Status Register
| RXRDY | Receiver Ready |
| TXRDY | Transmitter Ready |
| ENDRX | End of Receiver Transfer |
| ENDTX | End of Transmitter Transfer |
| OVRE | Overrun Error |
| FRAME | Framing Error |
| PARE | Parity Error |
| TXEMPTY | Transmitter Empty |
| TXBUFE | Transmission Buffer Empty |
| RXBUFF | Receive Buffer Full |
| COMMTX | Debug Communication Channel Write Status |
| COMMRX | Debug Communication Channel Read Status |