3 dmac control status register (dacsr) – FUJITSU MB91F109 FR30 User Manual
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15.3 DMAC Control Status Register (DACSR)
15.3 DMAC Control Status Register (DACSR)
The DMAC control status register (DACSR) is an internal register of the DMAC that
specifies control status information on the entire DMAC.
■
Configuration of DMAC Control Status Register (DACSR)
The configuration of the DMAC control status register (DACSR) is shown below.
■
Bit Functions of DMAC Control Status Register (DACSR)
[bit 31, 27, 23, 19, 15, 11, 7, 3] DERn (DMA ERror)
Each of these bits indicates that DMA transfer was interrupted because an error occurred in
the DMA request source for the corresponding channel n.
- 0: No error
- 1: An error occurred.
Error occurrence depnds on the DMA request source (resource). Errors do not occur in
some DMA request sources.
31
30
29
28
27
26
25
24
00000204H
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
23
22
21
20
19
18
17
16
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
15
14
13
12
11
10
9
8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DER7
DED7
DIE7
DOE7
DOE5
DIE5
DED5
DER5
DOE3
DIE3
DER3
DED3
DOE1
DIE1
DER1
DED1
DED6
DED4
DED2
DED0
DIE6
DIE4
DIE2
DIE0
DER6
DER4
DER2
DER0
DOE6
DOE4
DOE2
DOE0
Initial value: 00000000H