Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32FG12P/EFR32FG12P431F512GM68/CRYPTO0/DATA0BYTE15#0x0
DATA0 Register Byte 15 Access
Data 0 Byte 15 Access
https://github.com/cmsis-svd/cmsis-svd-data