Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32W108/SC2_SPI/SC2_SPICR#0x0
Serial controller SPI control register
CPOL
CPHA
LSBFIRST
RPTEN
MSTR
RXMODE
https://github.com/cmsis-svd/cmsis-svd-data