Interrupt & status register
| PE | Parity error |
| FE | Framing error |
| NF | Noise detected flag |
| ORE | Overrun error |
| IDLE | Idle line detected |
| RXNE | Read data register not empty |
| TC | Transmission complete |
| TXE | Transmit data register empty |
| LBDF | LIN break detection flag |
| CTSIF | CTS interrupt flag |
| CTS | CTS flag |
| RTOF | Receiver timeout |
| EOBF | End of block flag |
| ABRE | Auto baud rate error |
| ABRF | Auto baud rate flag |
| BUSY | Busy flag |
| CMF | character match flag |
| SBKF | Send break flag |
| RWU | Receiver wakeup from Mute mode |
| WUF | Wakeup from Stop mode flag |
| TEACK | Transmit enable acknowledge flag |
| REACK | Receive enable acknowledge flag |