SH7263 Datasheet, PDF (459/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 10 Direct Memory Access Controller (DMAC)
10.4.4 DMA Transfer Types
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 the transfer source and destination. A data
transfer timing depends on the bus mode, which is the cycle steal mode or burst mode. The
DMAC supports the transfers shown in table 10.9.
Table 10.9 Supported DMA Transfers
Transfer Destination
External
Device with
Transfer Source DACK
External
Memory
Memory-
On-Chip
Mapped
Peripheral
External Device Module
On-Chip
Memory
External device Not available
with DACK
Dual, single Dual, single
Not available
Not
available
External memory Dual, single Dual
Dual
Dual
Dual
Memory-mapped Dual, single
external device
Dual
Dual
Dual
Dual
On-chip
peripheral
module
Not available Dual
Dual
Dual
Dual
On-chip memory Not available Dual
Dual
Dual
Dual
Notes: 1. Dual: Dual address mode
2. Single: Single address mode
3. 16-byte transfer is available only for on-chip peripheral modules that support longword
access.
Rev. 2.00 Mar. 14, 2008 Page 425 of 1824
REJ09B0290-0200