Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F275x/MCTM/MCTM_CHBRKCFR#0x0
MCTM_CHBRKCFR
CH0OIS
CH0OISN
CH1OIS
CH1OISN
CH2OIS
CH2OISN
CH3OIS
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data