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H8/3003 数据表(PDF) 131 Page - Renesas Technology Corp

部件名 H8/3003
功能描述  microcontroller (MCU)
PDF  715 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8/3003 数据表(HTML) 131 Page - Renesas Technology Corp

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6.3.4 Bus Control Signal Timing
8-Bit, Three-State-Access Areas: Figure 6-4 shows the timing of bus control signals for an 8-bit,
three-state-access area. The upper address bus (D15 to D8) is used to access these areas. The LWR
pin is always high. Wait states can be inserted.
Figure 6-4 Bus Control Signal Timing for 8-Bit, Three-State-Access Area
ø
Address bus
CS
AS
RD
D
to D
D to D
HWR
LWR
D
to D
D to D
n
15
8
7
0
15
8
7
0
T1
T2
T3
Read
access
Write
access
Bus cycle
External address in area n
Valid
Invalid
High
Valid
Undetermined data
Note: n = 7 to 0
113



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