Control B
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| SPI0 | USART0 | ||||||
| Access | R/W | R/W | |||||
| Reset | 0 | 0 |
SPI 0 Communication
Write this bit to '1' to select alternative communication pins for SPI 0.
USART 0 Communication
Write this bit to '1' to select alternative communication pins for USART 0.