Interrupt and Status register
| TDBE | Transmit data buffer empty flag |
| TDIS | Send interrupt status |
| RDBF | Receive data buffer full flag |
| ADDRF | 0~7 bit address match flag |
| ACKFAIL | Acknowledge failure flag |
| STOPF | Stop condition generation complete flag |
| TDC | Transmit data complete flag |
| TCRLD | Transmission is complete, waiting to load data |
| BUSERR | Bus error flag |
| ARLOST | Arbitration lost flag |
| OUF | Overflow or underflow flag |
| PECERR | PEC receive error flag |
| TMOUT | SMBus timeout flag |
| ALERTF | SMBus alert flag |
| BUSYF | Bus busy |
| SDIR | Slave data transmit direction |
| ADDR | Slave address matching value |