HD6417750RF240DV Datasheet, PDF (674/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

Section 14 Direct Memory Access Controller (DMAC)
DMA Operation Register (DMAOR)
31
15
SH7750, SH7750S, SH7750R Group
98
4 2 10
DDT: 0: Normal DMA mode
1: On-demand data transfer mode
DDT
PR[1:0]
AE
COD ^NMIF
(SH7750S) DME
Figure 14.42 DDT Mode Setting
CLK
DBREQ
BAVL
TR
A25–A0
D63–D0
CMD
TDACK
ID1, ID0
DTR
MD = 01
No DMA request sampling
CA
CA
D0 D1 D2 D3 D0 D1 D2 D3 D1 D2 D3
WT
WT
Start of data transfer
Figure 14.43 Single Address Mode/Burst Mode/Edge Detection/
External Device → External Bus Data Transfer
Page 622 of 1076
R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013