37.9.1 Data Bus Width
A data bus width of 8 or 16 bits can be selected for each chip select. This option is controlled by the bit DBW in the Mode register (HSMC_MODE) for the corresponding chip select.
The figure Memory Connection for an 8-bit Data Bus shows how to connect a 512 KB x 8-bit memory on NCS2. The figure Memory Connection for a 16-bit Data Bus shows how to connect a 512 KB x 16-bit memory on NCS2.