CHAPTER 12 DMA FUNCTIONS
User’s Manual U13850EJ4V0UM
367
12.3.5 DMA channel control registers 0 to 5 (DCHC0 to DCHC5)
These registers are used to control the DMA transfer operation mode for DMA channel n.
These registers are can be read/written in 1-bit or 8-bit units.
Figure 12-9. Format of DMA Channel Control Registers 0 to 5 (DCHC0 to DCHC5) (1/2)
After reset:
00H
R/W
Address: DCHC0
FFFFF186H
DCHC3 FFFFF1B6H
DCHC1
FFFFF196H
DCHC4 FFFFF1C6H
DCHC2
FFFFF1A6H
DCHC5 FFFFF1D6H
<7>
6
<5>
4
3
<2>
<1>
<0>
DCHCn
TCn
0
DDADn
TTYPn1
TTYPn0
TDIRn
DSn
ENn
(n = 0 to 5)
TCn
DMA transfer completed/not completed
Note 1
0
Not completed
1
Completed
DDADn
Internal RAM address count direction control
0
Increment
1
Address is fixed
Channel n
DMAS2
DMAS1
DMAS0
TTYPn1
TTYPn0
DMA transfer start factor setting
0
0
INTCSI0/INTIIC0
Note 2
0
1
INTCSI1/INTSR0
1
0
INTAD
0
x
x
x
1
1
INTTM00
0
0
0
INTCSI0/INTIIC0
Note 2
1
0
0
INTCSI1/INTSR0
0
1
INTST0
1
0
INTP0
1
x
x
x
1
1
INTTM10
0
0
0
INTIIC1
Note 2
1
0
0
INTCSI3/INTSR1
0
1
INTP6
1
0
INTIE1 (V850/SB2 only)
2
x
x
x
1
1
INTAD
0
0
0
INTIIC1
Note 2
1
0
0
INTCSI3/INTSR1
0
1
INTCSI2
1
0
INTIE1 (V850/SB2 only)
3
x
x
x
1
1
INTTM4