LT7184S datasheet(44/52 Pages) AD

44 / 52 page

Data Sheet

LT7184S

analog.com

Rev. 0

44 of 52

PMbus COMMAND SUMMARY

PMbus/I2C Serial Interface Summary

This data sheet provides an overview of some key features available via the LT7184S serial interface, but it is not

exhaustive. Refer to the companion document LT7184S PMBus/I2C Reference Manual, which provides a detailed

description of the available digital functionality. See Table 16 for supported PMBus commands. The data format

abbreviations are described at the end of this command summary. Floating point values listed in the DEFAULT

VALUE column are half-precision IEEE floating point numbers.

Paged commands control and report telemetry for the selected channel. Refer to the PMBUS Specification Revision

1.3.1 for more information.

Table 16. PMBus Command Summary

COMMAND

CODE

DESCRIPTION

TYPE

PAGED

FORMAT

UNITS

NVM

DEFAULT

PAGE

0x00

Provides integration with

multiple PMBus devices.

R/W

Byte

0x00

OPERATION

0x01

Operating mode control.

On/Off, margin high, and

margin low.

R/W

Byte

0x80

ON_OFF_CONFIG

0x02

RUN pin and PMBus on/off

command configuration.

R/W

Byte

0x1E

CLEAR_FAULTS

0x03

Clear any fault bits that have

been set.

Send

Byte

PAGE_PLUS_WRITE

0x05

Write a command directly to

a specified page.

W Block

PAGE_PLUS_READ

0x06

Read a command directly

from a specified page.

Block

R/W

ZONE_CONFIG

0x07

Assigns the current page to

the specified zone number

for ZONE_WRITE operations.

W Word

0xFEFE

ZONE_ACTIVE

0x08

Selects the active zone for

ZONE_WRITE operations.

W Word

0xFEFE

WRITE_PROTECT

0x10

Level of protection provided

by the device against

accidental changes.

R/W

Byte

0x00

STORE_USER_ALL

0x15

Store user operating

memory to EEPROM.

Send

Byte

RESTORE_USER_ALL

0x16

Restore user operating

memory from EEPROM.

Send

Byte

CAPABILITY

0x19

Summary of PMBus optional

communication protocols

supported by this device.

R Byte

0xD8

QUERY

0x1A

Asks if a given command is

supported and what data

formats are supported.

Block

R/W

SMBALERT_MASK

0x1B

Asks if a given command is

supported and what data

formats are supported.

Block

R/W

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