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R01UH0336EJ0102 Rev.1.02
Page 218 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 5 DMA Module
5.5.11
DDCn (n = 0 to 7): DMA Destination Chip Select Register
This 16-bit register selects the target area containing the transfer destination.
Access
This register is readable/writable in 16-bit units.
Address
DDC7: FFFF 7478
H
, DDC6: FFFF 7448
H
, DDC5: FFFF 7418
H
,
DDC4: FFFF 73E8
H
, DDC3: FFFF73B8
H
, DDC2: FFFF 7388
H
,
DDC1: FFFF 7358
H
, DDC0: FFFF 7328
H
Initial value
0001
H
This register is initialized by a reset from any source.
Caution 1.
Writing to these bits is prohibited while DMA transfer is enabled (DTSnDTE bit
= 1). Operation is not guaranteed if this is attempted.
Caution 2. Set the DDCnDCS0 and DDCnDCSE bits so that only one of them is 1.
Operation is not guaranteed if both bits are set to 1.
Caution 3. Be sure to set the DDCnDCS1 bit to 0.
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
7
6
5
4
3
2
1
0
0
0
0
0
0
DDCn
DCS1
DDCn
DCS0
DDCn
DCSE
R
R
R
R
R
R/W
R/W
R/W
Bit Position
Bit Name
Function
2
1
0
DDCnDCS1
DDCnDCS0
DDCnDCSE
DMA destination chip select
These bits specify an area to be selected as the transfer destination of channel
n.
DDCnD
CS1
DDCnD
CS0
DDCnD
CSE
Selected Area
0
0
1
Data-flash, peripheral I/O area
0
1
0
Code-flash, on-chip RAM
Other than the above
Setting prohibited