HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 219
HD6417034B
Manufacturer Part Number
HD6417034B
Description
32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417034B.pdf
(687 pages)
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- Current page: 219 of 687
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Notes:
Normal end
(SAR, DAR, TCR, CHCR, DMAOR)
No
1. In auto-request mode, transfer begins when NMIF, AE, and TE are all 0 and the DE
2. DREQ = level detection in burst mode (external request), or cycle steal mode.
3. DREQ = edge detection in burst mode (external request), or auto request mode in
Transfer (1 transfer unit); TCR–1
TCR, SAR and DAR updated
and DME bits are set to 1.
burst mode.
DEI interrupt request
NMIF, AE, TE = 0?
NMIF = 1, AE = 1,
DE, DME = 1 and
DE = 0, and DME
Transfer request
Transfer ends
Initial settings
(when IE = 1)
occurs?
TCR = 0?
Yes
Yes
Yes
Yes
Does
Start
= 0?
*1
Figure 9.2 DMA Transfer Flowchart
No
No
No
Section 9 Direct Memory Access Controller (DMAC)
NMIF = 1, AE = 1,
Transfer aborted
DE = 0, or DME
Yes
Rev. 7.00 Jan 31, 2006 page 193 of 658
Does
= 0?
*3
DREQ detection selection
transfer request mode,
Bus mode,
system
No
*2
REJ09B0272-0700
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