HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 489

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

Table 13.9 Relationship of Request Modes and Bus Modes by DMA Transfer Category
[Legend]
B: Burst
C: Cycle steal
Notes: 1. External requests, auto requests, and on-chip peripheral module requests are all
Address
Mode
Dual
Single
2. External requests, auto requests, and on-chip peripheral module requests are all
3. For on-chip peripheral module requests, the transfer source is in cycle steal mode
4. Access size permitted for the on-chip peripheral module register functioning as the
5. If the transfer request is an external request, channels 0 to 1 are only available.
Transfer Category
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, however, CMT0, CMT1,
and MTU0 to MTU4 are only available.
available. However, for on-chip peripheral module requests, the module must be
designated as the transfer request source or the transfer destination except CMT0,
CMT1, and MTU0 to MTU4.
except CMT0, CMT1, and MTU0 to MTU4.
transfer source or transfer destination.
Section 13 Direct Memory Access Controller (DMAC)
Request
Mode
External
External
All*
All*
All*
All*
All*
All*
All*
All*
All*
All*
External
External
1
1
1
2
2
2
1
1
2
1
Rev. 4.00 Sep. 14, 2005 Page 439 of 982
B/C
B/C
B/C
B/C
B/C
B/C
Bus
Mode
B/C
B/C
B/C*
B/C*
B/C*
B/C*
B/C
B/C
3
3
3
3
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
REJ09B0023-0400
4
4
4
4
Usable
Channels
0, 1
0, 1
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0 to 3*
0, 1
0, 1
5
5
5
5
5
5
5
5
5
5