HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 365

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 10.8 Relationship of Request Modes and Bus Modes by DMA Transfer Category
B: Burst, C: Cycle steal
Notes: 1. External requests, auto requests, and on-chip peripheral module requests are all
Addres
s Mode Transfer Category
Dual
Single
2. Access size permitted for the on-chip peripheral module register functioning as the
3. If the transfer request is an external request, only channel 0 is available.
External device with DACK and external
memory
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
X/Y memory, U memory and X/Y memory,
U memory
X/Y memory, U memory and memory-
mapped external device
X/Y memory, U memory and on-chip
peripheral module
X/Y memory, U memory and external
memory
External device with DACK and external
memory
External device with DACK and memory-
mapped external device
available. In the case of on-chip peripheral module requests, transfer source register
should be the transfer source or transfer.
transfer source or transfer destination.
Request
Mode
External
External
External
/auto
External
/auto
External
/auto
All*
All*
All*
External
/auto
External
/auto
All*
External
/auto
External
External
1
1
1
1
Bus
Mode
B/C
B/C
B/C
B/C
B/C
C
C
C
B/C
B/C
C
B/C
B/C
B/C
Rev. 1.00, 02/04, page 327 of 804
Transfer
Size (bits)
8/16/32/128
8/16/32/128
8/16/32/128
8/16/32/128
8/16/32/128
8/16/32/128*
8/16/32/128*
8/16/32/128*
8/16/32/128
8/16/32/128
8/16/32/128*
8/16/32/128
8/16/32/128
8/16/32/128
2
2
2
2
0
0
0 to 5*
0 to 5*
0 to 5*
0
0
Usable
Channels
0 to 5*
0 to 5*
0 to 5*
0 to 5*
0 to 5*
0 to 5*
0 to 5*
3
3
3
3
3
3
3
3
3
3