Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA4M1AB/SYSTEM/VBTWCTLR#0x0
VWEN=0
VBATT Wakeup function Control Register
VBATT wakeup enable
0 (0): Disable Wakeup function
1 (1): Enable Wakeup function
These bits are read as 0000000. The write value should be 0000000.
https://github.com/cmsis-svd/cmsis-svd-data