Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F175x/FMC/FMC_OIER#0x0
FMC_OIER
ORFIEN
ITADIEN
OBEIEN
IOCMIEN
OREIEN
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data