SPRIE=0, SPTIE=0, MODFEN=0, TXMD=0, SPE=0, SPEIE=0, SPMS=0, MSTR=0
SPI Control Register
| SPMS | SPI Mode Select 0 (0): SPI operation (4-wire method) 1 (1): Clock synchronous operation (3-wire method) |
| TXMD | Communications Operating Mode Select 0 (0): Full-duplex synchronous serial communications 1 (1): Serial communications consisting of only transmit operations |
| MODFEN | Mode Fault Error Detection Enable 0 (0): Disables the detection of mode fault error 1 (1): Enables the detection of mode fault error |
| MSTR | SPI Master/Slave Mode Select 0 (0): Slave mode 1 (1): Master mode |
| SPEIE | SPI Error Interrupt Enable 0 (0): Disables the generation of SPI error interrupt requests 1 (1): Enables the generation of SPI error interrupt requests |
| SPTIE | Transmit Buffer Empty Interrupt Enable 0 (0): Disables the generation of transmit buffer empty interrupt requests 1 (1): Enables the generation of transmit buffer empty interrupt requests |
| SPE | SPI Function Enable 0 (0): Disables the SPI function 1 (1): Enables the SPI function |
| SPRIE | SPI Receive Buffer Full Interrupt Enable 0 (0): Disables the generation of SPI receive buffer full interrupt requests 1 (1): Enables the generation of SPI receive buffer full interrupt requests |