MSC1200_14 Datasheet, PDF (68/93 Pages) Texas Instruments – MSC1200 and MSC1201: 24 Bits No Missing Codes 22 Bits Effective Resolution At 10Hz

MSC1200
MSC1201
MSC1202
SBAS317E − APRIL 2004 − REVISED MAY 2006
www.ti.com
ADC Gain Calibration High Byte (GCH)
7
6
5
4
3
2
1
0
Reset Value
SFR D6h
MSB
5Fh
All MSC120x devices support 24-bit calibration values.
GCH
bits 7−0
ADC Gain Calibration High Byte. This is the high byte of the 24-bit word that contains the ADC gain
calibration. This value is written by the device after performing a calibration. This register is read/writable, so it can
be used for setting calibration values independent of the hardware-generated calibration values.
ADC Input Multiplexer (ADMUX)
SFR D7h
7
INP3
6
INP2
5
INP1
4
INP0
3
INN3
2
INN2
1
INN1
0
INN0
Reset Value
01h
INP3−0
bits 7−4
Input Multiplexer Positive Input. This selects the positive signal input.
INP3
0
0
0
0
0
0
0
0
1
1
INP2
0
0
0
0
1
1
1
1
0
1
INP1
0
0
1
1
0
0
1
1
0
1
INP0
0
1
0
1
0
1
0
1
0
1
POSITIVE INPUT
AIN0 (default)
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6 (MSC1200 only; for the MSC1201/02, this pin is internally tied to REFIN−)
AIN7 (MSC1200 only; for the MSC1201/02, this pin is internally tied to REFIN−)
AINCOM
Temperature Sensor (requires ADMUX = FFh)
INN3−0
bits 3−0
Input Multiplexer Negative Input. This selects the negative signal input.
INN3
0
0
0
0
0
0
0
0
1
1
INN2
0
0
0
0
1
1
1
1
0
1
INN1
0
0
1
1
0
0
1
1
0
1
INN0
0
1
0
1
0
1
0
1
0
1
NEGATIVE INPUT
AIN0
AIN1 (default)
AIN2
AIN3
AIN4
AIN5
AIN6 (MSC1200 Only)
AIN7 (MSC1200 Only)
AINCOM
Temperature Sensor (requires ADMUX = FFh)
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