Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F275x/GPIOB/GPIOB_PUR#0x0
GPIOB_PUR
PU0
PU1
PU2
PU3
PU4
PU5
PU6
PU7
PU8
PU9
PU10
PU11
PU12
PU13
PU14
PU15
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data