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SH7721 Datasheet(PDF) 498 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 498 Page - Renesas Technology Corp

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Section 10
Direct Memory Access Controller (DMAC)
Rev. 3.00 Jan. 18, 2008 Page 436 of 1458
REJ09B0033-0300
Figure 10.6 shows an example of DMA transfer timing in dual address mode.
CKIO
A25 to A0
Note: In transfer between external memories, with DACK output in the read cycle,
DACK output timing is the same as that of
CSn.
D31 to D0
WEn
RD
DACKn
(Active-low)
CSn
Transfer source
address
Transfer destination
address
Data read cycle
Data write cycle
(1st cycle)
(2nd cycle)
Figure 10.6
Example of DMA Transfer Timing in Dual Mode
(Source: Ordinary Memory, Destination: Ordinary Memory)



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