AMC7832IPAP datasheet(50/74 Pages) TI2

50 / 74 page

AMC7832

SLAS836 – MARCH 2014

www.ti.com

Table 34. Register name: Alarm Status 1 – Address: 0x71, Default: 0x00 (READ ONLY)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Alarm

0X71

7:4

Reserved

Reserved for factory use

0000

Status 1

ALARMIN-ALR

The ALARMIN-ALR is set to ‘1’ if the ALARMIN terminal is

enabled and set high.

THERM-ALR

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 the die

temperature. If LT is disabled, the THERM-ALR bit is always '0'.

The hysteresis of this alarm is 8°C.

LT-HIGH-ALR

LT-LOW-ALR = '1' when the temperature sensor is out of the

range defined by the upper threshold.

LT-LOW-ALR

LT-LOW-ALR = '1' when the temperature sensor is out of the

range defined by the lower threshold.

Table 35. Register name: General Status – Address: 0x72, Default: 0x00 (READ ONLY)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

General

0x72

7:3

Reserved

Reserved for factory use

All zeros

Status

Reserved

Reserved for factory use

GALR

Global alarm bit.

This bit is the OR function or all individual alarm bits of the status

DAVF

ADC Data available flag bit. Direct mode only. Always cleared in

Auto mode.

0: ADC conversion is in progress or ADC is in Auto mode

1: ADC conversions are complete and new data is available

8.5.10 Temperature And GPIO Data: Address 0x78 – 0x7A

Table 36. Register name: Temperature Data (low byte) – Address: 0x78, Default: 0x00 (READ ONLY)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Temp Data

0x78

7:0

TEMP-DATA(7:0)

Stores the temperature sensor reading in twos complement

0x00

(low)

format.

Table 37. Register name: Temperature Data (high byte) – Address: 0x79, Default: 0x00 (READ ONLY)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Temp Data

0x79

7:4

Reserved

Reserved for factory use.

All zeros

(high)

3:0

TEMP-

Stores the temperature sensor reading in twos complement

0x00

DATA(11:8)

format.

Table 38. Register name: GPIO – Address: 0x7A, Default: 0xFF (READ/WRITE)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

GPIO

0x7A

GPIO-7

For write operation the GPIO terminal operates as an output.

Writing a ‘1’ to the GPIO-n bit sets the GPIO-N terminal to high

GPIO-6

impedance. Writing a ‘0’ sets the GPIO-n terminal to logic low.

GPIO-5

For read operations the GPIO terminal operates as an input.

Read the GPIO-n bit to receive the status of the GPIO-n terminal.

GPIO-4

After power-on reset, or any forced hardware or software reset,

GPIO-3

the GPIO-n terminal has a 48-k

Ω input impedance to IOVDD.

GPIO-2

GPIO-1

GPIO-0

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