Texas Instruments MSP430x4xx User Manual

Page 459

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DAC12 Registers

23-13

DAC12

DAC12
CALON

Bit 9

DAC12 calibration on. This bit initiates the DAC12 offset calibration sequence
and is automatically reset when the calibration completes.
0

Calibration is not active

1

Initiate calibration/calibration in progress

DAC12IR

Bit 8

DAC12 input range. This bit sets the reference input and voltage output range.
0

DAC12 full-scale output = 3x reference voltage

1

DAC12 full-scale output = 1x reference voltage

DAC12
AMPx

Bits
7-5

DAC12 amplifier setting. These bits select settling time vs. current
consumption for the DAC12 input and output amplifiers.

DAC12AMPx

Input Buffer

Output Buffer

000

Off

DAC12 off, output high Z

001

Off

DAC12 off, output 0 V

010

Low speed/current

Low speed/current

011

Low speed/current

Medium speed/current

100

Low speed/current

High speed/current

101

Medium speed/current

Medium speed/current

110

Medium speed/current

High speed/current

111

High speed/current

High speed/current

DAC12DF

Bit 4

DAC12 data format
0

Straight binary

1

2’s compliment

DAC12IE

Bit 3

DAC12 interrupt enable
0

Disabled

1

Enabled

DAC12IFG

Bit 2

DAC12 Interrupt flag
0

No interrupt pending

1

Interrupt pending

DAC12
ENC

Bit 1

DAC12 enable conversion. This bit enables the DAC12 module when
DAC12LSELx > 0. when DAC12LSELx = 0, DAC12ENC is ignored.
0

DAC12 disabled

1

DAC12 enabled

DAC12
GRP

Bit 0

DAC12 group. Groups DAC12_x with the next higher DAC12_x. Not used for
DAC12_1 on MSP430FG43x devices or on MSP430x42x0 devices.
0

Not grouped

1

Grouped

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