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H8S/2240 数据表(PDF) 207 Page - Renesas Technology Corp

部件名 H8S/2240
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2240 数据表(HTML) 207 Page - Renesas Technology Corp

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Section 6 Bus Controller
Rev.3.00 Mar. 26, 2007 Page 165 of 772
REJ09B0355-0300
Figure 6.18 shows an example of wait state insertion timing.
By program wait
T1
Address bus
φ
AS
RD
Data bus
Read data
Read
HWR, LWR
Write data
Write
Note:
indicates the timing of
WAIT pin sampling.
WAIT
Data bus
T2
Tw
Tw
Tw
T3
By
WAIT pin
Figure 6.18 Example of Wait State Insertion Timing
The settings after a power-on reset are: 3-state access, 3 program wait state insertion, and WAIT
input disabled. When a manual reset is performed, the contents of bus controller registers are
retained, and the wait control settings remain the same as before the reset.



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