Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F427/FMC/PCR3#0x0
PC Card/NAND Flash control register 3
PWAITEN
PBKEN
PTYP
PWID
ECCEN
TCLR
TAR
ECCPS
https://github.com/cmsis-svd/cmsis-svd-data