LM3S2965 Datasheet, PDF (272/542 Pages) List of Unclassifed Manufacturers – Microcontroller

Analog-to-Digital Converter (ADC)
Register 8: ADC Sample Sequencer Priority (ADCSSPRI), offset 0x020
This register sets the priority for each of the Sample Sequencers. Out of reset, Sequencer 0 has
the highest priority, and sample sequence 3 has the lowest priority. When reconfiguring sequence
priorities, each sequence must have a unique priority or the ADC behavior is inconsistent.
ADC Sample Sequencer Priority (ADCSSPRI)
Base 0x4003.8000
Offset 0x020
Type R/W, reset 0x0000.3210
31
30
29
28
27
26
Type
Reset
Type
Reset
RO
RO
0
0
15
14
reserved
RO
RO
0
0
RO
RO
0
0
13
12
SS3
R/W
R/W
1
1
RO
RO
0
0
11
10
reserved
RO
RO
0
0
25
24
23
22
reserved
RO
RO
RO
RO
0
0
0
0
9
8
SS2
R/W
R/W
1
0
7
6
reserved
RO
RO
0
0
21
20
RO
RO
0
0
5
4
SS1
R/W
R/W
0
1
19
18
RO
RO
0
0
3
2
reserved
RO
RO
0
0
17
16
RO
RO
0
0
1
0
SS0
R/W
R/W
0
0
Bit/Field
31:14
13:12
11:10
9:8
7:6
5:4
3:2
1:0
Name
reserved
SS3
reserved
SS2
reserved
SS1
reserved
SS0
Type
RO
R/W
RO
R/W
RO
R/W
RO
R/W
Reset
0
0x3
0
0x2
0
0x1
0
0x0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
The SS3 field contains a binary-encoded value that specifies the priority
encoding of Sample Sequencer 3. A priority encoding of 0 is highest
and 3 is lowest. The priorities assigned to the Sequencers must be
uniquely mapped. ADC behavior is not consistent if two or more fields
are equal.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
The SS2 field contains a binary-encoded value that specifies the priority
encoding of Sample Sequencer 2.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
The SS1 field contains a binary-encoded value that specifies the priority
encoding of Sample Sequencer 1.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
The SS0 field contains a binary-encoded value that specifies the priority
encoding of Sample Sequencer 0.
272
June 04, 2007
Preliminary