HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 485

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Two kinds of transfer are possible in single address mode: (1) transfer between an external
device with DACK and a memory-mapped external device, and (2) transfer between an
external device with DACK and external memory. In both cases, only the external request
signal (DREQ) is used for transfer requests.
This LSI
Data flow
Figure 13.7 Data Flow in Single Address Mode
DMAC
External address bus
DACK
DREQ
Section 13 Direct Memory Access Controller (DMAC)
External data bus
Rev. 4.00 Sep. 14, 2005 Page 435 of 982
External device
with DACK
External
memory
REJ09B0023-0400