HD6417751 Datasheet, PDF (578/1105 Pages) Renesas Technology Corp – SuperH RISC engine

DMA Operation Register (DMAOR)
31
15
98
2 10
DDT: 0: Normal DMA mode
1: On-demand data transfer mode
DDT
PR[1:0]
Figure 14.42 DDT Mode Setting
AE
NMIF
DME
CKIO
DBREQ
BAVL
TR
A25–A0
D31–D0
CMD
TDACK
ID1, ID0
DTR
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
Rev. 3.0, 04/02, page 538 of 1064