Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/FMC1/FMC_CSQAR1#0x0
FMC NAND command sequencer address register 1
Address Cycle 1
Address Cycle 2
Address Cycle 3
Address Cycle 4
https://github.com/modm-io/cmsis-svd-stm32