LM3S2965-IRN50-A1T ETC2 [List of Unclassifed Manufacturers], LM3S2965-IRN50-A1T Datasheet - Page 282
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LM3S2965-IRN50-A1T
Manufacturer Part Number
LM3S2965-IRN50-A1T
Description
Microcontroller
Manufacturer
ETC2 [List of Unclassifed Manufacturers]
Datasheet
1.LM3S2965-IRN50-A1T.pdf
(574 pages)
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Analog-to-Digital Converter (ADC)
ADC Sample Averaging Control (ADCSAC)
Base 0x4003.8000
Offset 0x030
Type R/W, reset 0x0000.0000
282
Reset
Reset
Type
Type
Bit/Field
31:3
2:0
RO
RO
31
15
0
0
Register 10: ADC Sample Averaging Control (ADCSAC), offset 0x030
This register controls the amount of hardware averaging applied to conversion results. The final
conversion result stored in the FIFO is averaged from 2
ADC speed. If AVG is 0, the sample is passed directly through without any averaging. If AVG=6,
then 64 consecutive ADC samples are averaged to generate one result in the sequencer FIFO. An
AVG = 7 provides unpredictable results.
RO
RO
30
14
0
0
reserved
Name
AVG
RO
RO
29
13
0
0
RO
RO
28
12
0
0
RO
RO
Type
27
11
R/W
0
0
RO
RO
RO
26
10
0
0
Reset
0x00
0x0
reserved
RO
RO
25
0
9
0
Preliminary
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.
Hardware Averaging Control
Specifies the amount of hardware averaging that will be applied to ADC
samples. The AVG field can be any value between 0 and 6. Entering a
value of 7 creates unpredictable results.
RO
RO
Value
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
24
0
8
0
reserved
Description
No hardware oversampling
2x hardware oversampling
4x hardware oversampling
8x hardware oversampling
16x hardware oversampling
32x hardware oversampling
64x hardware oversampling
Reserved
RO
RO
23
0
7
0
AVG
RO
RO
22
0
6
0
consecutive ADC samples at the specified
RO
RO
21
0
5
0
RO
RO
20
0
4
0
RO
RO
19
0
3
0
November 30, 2007
R/W
RO
18
0
2
0
AVG
R/W
RO
17
0
1
0
R/W
RO
16
0
0
0
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