HD6417727BP160CV Datasheet, PDF (471/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series

Section 14 Direct Memory Access Controller (DMAC)
CK
A25 to A0
CSn
WE
D31 to D0
DACKn
BS
CK
A25 to A0
CSn
RD
D31 to D0
DACKn
BS
Address output to external memory space
Write strobe signal to external memory space
Data output from external device with DACK
DACK signal (active-low) to external device with DACK
(a) External device with DACK external memory space (ordinary memory)
Address output to external memory space
Read strobe signal to external memory space
Data output from external memory space
DACK signal (active-low) to external device with DACK
(b) External memory space external device with DACK (active-low)
Figure 14.12 Example of DMA Transfer Timing in Single Address Mode
Rev.6.00 Mar. 27, 2009 Page 413 of 1036
REJ09B0254-0600