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249
CK
DREQ
DRAK
Bus
cycle
DACK
CPU
CPU
CPU
CPU
DMA
C(R)
DMA
C
(R)
DMA
C(W)
1st sampling
2nd sampling
Note:
With cycle-steal and dual address operation, sampling timing is the same
whether DREQ detection is by level or by edge.
Figure 11.16 Cycle Steal, Dual Address, and Level Detection (Normal Operation)
Содержание SH7041 Series
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