Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F405xx_v2/I2SF5/CTRL2#0x0
control register 2
DMA receive enable
DMA transmit enable
Error interrupt enable
Receive data buffer full interrupt enable
Transmit data buffer empty interrupt enable
https://github.com/cmsis-svd/cmsis-svd-data