Bus Controller; Overview; Features - Hitachi H8/3022 Hardware Manual

6.1 Overview

The H8/3022 Series has an on-chip bus controller that divides the external address space into eight
areas and can assign different bus specifications to each. This enables different types of memory to
be connected easily.

6.1.1 Features

Features of the bus controller are listed below.
• Independent settings for address areas 0 to 7
 128-kbyte areas in 1-Mbyte mode.
 2-Mbyte areas in 16-Mbyte mode.
 Areas can be designated for two-state or three-state access.
• Four wait modes
 Programmable wait mode, pin auto-wait mode, and pin wait modes 0 and 1 can be selected.
 Zero to three wait states can be inserted automatically.
Section 6 Bus Controller
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