SWCU193 April 2023 CC2340R2 , CC2340R5 , CC2340R5-Q1
Transmitter side operation (CRC8/CR16) :
TX side CRC state register resets to the seed value of 0xFF or 0xFFFF.
Receiver side operation (CRC8/CRC16) :
The RX side CRC state register resets to the seed value of 0xFF or 0xFFFF.
In case SPI functionality is not being used, the CRC engine can be used as a general-purpose CRC generator.
CTL0.GPCRCEN register bit can be set to enable this functionality. The transmit side CRC can then be used by application software when SPI enable is zero.