3.1 Total Bit Count Mode (BMODE = 0)

In this mode, SPIxTCTH, SPIxTCTL and SPIxTWIDTH<2:0> are combined to create a 14-bit transfer counter. When BMODE = 0 the SPI master communicates with the slave by transferring 8-bit data packets. As the data packets are sent from the SPI buffer, the transfer counter will decrement by eight with each transfer. The master will continue to send packets of data until the transfer counter has decremented to zero. Once the value stored in the transfer counter has reached zero, data transfer will cease until the transfer counter is reloaded. The SPI master will only begin sending data once the transfer counter has a non-zero value written to it.