SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The RX0_OVERFLOW event is activated in slave mode in transmit-and-receive mode or receive-only mode when a channel is enabled and the MCSPI_RXx register or FIFO is full when a new SPI word is received. The MCSPI_RXx register is always overwritten with the new SPI word. If the FIFO is enabled, data within the FIFO are overwritten; it must be considered as corrupted. The RX0_OVERFLOW event should not appear in slave mode using the FIFO.
The RX0_OVERFLOW event indicates an error (data loss) in slave mode.
The MCSPI_IRQSTATUS[3] RX0_OVERFLOW interrupt status bit must be cleared for interrupt line deassertion (if the event is enabled as the interrupt source).