Datasheet

205
10.8 Memory Connection Examples
Figures 10.23–10.31 show examples of the memory connections.
As A21–A18 become input ports in power-on reset, they should be handled (e.g.
pulled down) as necessary.
SH704x
32k × 8 bits


CE
OE
CSn
RD
A0–A14
D0–D7
A0–A14
I/O0–I/O7
ROM
Figure 10.23 8-Bit Data Bus Width ROM Connection
SH704x
256k × 16 bits


ROM
CE
OE
CSn
RD
A0
A1–A18
D0–D15
A0–A17
I/O0–I/O15
Figure 10.24 16-Bit Data Bus Width ROM Connection