Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA2A1AB/DAC12/DAPC#0x0
PUMPEN=0
D/A Switch Charge Pump Control Register
Charge Pump Enable
0 (0): Charge pump disabled
1 (1): Charge pump enabled
These bits are read as 0000000. The write value should be 0000000.
https://github.com/cmsis-svd/cmsis-svd-data