Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32BG22C222F352GN32/HFXO0_S/LOCK#0x0
No Description
Configuration Lock Key
22542 (UNLOCK): Write this value to unlock
https://github.com/cmsis-svd/cmsis-svd-data