Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F175x/NVIC/ICPR2#0x0
ICPR2
CLRPEND64
CLRPEND65
CLRPEND66
CLRPEND67
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data