Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F402xx_v2/QSPI1/XIP_CMD_W1#0x0
XIP command word 1
XIP write second dummy cycle
XIP write operate mode
XIP write address length
XIP write instruction code
https://github.com/cmsis-svd/cmsis-svd-data