LM3S1150-IQC50-A1 Luminary Micro, Inc., LM3S1150-IQC50-A1 Datasheet - Page 363
LM3S1150-IQC50-A1
Manufacturer Part Number
LM3S1150-IQC50-A1
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet
1.LM3S1150-IQC50-A1.pdf
(471 pages)
- Current page: 363 of 471
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June 14, 2007
Figure 15-2. Structure of Comparator Unit
+ve input (alternate)
A comparator is configured through two status/control registers (ACCTL and ACSTAT ). The internal
reference is configured through one control register (ACREFCTL). Interrupt status and control is
configured through three registers (ACMIS, ACRIS, and ACINTEN). The operating modes of the
comparators are shown in the Comparator Operating Mode tables.
Typically, the comparator output is used internally to generate controller interrupts. It may also be
used to drive an external pin.
Important:
Table 15-1. Comparator 0 Operating Modes
Table 15-2. Comparator 1 Operating Modes
ACCNTL0
ASRCP
00
01
10
11
ACCNTL1
ASRCP
00
01
10
11
reference input
+ve input
Comparator 0
VIN-
Comparator 1
VIN-
C0+
C0-
C0-
C0-
C1-
C1-
C1-
C1-
-ve input
Certain register bit values must be set before using the analog comparators. The proper
pad configuration for the comparator input and output pins are described in the
Comparator Operating Mode tables.
VIN+
reserved
VIN+
C1o/C1+
Luminary Micro Confidential-Advance Product Information
reserved
C0+
C0o
Vref
C0+
Vref
Output
Output
C1o/C1+
C1o/C1+
C1o/C1+
C1o/C1+
0
1
2
C0o
C0o
C0o
yes
ACCTL
Interrupt
Interrupt
yes
yes
yes
yes
yes
yes
yes
yes
CINV
ACSTAT
IntGen
LM3S1150 Microcontroller
output
363
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