Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32W108/GPIOC/GPIOC_CRL#0x0
Port C configuration register (Low)
CNFMODE0
CNFMODE1
CNFMODE2
CNFMODE3
https://github.com/cmsis-svd/cmsis-svd-data