SH7730 Datasheet, PDF (482/1188 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7780 Series

Section 12 Direct Memory Access Controller (DMAC)
12.4.3 DMA Transfer Types
DMA transfer type is 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 12.8.
Table 12.8 Supported DMA Transfers
Destination
Source
External
Device with External
DACK
Memory
Memory-
Mapped
External
Device
On-Chip
Peripheral
Module
IL Memory
External device with DACK Not
available
Dual
Dual
Not
available
Not
available
External memory
Dual
Dual
Dual
Dual
Dual
Memory-mapped external
device
Dual
Dual
Dual
Dual
Dual
On-chip peripheral module Not
available
Dual
Dual
Dual
Dual
IL memory
Not
available
Dual
Dual
Dual
Dual
Notes: 1. Dual: Dual address mode
2. For on-chip peripheral modules, 16-byte transfer is available only by registers which
can be accessed in longword units.
Rev. 1.00 Sep. 19, 2007 Page 434 of 1136
REJ09B0359-0100