Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E1A1/FASTIO/M_FPDOR1#0x0
Mirror Fast GPIO Output Data Register 1
Bit0 of M_FPDOR1
Bit1 of M_FPDOR1
Bit2 of M_FPDOR1
Bit3 of M_FPDOR1
Bit4 of M_FPDOR1
Bit5 of M_FPDOR1
Bit6 of M_FPDOR1
Bit7 of M_FPDOR1
https://github.com/cmsis-svd/cmsis-svd-data