Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F275x/MCTM/MCTM_CHPOLR#0x0
MCTM_CHPOLR
CH0P
CH0NP
CH1P
CH1NP
CH2P
CH2NP
CH3P
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data