ISL68147

FN8880 Rev.2.00

Page 23 of 47

Jul 14, 2017

PMBus Use Guidelines

All commands can be read at any time.

Always disable the outputs when writing commands that change device settings. Exceptions to this rule are commands intended to be

written while the device is enabled, for example, OPERATION.

PMBus Data Formats

Direct (D)

The Direct data format is a 2-byte two’s complement binary integer.

Bit Field (BIT)

A breakdown of the Bit Field format is provided in “PMBus Command Detail” on page 24.

8Eh READ_TEMPERATURE_2

Reports TMON0 temperature measurement

Read

Direct

N/A

N/A

8Fh READ_TEMPERATURE_3

Reports TMON1 temperature measurement

Read

Direct

N/A

N/A

96h READ_POUT

Reports output power

Read

Direct

N/A

N/A

97h READ_PIN

Reports input power

Read

Direct

N/A

N/A

98h PMBUS_REVISION

Reports specific events

Read

Bit Field 33h

Revision 1.3

ADh IC_DEVICE_ID

Reports device identification information

Block Read Bit Field 49D22900h ISL68147

AEh IC_DEVICE_REV

Reports device revision information

Block Read Bit Field N/A

N/A

E7h APPLY_SETTINGS

Instructs device to apply PMBus configuration changes Write

Bit Field N/A

N/A

F2h RESTORE_CONFIG

Allows selection of configurations from NVM

Write

Bit Field N/A

N/A

CODE

COMMAND NAME

DESCRIPTION

TYPE

DATA

FORMAT

DEFAULT

VALUE

DEFAULT SETTING