Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32JG1B/EFM32JG1B100F256IM32/CMU/PCNTCTRL#0x0
PCNT Control Register
PCNT0 Clock Enable
PCNT0 Clock Select
https://github.com/cmsis-svd/cmsis-svd-data