Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Spansion/MB9AF14xM/GPIO/PFR4#0x0
Port function setting register 4
Bit4 of PFR4
Bit5 of PFR4
Bit6 of PFR4
Bit7 of PFR4
Bit8 of PFR4
Bit9 of PFR4
Bit10 of PFR4
Bit11 of PFR4
Bit12 of PFR4
Bit13 of PFR4
Bit14 of PFR4
https://github.com/cmsis-svd/cmsis-svd-data