Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F437xx_v2/USB_OTG1_GLOBAL/GRXSTSR_Device#0x0
OTGFS Receive status debug read(Device mode)
Endpoint number
Byte count
Data PID
Packet status
Frame number
https://github.com/cmsis-svd/cmsis-svd-data