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From the description of Table 29-3. Peripheral Signal Multiplexer in 280049C TRM which shown in the diagram, the CLB3_OUT1_1 (CLB3_OUT9) intersect with SPIDAT(IN) of SPIA and the CLB4_OUT1_1 (CLB3_OUT9) intersect with SPIDAT(IN) of SPIB.
My question ：
What does SPIDAT(IN) means? SPI_SOMI or SPI_SIMO?
Hi Liu,
Technically speaking, SPIDAT refers to the serial data register which stores the transmit and receive data. Refer to this picture from the TRM
So in this case, SPIDAT (IN) refers to the bits that are shifted into the LSB of the shift register from the SPI-SOMI signal
Regards,
Peter
