3.3.9.2.1 Byte Write Access

Byte Write Access supports one byte write signal per byte of the data bus and a single read signal.

Note that the SMC does not allow boot in Byte Write Access mode.

For 16-bit devices, the SMC provides NWR0 and NWR1 write signals for respectively byte0 (lower byte) and byte1 (upper byte) of a 16-bit bus. One single read signal (NRD) is provided.

Byte Write Access is used to connect 2 x 8-bit devices as a 16-bit memory.

The Byte Write option is illustrated in Figure 3-16.