LM3S308 Luminary Micro, Inc, LM3S308 Datasheet - Page 370

• Manufacturer Part Number: LM3S308
• Description: Lm3s308 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Analog Comparator
15.4
Table 15-3. Analog Comparators Register Map
15.5
370
Offset
0x00
0x04
0x08
0x10
0x20
0x24
Name
ACMIS
ACRIS
ACINTEN
ACREFCTL
ACSTAT0
ACCTL0
3.
4.
5.
6.
Change the level of the signal input on C0- to see the OVAL value change.
Register Map
Table 15-3 on page 370 lists the comparator registers. The offset listed is a hexadecimal increment
to the register’s address, relative to the Analog Comparator base address of 0x4003.C000.
Register Descriptions
The remainder of this section lists and describes the Analog Comparator registers, in numerical
order by address offset.
Configure the internal voltage reference to 1.65 V by writing the ACREFCTL register with the
value 0x0000.030C.
Configure comparator 0 to use the internal voltage reference and to not invert the output on the
C0o pin by writing the ACCTL0 register with the value of 0x0000.040C.
Delay for some time.
Read the comparator output value by reading the ACSTAT0 register’s OVAL value.
R/W1C
Type
R/W
R/W
R/W
RO
RO
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
Reset
Preliminary
Description
Analog Comparator Masked Interrupt Status
Analog Comparator Raw Interrupt Status
Analog Comparator Interrupt Enable
Analog Comparator Reference Voltage Control
Analog Comparator Status 0
Analog Comparator Control 0
June 04, 2008
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