Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Toshiba/M367/MT0/TBFFCR#0x0
MPT Flip-Flop Control Register
MTTBFF0C
MTTBE0T1
MTTBE1T1
MTTBC0T1
MTTBC1T1
https://github.com/cmsis-svd/cmsis-svd-data