Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA6T1AD/SYSTEM/FLLCR1#0x0
FLLEN=0
FLL Control Register 1
FLL Enable
0 (0): FLL function is disabled.
1 (1): FLL function is enabled.
https://github.com/cmsis-svd/cmsis-svd-data