LM3S2965-IQC20-A0T Luminary Micro, Inc., LM3S2965-IQC20-A0T Datasheet - Page 448
![no-image](/images/no-image-200.jpg)
LM3S2965-IQC20-A0T
Manufacturer Part Number
LM3S2965-IQC20-A0T
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet
1.LM3S2965-IQC20-A0T.pdf
(542 pages)
- Current page: 448 of 542
- Download datasheet (5Mb)
Analog Comparators
17.2.1
448
Table 17-3. Comparator 2 Operating Modes
Internal Reference Programming
The structure of the internal reference is shown in Figure 17-3 on page 448. This is controlled by a
single configuration register (ACREFCTL). Table 17-4 on page 448 shows the programming options
to develop specific internal reference values, to compare an external voltage against a particular
voltage generated internally.
Figure 17-3. Comparator Internal Reference Structure
VREF
Table 17-4. Internal Reference Voltage and ACREFCTL Field Values
ACCNTL2
ASRCP
00
01
10
11
ACREFCTL Register
EN Bit Value
RNG
EN
EN=0
AVDD
Comparator 2
VIN-
C2-
C2-
C2-
C2-
RNG Bit Value
VIN+
reserved
RNG=X
C2+
C0+
Vref
8R
Output
n/a
n/a
n/a
n/a
Output Reference Voltage Based on VREF Field Value
0 V (GND) for any value of VREF; however, it is recommended that RNG=1 and VREF=0
for the least noisy ground reference.
R
Interrupt
yes
yes
yes
yes
15
R
Preliminary
ADC Trigger
14
Decoder
yes
yes
yes
yes
R
1
R
0
8R
internal
reference
June 04, 2007
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