SLAZ755C May 2024 – November 2025 MSPM0L1227 , MSPM0L1227-Q1 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L2227 , MSPM0L2227-Q1 , MSPM0L2228 , MSPM0L2228-Q1
SPI Module
Functional
IDLE/BUSY status toggle after each frame receive when SPI peripheral is in only receive mode.
In case of SPI peripheral in only receive mode, the IDLE interrupt and BUSY status are toggling after each frame receive while SPI is receiving data continuously(SPI_PHASE=1). Here there is no data loaded into peripheral TXFIFO and TXFIFO is empty.
Do not use SPI peripheral only receive mode. Set SPI peripheral in transmit and receive mode. You do not need to set any data in the TX FIFO for SPI.