Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E1A1/GPIO/PFR4#0x0
Port Function Setting Register 4
Bit6 of PFR4
Bit7 of PFR4
Bit9 of PFR4
Bit10 of PFR4
https://github.com/cmsis-svd/cmsis-svd-data