Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B840F1024IQ64/GPCRC/DATAREV#0x0
CRC Data Reverse Register
Data Reverse Value
https://github.com/cmsis-svd/cmsis-svd-data