Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F423xx_v2/QSPI1/CMD_W3#0x0
Command word 3
Write data enable
Read spi status enable
Read spi status configure
SPI operate mode
Performance enhance mode operate code
Instruction code
https://github.com/cmsis-svd/cmsis-svd-data