SH7709S Datasheet, PDF (405/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Relationship between Request Modes and Bus Modes by DMA Transfer Category: Table
11.6 shows the relationship between request modes and bus modes by DMA transfer category.
Table 11.6 Relationship between Request Modes and Bus Modes by DMA Transfer
Category
Address
Mode
Transfer Category
Request Bus Transfer Usable
Mode
Mode Size (Bits) Channels
Dual
External device with DACK and
external memory
External B/C
8/16/32/128 0,1
External device with DACK and
memory-mapped external device
External memory and external
memory
External memory and memory-
mapped external device
Memory-mapped external device
and memory-mapped external
device
External memory and on-chip
peripheral module
Memory-mapped external device
and on-chip peripheral module
On-chip peripheral module and on-
chip peripheral module
External
All^*1
All ^*1
All ^*1
All ^*2
All ^*2
All ^*2
B/C
B/C
B/C
B/C
B/C^*3
B/C^*3
B/C^*3
8/16/32/128 0, 1
8/16/32/128 0–3^*5
8/16/32/128 0–3^*5
8/16/32/128 0–3^*5
8/16/32^*4
8/16/32^*4
8/16/32^*4
0–3^*5
0–3^*5
0–3^*5
Single
External device with DACK and
external memory
External B/C
8/16/32/128 0, 1
External device with DACK and External B/C
memory-mapped external device
8/16/32/128 0, 1
B: Burst, C: Cycle-steal
Notes: 1. External requests, auto requests and on-chip peripheral module (CMT) requests are all
available.
2. External requests, auto requests and on-chip peripheral module requests are all
available. When the IrDA, SCIF, or A/D converter is also the transfer request source,
however, the transfer destination or transfer source must be the IrDA, SCIF, or A/D
converter, respectively.
3. If the transfer request source is the IrDA, SCIF, or A/D converter only cycle-steal mode
is available.
4. The access size permitted when the transfer destination or source is an on-chip
peripheral module register.
5. If the transfer request is an external request, only channels 0 and 1 are available.
Rev. 5.00, 09/03, page 361 of 760