SH7706 Datasheet, PDF (320/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 9 Direct Memory Access Controller (DMAC)
9.4.4 DMA Transfer Types
The DMAC supports the transfers shown in table 9.4. The dual address mode has the direct
address mode and the indirect address mode. In the direct address mode, an output address value is
the data transfer target address; in the indirect address mode, the value stored in the output
address, not the output address value itself, is the data transfer target address. A data transfer
timing depends on the bus mode, which has cycle steal mode and burst mode.
Table 9.4 Supported DMA Transfers
Source
External device with
DACK
External Device
with DACK
Not available
Destination
External
Memory
Memory-
Mapped External
Device
Dual, single Dual, single
On-Chip
Peripheral
Module
Not available
External memory
Dual, single
Dual
Dual
Dual
Memory-mapped
external device
Dual, single
Dual
Dual
Dual
On-chip peripheral
module
Not available
Dual
Dual
Dual
Notes: 1. Dual: Dual address mode
2. Single: Single address mode
3. The dual address mode includes the direct address mode and the indirect address
mode.
4. 16-byte transfer is not available for on-chip peripheral modules.
Rev. 5.00 May 29, 2006 page 272 of 698
REJ09B0146-0500