19.3.5 SMC NAND Flash Chip Select Configuration
The SMC Nand Flash Chip Select Configuration Register (CCFG_SMCNFCS) manages the chip select signal (NCSx) and its assignment to NAND Flash.
Each NCSx may or may not be individually assigned to NAND Flash. When the NCSx is assigned to NAND Flash, the signals NANDOE and NANDWE are used for the NCSx signals selected.