Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA4W1AD/SYSTEM/BCKCR#0x0
BCLKDIV=0
External Bus Clock Control Register
EBCLK Pin Output Select
0 (0): BCLK
1 (1): BCLK/2
These bits are read as 0000000. The write value should be 0000000.
https://github.com/cmsis-svd/cmsis-svd-data