Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Toshiba/M369/PE/PDN#0x0
PE Pull-Down Control Register
PE0DN
PE1DN
PE2DN
PE3DN
PE4DN
PE5DN
PE6DN
PE7DN
https://github.com/cmsis-svd/cmsis-svd-data