AN2511 datasheet(11/43 Pages) STMICROELECTRONICS

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AN2511

PMBus commands and source code

Doc ID 13286 Rev 2

11/43

PMBus commands and source code

3.1

PMBus commands

The Part II - command language document of PMBus™ Power System Management

Protocol Specification v1.0 provides the list of PMBus commands. This driver supports the

following list of commands. For each command a table is given.

Table 1.

Operation

Command name

OPERATION

Command code

01h

Description

The OPERATION command is used to turn the

unit on and off in conjunction with the input from

the CONTROL (OUTEN) pin.

SMBus transaction type

Read/ Write byte

Number of data bytes

Table 2.

ON_OFF_CONFIG

Command name

ON_OFF_CONFIG

Command code

02h

Description

The ON_OFF_CONFIG command configures the

combination of CONTROL (OUTEN) pin input

and serial bus commands needed to turn the unit

on and off.

SMBus transaction type

Read/ Write byte

Number of data bytes

Table 3.

CLEAR_FAULTS

Command name

CLEAR_FAULTS

Command code

03h

Description

CLEAR_FAULTS is used to clear any fault bits

that have been set.

SMBus transaction type

Send byte

Number of data bytes

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