HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 482

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Direct Memory Access Controller (DMAC)
13.4.4
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 13.8.
Table 13.8 Supported DMA Transfers
Notes: 1. Dual: Dual address mode
Rev. 4.00 Sep. 14, 2005 Page 432 of 982
REJ09B0023-0400
Source
External device
with DACK
External memory
Memory-mapped
external device
On-chip
peripheral module
X/Y memory,
U memory
2. Single: Single address mode
3. 16-byte transfer is not available for on-chip peripheral modules.
DMA Transfer Types
External Device
with DACK
Not available
Dual, single
Dual, single
Not available
Not available
External
Memory
Dual, single Dual, single
Dual
Dual
Dual
Dual
Memory-Mapped
External Device
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