LM3S8938 Datasheet, PDF (494/550 Pages) List of Unclassifed Manufacturers – Microcontroller

Analog Comparators
Bit/Field
6:5
4
3:2
1
0
Name
TSEN
ISLVAL
ISEN
CINV
reserved
Type
R/W
R/W
R/W
R/W
RO
Reset
0
Description
The TSEN field specifies the sense of the comparator output that
generates an ADC event. The sense conditioning is as follows:
TSEN Function
00 Level sense, see TSLVAL
01 Falling edge
10 Rising edge
11 Either edge
0
The ISLVAL bit specifies the sense value of the input that generates
an interrupt if in Level Sense mode. If 0, an interrupt is generated if the
comparator output is Low. Otherwise, an interrupt is generated if the
comparator output is High.
0
The ISEN field specifies the sense of the comparator output that
generates an interrupt. The sense conditioning is as follows:
ISEN Function
00 Level sense, see ISLVAL
01 Falling edge
10 Rising edge
11 Either edge
0
The CINV bit conditionally inverts the output of the comparator. If 0, the
output of the comparator is unchanged. If 1, the output of the comparator
is inverted prior to being processed by hardware.
0
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.
494
June 14, 2007
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