ISL68222IRAZ datasheet(39/103 Pages) RENESAS

39 / 103 page

ISL68222, ISL68233

10. PMBus Command Detail

R16DS0036EU0100 Rev.1.00

Page 39 of 102

Oct.1.20

10.3 ON_OFF_CONFIG (02h)

Definition: Configures the interpretation and coordination of the OPERATION command and the ENABLE pin.

Access: Paged

Data Length in Bytes: 1

Data Format: Bit Field

Type: R/W

Default Value: 17h (ENABLE pin control, active high, immediate off)

10.4 CLEAR_FAULTS (03h)

Definition: Clears all fault status bits in all registers and releases the nPMALERT pin (if asserted) simultaneously.

If a fault condition still exists, the bit(s) reasserts immediately. This command does not restart a device if it is shut

down, it only clears the faults.

Access: Paged

Data Length in Bytes: 0

Data Format: N/A

Type: Write only

Command

ON_OFF_CONFIG (02h)

Format

Bit Field

Bit Position

Access

R/W

Function

See Following Table

Default Value

111

Bit Number

Purpose

Bit Value

Meaning

7:5

Not Supported

000

Not supported

4:2

Sets the source of

enable

0XX

Output enables any time power is present regardless of pin or

OPERATION command state.

101

Output enables from the enable pin only.

110

Output enables from the OPERATION command only.

111

Output enables from the enable pin AND the OPERATION

command. Both must be set to enable.

Polarity of ENABLE pin

Active low

Active high

ENABLE pin action

when commanding the

unit to turn off

Use the configured TOFF_DELAY and TOFF_FALL settings.

Turn off the output immediately (decay with PWM tri-state).

ISL68222IRAZ Datasheet(PDF) 39 Page - Renesas Technology Corp

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