MPC5604B communicates with MC33978 (NXP: 22 channel multiple switch detection interface) by SPI. The SPI frame about MC33978 is 32 bits size, but MPC5604B DSPI transfer frame size is ony 16 bits. How to configure it?
Use two 16-bit frames. First PUSH command will be configured with CONT=1, second with CONT=0. This way CS stays asserted between 16-bit frames and it acts as one 32-bit data frame.
