CHAPTER 13 DMA FUNCTIONS (DMA CONTROLLER)
Preliminary User’s Manual U15905EJ1V0UD
406
13.3.2 DMA destination address registers 0 to 3 (DDA0 to DDA3)
These registers are used to set the DMA destination address (28 bits each) for DMA channel n (n = 0 to 3). They
are divided into two 16-bit registers, DDAnH and DDAnL.
(1) DMA destination address registers 0H to 3H (DDA0H to DDA3H)
These registers can be read or written in 16-bit units.
DDAnH
(n = 0 to 3)
External memory, on-chip peripheral I/O
Internal RAM
IR
0
1
DMA destination address specification
After reset:
Undefined R/W
Address:
DDA0H: FFFFF086H, DDA1H: FFFFF08EH,
DDA2H: FFFFF096H, DDA3H: FFFFF09EH
DA23
DA22
DA21
DA20
DA19
DA18
DA17
DA16
IR
0
0
0
0
0
DA25
DA24
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
Set the DMA destination addresses (A25 to A16). During DMA transfer,
they store the next DMA transfer destination address.
DA25 to
DA16
(2) DMA destination address registers 0L to 3L (DDA0L to DDA3L)
These registers can be read or written in 16-bit units.
DDAnL
(n = 0 to 3)
After reset:
Undefined R/W
Address:
DDA0L: FFFFF084H, DDA1L: FFFFF08CH,
DDA2L: FFFFF094H, DDA3L: FFFFF09CH
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
DA15
DA14
DA13
DA12
DA11
DA10
DA9
DA8
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
Set the DMA destination addresses (A15 to A0). During DMA transfer,
they store the next DMA transfer destination address.
DA15 to
DA0
Содержание V850ES/SA2 UPD703201
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