Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA6M3AH/BUS/SDCMOD#0x0
EMODE=0
SDC Mode Register
Endian Mode
0 (0): Endian order of SDRAM address space is the same as the endian order of the operating mode
1 (1): Endian order of SDRAM address space is not the endian order of the operating mode.
https://github.com/cmsis-svd/cmsis-svd-data