Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32L562/OCTOSPI1/DCR4#0x0
DCR4
Transfer error flag
Transfer complete flag
FIFO threshold flag
Status match flag
Timeout flag
BUSY
FIFO level
https://github.com/cmsis-svd/cmsis-svd-data