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HD6432351 Datasheet(PDF) 291 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 291 Page - Renesas Technology Corp

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Section 7 DMA Controller (DMAC)
Rev. 3.00 Sep 15, 2006 page 257 of 988
REJ09B0330-0300
Acquire bus
ETCRAL = ETCRAL –1
Transfer request?
ETCRAL = H'00
Release bus
BLKDIR = 0
ETCRAL = ETCRAH
ETCRB = ETCRB –1
ETCRB = H'0000
Start
(DTE = DTME = 1)
Read address specified by MARA
MARA = MARA + SAIDE · (–1)SAID · 2DTSZ
Write to address specified by MARB
MARB = MARB + DAIDE · (–1)DAID · 2DTSZ
MARB = MARB – DAIDE · (–1)DAID · 2DTSZ · ETCRAH
MARA = MARA – SAIDE · (–1)SAID · 2DTSZ · ETCRAH
No
Yes
No
Yes
No
Yes
No
Yes
Clear DTE bit to 0
to end transfer
Figure 7.15 Operation Flow in Block Transfer Mode



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