REV. 0

ADM1022

–18–

Table VIII. 0x43 Interrupt Mask Register. Power-On Default <7:0> = 00h

Bit

Name

Read/Write

Description

0

Int. Temp Error

Read Only

A one disables the corresponding interrupt status bit for the

INT output.

1

Ext. Temp2 Error

Read Only

A one disables the corresponding interrupt status bit for the

INT output.

2

Diode 2 Fault

Read Only

A one disables the corresponding interrupt status bit for the

INT output.

3

Reserved

Read Only

Undefined.

4

GPI Input

Read/Write

A one disables the corresponding interrupt status bit for the

INT output.

5

Ext. Temp1 Error

Read/Write

A one disables the corresponding interrupt status bit for the

INT output.

6

THERM Input

Read/Write

A one disables the corresponding interrupt status bit for the

INT output.

7

Diode 1 Fault

Read/Write

A one disables the corresponding interrupt status bit for the

INT output.

Table IX. Register 0x4C Interrupt Status Register Mirror. Power-On Default <7:0> = 00h

Bit

Name

Read/Write

Description

0

Int. Temp Error

Read Only

A one indicates that one of the internal temperature sensor limits has been

exceeded.

1

Ext. Temp2 Error

Read Only

A one indicates that one of the limits for the second external temperature

sensor has been exceeded.

2

Diode 2 Fault

Read Only

A one indicates either a short- or open-circuit fault on remote sensor diode 2.

3

Reserved

Read Only

Undefined

4

GPI Input

Read Only

A “1” indicates that the GPI pin is asserted. The polarity of the GPI pin is

determined by GPI Invert (Bit 6) in the Configuration Register. For example,

if GPI Invert is cleared, this bit will be “1” when the GPI pin is high (“1”);

this bit will be “0” when the GPI pin is low (“0.”) If GPI Invert is set, this bit

will be “1” when the GPI pin is low (“0”); this bit will be “0” when the GPI

pin is high (“1”). Note that the state of GPI is not latched; this bit simply

reflects the state or inverted state of the GPI pin. Note: if this bit is “1”

reading this register will NOT clear it to “0.”

5

Ext. Temp1 Error

Read Only

A one indicates that one of the limits for the first external temperature sensor

has been exceeded.

6

THERM Input

Read Only

A one indicates that the thermal overload (

THERM) line has been asserted

externally.

7

Diode 1 Fault

Read Only

A one indicates either a short- or open-circuit fault on remote sensor diode 1.