AMC7812SPAPR datasheet(70/92 Pages) TI

70 / 92 page

AMC7812

SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013

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Table 22. Status Register

BIT

NAME

DEFAULT

R/W

DESCRIPTION

—

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

CH0-ALR

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

CH1-ALR

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

CH2-ALR

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

CH3-ALR

corresponding threshold registers.

CH3-ALR = '0' when the analog input is not out of the specified range.

Local temperature under-range flag.

LT-Low-ALR = '1' when the local temperature is less than the low-bound threshold.

LT-Low-ALR

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'.

Local temperature over-range flag.

LT-High-ALR = '1' when the local temperature is greater than the high-bound threshold.

LT-High-ALR

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'.

Remote temperature reading of D1when less than the range flag.

D1-Low-ALR = '1' when the local temperature is less than the low-bound threshold.

D1-Low-ALR

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'.

Remote temperature reading of D1 when greater than the range flag.

D1-High-ALR = '1' when the local temperature is greater than the high-bound threshold.

D1-High -ALR

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'.

Remote temperature reading of D2 when less than the range flag.

D2-Low-ALR = '1' when the local temperature is less than the low-bound threshold.

D2-Low-ALR

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'.

Remote temperature reading of D2 when greater than the range flag.

D2-High-ALR = '1' when the local temperature is greater than the high-bound threshold.

D2-High -ALR

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'.

Remote sensor D1 failure flag.

D1-FAIL-ALR = '1' when the sensor is an open-circuit or short-circuit.

D1-FAIL-ALR

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'.

Remote sensor D2 failure flag.

D2-FAIL-ALR = '1' when the sensor is an open-circuit or short-circuit.

D2-FAIL-ALR

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'.

Thermal alarm flag. When the die temperature is equal to or greater than +150°C, the bit is

set ('1') and the THERM-ALR flag activates. The on-chip temperature sensor (LT) monitors

THERM-ALR

the die temperature. If LT is disabled, the THERM-ALR bit is always '0'. The hysteresis of

this alarm is 8°C.

—

Reserved. Writing to this bit causes no change. Reading this bit returns '0'.

—

Reserved. Writing to this bit causes no change. Reading this bit returns '0'.

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