF1W | Receive FIFO 1 Watermark Reached |
| RF1F | Receive FIFO 1 Full |
| RF1L | Receive FIFO 1 Message Lost |
| HPM | High Priority Message |
| TC | Transmission Completed |
| TCF | Transmission Cancellation Finished |
| TFE | Tx FIFO Empty |
| TEFN | Tx Event FIFO New Entry |
| TEFW | Tx Event FIFO Watermark Reached |
| TEFF | Tx Event FIFO Full |
| TEFL | Tx Event FIFO Element Lost |
| TSW | Timestamp Wraparound |
| MRAF | Message RAM Access Failure |
| TOO | Timeout Occurred |
| DRX | Message stored to Dedicated Receive Buffer |
| ELO | Error Logging Overflow |
| EP | Error Passive |
| EW | Warning Status |
| BO | Bus_Off Status |
| WDI | Watchdog Interrupt |
| PEA | Protocol Error in Arbitration Phase |
| PED | Protocol Error in Data Phase |
| ARA | Access to Reserved Address |