Interrupt Enable Register
| START | START Condition Interrupt Enable |
| RSTART | Repeated START condition Interrupt Enable |
| ADDR | Address Interrupt Enable |
| TXC | Transfer Completed Interrupt Enable |
| TXBL | Transmit Buffer level Interrupt Enable |
| RXDATAV | Receive Data Valid Interrupt Enable |
| ACK | Acknowledge Received Interrupt Enable |
| NACK | Not Acknowledge Received Interrupt Enable |
| MSTOP | MSTOP Interrupt Enable |
| ARBLOST | Arbitration Lost Interrupt Enable |
| BUSERR | Bus Error Interrupt Enable |
| BUSHOLD | Bus Held Interrupt Enable |
| TXOF | Transmit Buffer Overflow Interrupt Enable |
| RXUF | Receive Buffer Underflow Interrupt Enable |
| BITO | Bus Idle Timeout Interrupt Enable |
| CLTO | Clock Low Interrupt Enable |
| SSTOP | SSTOP Interrupt Enable |