There is provision for a single EEPROM connected via the I2C bus. All specification boards have an 8KBit (1KB) device fitted as standard but up to 256KBit can be accommodated. The EEPROM is a seven bit addressed device at location 0xA0. The device is typically used to hold the non volatile settings in the ABLE bootloader.
The IM2440D20 has provision for a single NAND flash device. This device typically contains the bootloader and JFFS2 filesystem with a Linux image to boot, though it can contain anything the user requires. The flash is implemented as a single device, which is connected using the processors NAND bus.