HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 496

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

Section 10
10.4.4
DMA transfer has two types; single address mode transfer and dual address mode transfer. They
depend on the number of bus cycles of access to source and destination. A data transfer timing
depends on the bus mode, which has cycle steal mode and burst mode. The DMAC supports the
transfers shown in table 10.7.
Table 10.7 Supported DMA Transfers
Notes: 1. Dual: Dual address mode
Rev. 3.00 Jan. 18, 2008 Page 434 of 1458
REJ09B0033-0300
Source
External device with DACK
External memory
Memory-mapped external
device
On-chip peripheral module
X/Y memory
2. Single: Single address mode
3. For on-chip peripheral modules, 16-byte transfer is available only by registers which
DMA Transfer Types
can be accessed in longword units.
Direct Memory Access Controller (DMAC)
External
Device with
DACK
Not
available
Dual, single Dual
Dual, single Dual
Not
available
Not
available
External
Memory
Dual,
single
Dual
Dual
Memory-
Mapped
External
Device
Dual,
single
Dual
Dual
Dual
Dual
Destination
On-Chip
Peripheral
Module
Not
available
Dual
Dual
Dual
Dual
X/Y Memory
U Memory
Not
available
Dual
Dual
Dual
Dual