Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Spansion/MB9BF36xx/RTC/VBPFR#0x0
register VBPFR
bitfield VPFR0
bitfield VPFR1
bitfield VPFR2
bitfield VPFR3
bitfield SPSR0
bitfield SPSR1
https://github.com/cmsis-svd/cmsis-svd-data