Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32MG13P/EFR32MG13P731F512GM48/CRYPTO1/QDATA1#0x0
QDATA1 Register Access
Quad Data 1 Access
https://github.com/cmsis-svd/cmsis-svd-data