Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F427/FMC/SR4#0x0
FIFO status and interrupt register 4
IRS
ILS
IFS
IREN
ILEN
IFEN
FEMPT
https://github.com/cmsis-svd/cmsis-svd-data