FIFO configuration register for SPI0
RXSIZE | Configures the SPI receive FIFO size. A zero values provides no System FIFO service for the related SPI receiver. |
TXSIZE | Configures the SPI transmit FIFO size. A zero values provides no System FIFO service for the related SPI transmitter. |
RESERVED | Reserved. Read value is undefined, only zero should be written. |