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H8/3021 Datasheet(PDF) 131 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 131 Page - Renesas Technology Corp

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6. Bus Controller
Rev.2.00 Mar. 22, 2007 Page 107 of 684
REJ09B0352-0200
Section 6 Bus Controller
6.1
Overview
The H8/3022 Group 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.



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