HD6417616 RENESAS [Renesas Technology Corp], HD6417616 Datasheet - Page 513

• Manufacturer Part Number: HD6417616
• Description: 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Two types of transfers are possible in single address mode: 1) transfers between external
devices with DACK and memory-mapped external devices; and 2) transfers between external
devices with DACK and external memory. For both of them, transfer must be requested by the
external request signal (DREQn). For the combination of the specifiable setting to perform
data transfer using an external request (DREQn), see table 11.9. Figure 11.7 shows the DMA
transfer timing for single address mode.
Chip
Figure 11.6 Data Flow in Single Address Mode
External address bus
DMAC
: Data flow
DACKn
DREQn
Section 11 Direct Memory Access Controller (DMAC)
External data bus
Rev. 2.00 Mar 09, 2006 page 487 of 906
External device
with DACK
External
memory
REJ09B0292-0200