Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/MB9AF10xN/GPIO/PFR2#0x0
Port function setting register 2
Bit0 of PFR2
Bit1 of PFR2
Bit2 of PFR2
Bit3 of PFR2
https://github.com/cmsis-svd/cmsis-svd-data