AMC7812SPAPR Datasheet, PDF (70/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013
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Table 22. Status Register
BIT
NAME
DEFAULT R/W
DESCRIPTION
15
—
0
R Reserved. Writing to this bit causes no change. Reading this bit returns '0'.
CH0-ALR = '1' when single-ended channel 0 or differential input pair (CH0+/CH1–) is out of
14
CH0-ALR
0
R the range defined by the corresponding threshold registers.
CH0-ALR = '0' when the analog input is not out of the specified range.
CH1-ALR = '1' when single-ended channel 1 is out of the range defined by the
13
CH1-ALR
0
R corresponding threshold registers.
CH1-ALR = '0' when the analog input is not out of the specified range.
CH2-ALR = '1' when single-ended channel 2 or differential input pair (CH2+/CH3–) is out of
12
CH2-ALR
0
R the range defined by the corresponding threshold registers.
CH2-ALR = '0' when the analog input is not out of the specified range.
CH3-ALR = '1' when single-ended channel 3 is out of the range defined by the
11
CH3-ALR
0
R corresponding threshold registers.
CH3-ALR = '0' when the analog input is not out of the specified range.
10 LT-Low-ALR
0
Local temperature under-range flag.
R
LT-Low-ALR = '1' when the local temperature is less than the low-bound threshold.
LT-Low-ALR = '0' when the local temperature is not less than the range.
This bit is only checked when LT is enabled (EN-LT = '1'); it is ignored when EN-LT = '0'.
9 LT-High-ALR
0
Local temperature over-range flag.
R
LT-High-ALR = '1' when the local temperature is greater than the high-bound threshold.
LT-High-ALR = '0' when the local temperature is not greater than the range.
This bit is only checked when LT is enabled (EN-LT = '1'); it is ignored when EN-LT = '0'.
8 D1-Low-ALR
0
Remote temperature reading of D1when less than the range flag.
R
D1-Low-ALR = '1' when the local temperature is less than the low-bound threshold.
D1-Low-ALR = '0' when the local temperature is not less than the range.
This bit is only checked when D1 is enabled (EN-D1 = '1'); it is ignored when EN-D1 = '0'.
7 D1-High -ALR
0
Remote temperature reading of D1 when greater than the range flag.
R
D1-High-ALR = '1' when the local temperature is greater than the high-bound threshold.
D1-High-ALR = '0' when the local temperature is not greater than the range.
This bit is only checked when D1 is enabled (EN-D1 = '1'); it is ignored when EN-D1 = '0'.
6 D2-Low-ALR
0
Remote temperature reading of D2 when less than the range flag.
R
D2-Low-ALR = '1' when the local temperature is less than the low-bound threshold.
D2-Low-ALR = '0' when the local temperature is not less than the range.
This bit is only checked when D2 is enabled (EN-D2 = '1'); it is ignored when EN-D2 = '0'.
5 D2-High -ALR
0
Remote temperature reading of D2 when greater than the range flag.
R
D2-High-ALR = '1' when the local temperature is greater than the high-bound threshold.
D2-High-ALR = '0' when the local temperature is not greater than the range.
This bit is only checked when D2 is enabled (EN-D2 = '1'); it is ignored when EN-D2 = '0'.
4 D1-FAIL-ALR
0
Remote sensor D1 failure flag.
R
D1-FAIL-ALR = '1' when the sensor is an open-circuit or short-circuit.
D1-FAIL-ALR = '0' when the sensor is in a normal condition.
This bit is only checked when D1 is enabled (EN-D1 = '1'); it is ignored when EN-D1 = '0'.
3 D2-FAIL-ALR
0
Remote sensor D2 failure flag.
R
D2-FAIL-ALR = '1' when the sensor is an open-circuit or short-circuit.
D2-FAIL-ALR = '0' when the sensor is in a normal condition.
This bit is only checked when D2 is enabled (EN-D2 = '1'); it is ignored when EN-D2 = '0'.
2 THERM-ALR
0
Thermal alarm flag. When the die temperature is equal to or greater than +150°C, the bit is
R
set ('1') and the THERM-ALR flag activates. The on-chip temperature sensor (LT) monitors
the die temperature. If LT is disabled, the THERM-ALR bit is always '0'. The hysteresis of
this alarm is 8°C.
1
—
0
R Reserved. Writing to this bit causes no change. Reading this bit returns '0'.
0
—
0
R Reserved. Writing to this bit causes no change. Reading this bit returns '0'.
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