Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Toshiba/M061/RTC/RESTR#0x0
RTC Reset register
DIS8HZ
DIS4HZ
DIS2HZ
RESTALM
RSTTMR
DIS16HZ
DIS1HZ
https://github.com/cmsis-svd/cmsis-svd-data