SH7750_08 Datasheet, PDF (660/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 14 Direct Memory Access Controller (DMAC)
14.3.4 Types of DMA Transfer
The DMAC supports the transfers shown in table 14.6. It can operate in single address mode, in
which either the transfer source or the transfer destination is accessed using the acknowledge
signal, or in dual address mode, in which both the transfer source and transfer destination
addresses are output. The actual transfer operation timing depends on the bus mode, which can be
either burst mode or cycle steal mode.
Table 14.6 Supported DMA Transfers
Transfer Source
External device
with DACK
External memory
Memory-mapped
external device
On-chip peripheral
module
External Device
with DACK
Not available
Single address
mode
Single address
mode
Not available
Transfer Destination
External
Memory
Memory-Mapped On-Chip
External Device Peripheral Module
Single address Single address
mode
mode
Not available
Dual address Dual address mode Dual address mode
mode
Dual address Dual address mode Dual address mode
mode
Dual address Dual address mode Not available
mode
Rev.7.00 Oct. 10, 2008 Page 576 of 1074
REJ09B0366-0700