Hitachi SH7750 Hardware Manual page 613

DMA Operation Register (DMAOR)
31
DDT: 0: Normal DMA mode
1: On-demand data transfer mode
CLK
A25–A0
D63–D0
CMD
ID1, ID0
Start of data transfer
Figure 14.43 Single Address Mode/Burst Mode/Edge Detection/
Figure 14.42 DDT Mode Setting
No DMA request sampling
CA
DTR D0
MD = 01
WT
External Device → → → → External Bus Data Transfer
15
DDT
CA
D1 D2 D3 D0 D1 D2
WT
9 8 4 2
PR[1:0] AE
NMIF
COD
(SH7750S)
D3 D1 D2 D3
Rev. 6.0, 07/02, page 563 of 986
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DME