Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32ZG13P/EFR32ZG13P531F512GM32/CMU/PCNTCTRL#0x0
PCNT Control Register
PCNT0 Clock Enable
PCNT0 Clock Select
https://github.com/cmsis-svd/cmsis-svd-data