Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f0/STM32F0x0/SPI1/I2SPR#0x0
I2S prescaler register
I2S Linear prescaler
Odd factor for the prescaler
Master clock output enable
https://github.com/modm-io/cmsis-svd-stm32