CHAPTER 6 DMA FUNCTIONS (DMA CONTROLLER)
User’s Manual U12688EJ4V0UM00
171
6.3.6 DMA trigger factor registers 0 to 3 (DTFR0 to DTFR3)
These 8-bit registers are used to control the DMA transfer start trigger through interrupt requests from peripheral
I/O.
The interrupt requests that are set with these registers start DMA transfer.
These registers can be read/written in 8- or 1-bit units.
0
IFC00
Address
FFFFF5E0H
After reset
00H
1
IFC01
2
IFC02
3
IFC03
4
IFC04
5
IFC05
6
0
7
0
IFC10
IFC11
IFC12
IFC13
IFC14
IFC15
0
0
IFC20
IFC21
IFC22
IFC23
IFC24
IFC25
0
0
IFC30
IFC31
IFC32
IFC33
IFC34
IFC35
0
0
DTFR0
FFFFF5E2H
00H
DTFR1
FFFFF5E4H
00H
DTFR2
FFFFF5E6H
00H
DTFR3
Bit Position
Bit Name
Function
Interrupt Factor Code
This code indicates the source of the DMA transfer trigger.
IFCn5
IFCn4
IFCn3
IFCn2
IFCn1
IFCn0
Interrupt Source
0
0
0
0
0
0
DMA request from
internal peripheral I/O
disabled.
0
0
0
0
0
1
INTCM40
0
0
0
0
1
0
INTCM41
0
0
0
0
1
1
INTCSI0
0
0
0
1
0
0
INTSR0
0
0
0
1
0
1
INTST0
0
0
0
1
1
0
INTCSI1
0
0
0
1
1
1
INTSR1
0
0
1
0
0
0
INTST1
0
0
1
0
0
1
INTCSI2
0
0
1
0
1
0
INTCSI3
0
0
1
0
1
1
INTP100/INTCC100
0
0
1
1
0
0
INTP101/INTCC101
0
0
1
1
0
1
INTP102/INTCC102
0
0
1
1
1
0
INTP103/INTCC103
0
0
1
1
1
1
INTP110/INTCC110
0
1
0
0
0
0
INTP111/INTCC111
0
1
0
0
0
1
INTP112/INTCC112
0
1
0
0
1
0
INTP113/INTCC113
5 to 0
IFCn5 to
IFCn0
Содержание V850E/MS1 UPD703100
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