LM3S316-IQN25 Luminary Micro, Inc., LM3S316-IQN25 Datasheet - Page 336
![no-image](/images/no-image-200.jpg)
LM3S316-IQN25
Manufacturer Part Number
LM3S316-IQN25
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet
1.LM3S316-IQN25.pdf
(409 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM3S316-IQN25-C2
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S316-IQN25-C2T
Manufacturer:
Texas Instruments
Quantity:
10 000
- Current page: 336 of 409
- Download datasheet (3Mb)
Analog Comparator
15.3
336
Figure 15-3. Comparator Internal Reference Structure
Table 15-2. Internal Reference Voltage and ACREFCTL Field Values
Initialization and Configuration
The following example shows how to configure analog comparator to read back its output value
from an internal register.
1.
2.
3.
4.
EN Bit Value
Enable the analog comparator 0 clock by writing a value of 0x00100000 to the RCGC1 register
in the System Control module.
In the GPIO module, enable the GPIO port/pin associated with C0- as a GPIO input.
Configure the internal voltage reference to 1.65 V by writing the ACREFCTL register with the
value 0x0000030C.
Configure comparator 0 to use the internal voltage reference and to not output a value on the
C0O pin by writing the ACCTL0 register with the value of 0x0000040C.
EN=0
EN=1
ACREFCTL Register
VREF
RNG
EN
RNG Bit Value
RNG=X
RNG=0
RNG=1
AVDD
8R
Preliminary
0 V (GND) for any value of VREF; however, it is recommended that
RNG=1 and VREF=0 for the least noisy ground reference.
Total resistance in ladder is 32 R.
The range of internal reference in this mode is 0.825–2.37 V.
Total resistance in ladder is 24 R.
The range of internal reference for this mode is 0.0–2.0625 V.
R
Output Reference Voltage Based on VREF Field Value
15
R
14
•••
Decoder
•••
V
V
R
REF
REF
V
V
V
V
REF
REF
REF
REF
=
1
=
R
=
0.825
AV
=
=
=
AV
AV
AV
0.1375 VREF
DD
0
DD
+
DD
DD
×
0.103 VREF
8R
(
-----------------------------
×
×
×
VREF
⋅
(
------------------- -
R
--------------- -
R
--------------- -
VREF
VREF
VREF
R
R
32
24
⋅
T
T
+
)
8
internal
reference
)
October 8, 2006
Related parts for LM3S316-IQN25
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![LM3S316](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S101](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S101-CRN20-XNPT](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S102-IRN20](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S102-IRN20(T)](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S1150-IQC50-A1](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S1150-IQC50](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S1911-IRN20-A0T](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S2110-IQN20-A0](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S2965-IQC20-A0T](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S315](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S317-IQN20-A0T](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S328](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S328-IRN20-A0T](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
![LM3S328-IQN25(T)](/images/no-image3.png)
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet: