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H83069RF Datasheet(PDF) 261 Page - Renesas Technology Corp

Part # H83069RF
Description  Renesas 16-Bit Single-Chip Microcomputer
PDF  1003 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H83069RF Datasheet(HTML) 261 Page - Renesas Technology Corp

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Rev. 5.0, 09/04, page 239 of 978
Figure 7.17 shows the timing when the DMAC is activated by level-sensitive low
DREQ input in
normal mode.
DREQ
RD
HWR
φ
LWR
,
T2
T1
T2
T1
T2
Td
T1
T2
T1
T2
T1
T2
T1
T2
T1
CPU cycle
DMAC cycle
CPU cycle
Minimum 4 states
Next sampling point
Address
bus
Figure 7.17 Timing of DMAC Activation by Low
DREQ
DREQ
DREQ
DREQ Level in Normal Mode



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