Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F435xx_v2/XMC/CMD#0x0
SDRAM Command Mode register
SDRAM Command
SDRAM Bank 2
SDRAM Bank 1
Auto-refresh times
Mode register data
https://github.com/cmsis-svd/cmsis-svd-data