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H83069RF Datasheet(PDF) 262 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) 262 Page - Renesas Technology Corp

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Rev. 5.0, 09/04, page 240 of 978
Figure 7.18 shows the timing when the DMAC is activated by the falling edge of
DREQ in block
transfer mode.
φ
DREQ
RD
HWR
TEND
T1
T2
T1
T2
T1
T2
T1
T2
T1
T2
T1
T2
Td
T1
T2
DMAC cycle
DMAC cycle
CPU cycle
Next sampling
Minimum 4 states
End of 1 block transfer
LWR
,
Address
bus
Figure 7.18 Timing of DMAC Activation by Falling Edge of
DREQ
DREQ
DREQ
DREQ in Block Transfer Mode



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