HD6473032F Datasheet, PDF (69/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

T₁
T₂
T₃
ø
Address bus
Address
AS, RD, HWR, LWR
D₇ to D₀
High
High impedance
Figure 2-18 Pin States during Access to On-Chip Supporting Modules
2.9.4 Access to External Address Space
The external address space is divided into eight areas (areas 0 to 7). Bus-controller settings
determine whether each area is accessed via an 8-bit or 16-bit bus, and whether it is accessed in
two or three states. For details see section 6, Bus Controller.
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