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Rev. 5.00, 09/03, page 358 of 760
Address output to external memory space
Data output from external device with DACK
DACK signal (active-low) to external device with DACK
Write strobe signal to external memory space
Address output to external memory space
Data output from external memory space
DACK signal (active-low) to external device with DACK
Read strobe signal to external memory space
(a) External device with DACK external memory space (ordinary memory)
(b) External memory space (ordinary memory) external device with DACK
CKIO
A25 to A0
D31 to D0
DACKn
CSn
WE
BS
CKIO
A25 to A0
D31 to D0
DACKn
CSn
RD
BS
Figure 11.10 Example of DMA Transfer Timing in Single Address Mode