SH7713 Datasheet, PDF (528/904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 13 Direct Memory Access Controller (DMAC)
Table 13.8 Relationship of Request Modes and Bus Modes by DMA Transfer Category
Address
Mode
Transfer Category
Request Bus Transfer
Mode
Mode Size (bits)
Usable
Channels
Dual
External device with DACK and external External B/C 8/16/32/128 0, 1
memory
External device with DACK and memory- External B/C
mapped external device
External memory and external memory External, B/C
auto
External memory and memory-mapped External, B/C
external device
auto
Memory-mapped external device and
memory-mapped external device
External, B/C
auto
External memory and on-chip peripheral All*¹
C
module
Memory-mapped external device and All*¹
C
on-chip peripheral module
On-chip peripheral module and on-chip All*¹
C
peripheral module
X/Y memory and X/Y memory
External, B/C
auto
X/Y memory and memory-mapped
external device
External, B/C
auto
X/Y memory and on-chip peripheral
All*¹
C
module
X/Y memory and external memory
External, B/C
auto
8/16/32/128 0, 1
8/16/32/128 0 to 5*²
8/16/32/128 0 to 5*²
8/16/32/128 0 to 5*²
8/16/32*³ 0 to 5*²
8/16/32*³ 0 to 5*²
8/16/32*³ 0 to 5*²
8/16/32/128 0 to 5*²
8/16/32/128 0 to 5*²
8/16/32*³ 0 to 5*²
8/16/32/128 0 to 5*²
Single External device with DACK and external External B/C 8/16/32
0, 1
memory
External device with DACK and memory- External B/C 8/16/32
0, 1
mapped external device
[Legend] B: Burst, C: Cycle steal
Notes: 1. External requests, auto requests, and on-chip peripheral module requests are all
available. However, the request-source register must be designated as the transfer
source or the transfer destination.
2. If the transfer request is an external request, channels 0 and 1 are only available.
3. Access size permitted for each module must be used when accessing the on-chip
peripheral module.
Rev.1.50 Aug. 30, 2006 Page 488 of 860
REJ09B0288-0150