Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA4M1AB/DAC12/DADPR#0x0
DPSEL=0
DADR0 Format Select Register
These bits are read as 0000000. The write value should be 0000000.
DADRm Format Select
0 (0): Right justified format.
1 (1): Left justified format.
https://github.com/cmsis-svd/cmsis-svd-data