ADM1029ARQZ-R7 datasheet(29/50 Pages) ONSEMI

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ADM1029

Table X. Register Map

Address

Name

Default Value

Description

Status Register

00h

Contains the status of various fault conditions.

Config Register

0000 0000

Configures the operation of the device.

Fan Supported By Controller

03h

Contains the number of fans the device can support.

Fans Supported In System

0000 00?1

Contains the number of fans actually supported by the device

in the application.

GPIOs Supported By Controller

7Fh

Contains the number of GPIO pins the device can support.

GPIO Present/AIN

0????111

Used to configure GPIO pins as GPIO or as their alternate

analog input function.

Temp Devices Installed

0000 0??1

Contains number of temperature sensors installed.

Set Fan x Alarm Speed

00h

Writing to appropriate bit(s) makes fan(s) run at alarm speed.

Set Fan x Hot-Plug Speed

00h

Writing to appropriate bit(s) makes fan(s) run at hot-plug speed.

Set Fan x Full Speed

00h

Writing to appropriate bit(s) makes fan(s) run at full speed.

S/W RESET

00h

Writing A6h to this register causes a software reset.

Fan Spin-Up

03h

Configures fan spin-up time.

Manufacturer’s ID

41h

This register contains the manufacturer’s ID code for the device.

Major/Minor Revision

00h

Contains the manufacturer’s code for major and minor revi-

sions to the device in two nibbles.

Manufacturer’s Test Register

00h

This register is used by the manufacturer for test purposes. It

should not be read from or written to in normal operation.

Fan 1 Status

0000 0?0?

Contains status information for FAN 1.

Fan 2 Status

0000 0?0?

Contains status information for FAN 2.

Fan 1 Fault Action

BFh

Sets operation of INT, CFAULT, etc., for FAN 1 fault.

Fan 2 Fault Action

BFh

Sets operation of INT, CFAULT, etc., for FAN 2 fault.

Fan 1 Event Mask

FFh

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to a fault or hot-plug event on FAN 1.

Fan 2 Event Mask

FFh

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to a fault or hot-plug event on FAN 2.

GPIO0 Behavior

00h

Configures the operation of GPIO0.

GPIO1 Behavior

00h

Configures the operation of GPIO1.

GPIO2 Behavior

00h

Configures the operation of GPIO2.

GPIO3 Behavior

00h

Configures the operation of GPIO3.

GPIO4 Behavior

00h

Configures the operation of GPIO4.

GPIO5 Behavior

00h

Configures the operation of GPIO5.

GPIO6 Behavior

00h

Configures the operation of GPIO6.

Local Temperature Offset

00h

Offset register for local temperature measurement. The value

in this register is added to the local temperature value to reduce

system offset effects.

Remote 1 Temperature Offset

00h

Offset register for first remote temperature channel (D1). The

value in this register is added to the temperature value to reduce

system offset effects.

Remote 2 Temperature Offset

00h

Offset register for second remote temperature channel (D2).

The value in this register is added to the temperature value to

reduce system offset effects.

GPIO0 Event Mask

00h

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to GPIO0 being asserted.

GPIO1 Event Mask

00h

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to GPIO1 being asserted.

GPIO2 Event Mask

00h

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to GPIO2 being asserted.

GPIO3 Event Mask

00h

Enables/disables FAN 1 and/or FAN 2 alarm/hot-plug speed

in response to GPIO3 being asserted.

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