Channel B Mode Register
| TXRDY | Channel Transmit Ready Interrupt Enable |
| TXEMPTY | Channel Transmit Empty Interrupt Enable |
| UNRUN | Transmit Underrun Interrupt Enable |
| RXRDY | Channel Receive Ready Interrupt Enable |
| OVRUN | Receive Overrun Interrupt Enable |
| ENDTX | End of Transmission for Channel B Interrupt Enable |
| TXBUFE | Transmit Buffer Empty for Channel B Interrupt Enable |
| ENDRX | End of Reception for Channel B Interrupt Enable |
| RXBUFF | Receive Buffer Full for Channel B Interrupt Enable |
| SIZE | Channel B Data Size |
| CEM | Channel B Endian Mode |
| CEN | Channel B Enable |
| PDCEN | Peripheral Data Controller Channel Enable |