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HD6432138SW Datasheet(PDF) 210 Page - Renesas Technology Corp

Part # HD6432138SW
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1061 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432138SW Datasheet(HTML) 210 Page - Renesas Technology Corp

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Section 6 Bus Controller
Rev. 4.00 Jun 06, 2006 page 156 of 1004
REJ09B0301-0400
T1
Address bus
φ
RD
Bus cycle A
Data bus
T2
T3
T1
T2
Bus cycle B
Long output
floating time
Data collision
(a) Idle cycle not inserted
T1
φ
RD
T2
T3
TI
T1
(b) Idle cycle inserted
T2
WR
WR
Address bus
Data bus
Bus cycle A
Bus cycle B
Figure 6.9 Example of Idle Cycle Operation
6.6.2
Pin States in Idle Cycle
Table 6.6 shows pin states in an idle cycle.
Table 6.6
Pin States in Idle Cycle
Pins
Pin State
A15 to A0,
IOS
Contents of next bus cycle
D7 to D0
High impedance
AS
High
RD
High
WR
High



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