Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Toshiba/M369/PB/PUP#0x0
PB Pull-Up Control Register
PB0UP
PB1UP
PB2UP
PB3UP
PB4UP
PB5UP
PB6UP
https://github.com/cmsis-svd/cmsis-svd-data