Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B520F2048IQ64/CRYPTO0/DDATA0BIG#0x0
DDATA0 Register Big Endian Access
Double Data 0 Big Endian Access
https://github.com/cmsis-svd/cmsis-svd-data