HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 500

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Relationship of Request Modes and Bus Modes by DMA Transfer Category: Table 11.8
shows the relationship between request modes, bus modes, etc., by DMA transfer category.
Table 11.8 Relationship of Request Modes and Bus Modes by DMA Transfer Category
Address
Mode
Single
Dual
Transfer Range
Between external memory and external
device with DACK
Between external device with DACK, and
memory mapped external device
Between external memories
Between external memory and memory
mapped external device
Between memory mapped external devices External
Between external memory and internal
peripheral module
Between memory mapped external device
and internal peripheral module
Between internal memories
Between internal memory and memory
mapped external device*
5
Request Mode*
External
External
External
Automatic
Internal peripheral
module*
External
Automatic
Internal peripheral
module*
Automatic
Internal peripheral
module*
External
Automatic
Internal peripheral
module*
External
Automatic
Internal peripheral
module*
Automatic
External
Automatic
Internal peripheral
module*
1
1
1
2
2
1
3
Bus
Mode*
B/C
B/C
B/C
B/C
C
B/C
B/C
C
B/C
B/C
C
B/C
B/C
C
B/C
B/C
C
B/C
B/C
B/C
C
7
Transfer
Size (Byte)
1/2/4/16*
1/2/4/16*
1/2/4/16*
1/2/4/16
1/2/4
1/2/4/16*
1/2/4/16
1/2/4
1/2/4/16*
1/2/4/16
1/2/4
1/2/4*
1/2/4*
1/2/4*
1/2/4*
1/2/4*
1/2/4*
1/2/4/16
1/2/4/16*
1/2/4/16
1/2/4
4
4
4
4
4
4
485
8
8
8
8
8
8