HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 500

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10
Figure 10.8 shows an example of DMA transfer timing in single address mode.
Rev. 3.00 Jan. 18, 2008 Page 438 of 1458
REJ09B0033-0300
Figure 10.8
D31 to D0
D31 to D0
A25 to A0
A25 to A0
Direct Memory Access Controller (DMAC)
DACKn
DACKn
CKIO
CKIO
CSn
CSn
WE
RD
(b) External memory space (ordinary memory) → external device with DACK
(a) External device with DACK → external memory space (ordinary memory)
Example of DMA Transfer Timing in Single Address Mode
Address output to external memory space
Select signal 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
Address output to external memory space
Select signal 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