Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32W108/SLPTMR/SLPTMR_CR#0x0
SLPTMR configuration register
CLKSEL
PSC
DBGP
EN
REVERSE
https://github.com/cmsis-svd/cmsis-svd-data