upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 509

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

(4)
Caution:
Cautions: 1. When the DMA transfer object is in the external memory area, set the valid chip
DMDAnH DC2 DC1 DC0
DMDAnL DA15 DA14 DA13 DA12 DA11 DA10 DA9 DA8 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0
R/W
R/W
DMA destination address register (DMDAn)
The DMDAn register is used to set the DMA destination address. When the TDIR bit (DMADCn
register) is 0, it holds the address the data is transferred to (destination), for TDIR=1 the register
holds the address data is transferred from (source). The register can be read or written in 32-bit or
16-bit units.
R/W R/W R/W
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
15
15
Write to DMDAn is permitted only when EN = 0 (DMCHCn register).
2. If the DMA transfer object is internal memory and peripheral I/O area, write “000”
Figure 15-6: DMA Destination Address Register (DMDAn) Format (1/2)
14
14
select signal for DC[2:0].
to DC[2:0].
DMDA0H=FFFFFE0EH, DMDA1H=FFFFFE1AH, DMDA2H=FFFFFE26H,
DMDA3H=FFFFFE32H, DMDA4H=FFFFFE3EH, DMDA5H=FFFFFE4AH
13
DMDA0L=FFFFFE0CH, DMDA1L=FFFFFE18H, DMDA2L=FFFFFE24H,
13
DMDA3L=FFFFFE30H, DMDA4L=FFFFFE3CH, DMDA5L=FFFFFE48H
DC2
0
0
0
0
1
1
1
1
12
12
0
R
Chapter 15 DMA Functions (DMA Controller)
11
11
0
R
DC1
User’s Manual U16702EE3V2UD00
0
0
1
1
0
0
1
1
10
10
R
0
DA25 DA24 DA23 DA22 DA21 DA20 DA19 DA18 DA17 DA16
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
9
9
DC0
0
1
0
1
0
1
0
1
8
8
7
7
CS0 is selected.
CS1 is selected.
Setting prohibited
Selected chip and selection area
6
6
5
5
4
4
3
3
2
2
1
1
0
0
Address
Address
undef.
undef.
After
reset
After
reset
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