LM3S1776_16 Datasheet, PDF (330/742 Pages) Texas Instruments – Stellaris Microcontroller

Micro Direct Memory Access (μDMA)
Register 16: DMA Channel Primary Alternate Set (DMAALTSET), offset 0x030
Each bit of the DMAALTSET register represents the corresponding DMA channel. Writing a 1
configures the DMA channel to use the alternate control data structure. Reading the register returns
the status of which control data structure is in use for the corresponding DMA channel.
Reads
DMA Channel Primary Alternate Set (DMAALTSET)
Base 0x400F.F000
Offset 0x030
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SET[n]
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SET[n]
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:0
Name
SET[n]
Type
R
Reset
0x00
Description
Channel [n] Alternate Status
Returns the channel control data structure status.
Value Description
0 Primary
DMA channel [n] is using the primary control structure.
1 Alternate
DMA channel [n] is using the alternate control structure.
Writes
DMA Channel Primary Alternate Set (DMAALTSET)
Base 0x400F.F000
Offset 0x030
Type WO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SET[n]
Type
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SET[n]
Type
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
330
July 17, 2014
Texas Instruments-Production Data