ISL8270MEVAL1Z datasheet(39/56 Pages) RENESAS

39 / 56 page

ISL8270M

FN8635 Rev.4.00

Page 39 of 56

Aug 17, 2017

STATUS_CML (7Eh)

Definition: Returns one byte of information with a summary of any Communications, Logic and/or Memory errors.

Data Length in Bytes: 1

Data Format: BIT

Type: Read-only

Default Value: 00h

Units: N/A

STATUS_MFR_SPECIFIC (80h)

Definition: Returns one byte of information providing the status of the device's voltage monitoring and clock synchronization faults.

VDRV OV/UV warnings are set at ±10% of the VMON_FAULT commands.

Data Length in Bytes: 1

Data Format: BIT

Type: Read only

Default value: 00h

Units: N/A

READ_VIN (88h)

Definition: Returns the input voltage reading.

Data Length in Bytes: 2

Data Format: L11

Type: Read-only

Units: V

READ_VOUT (8Bh)

Definition: Returns the output voltage reading.

Data Length in Bytes: 2

Data Format: L16u

Type: Read-only

Units: V

BIT NUMBER

MEANING

Invalid or unsupported PMBus command was received.

The PMBus command was sent with invalid or unsupported data.

packet error was detected in the PMBus command.

4:2

Not Used.

A PMBus command tried to write to a read-only or protected command, or a communication fault other than the ones listed in

this table has occurred.

0Not Used.

BIT NUMBER

FIELD NAME

MEANING

7:6

Reserved

VMON UV Warning

The voltage on the VMON pin has dropped below the level 10% above

MFR_VMON_UV_FAULT_LIMIT.

VMON OV Warning

The voltage on the VMON pin has risen above the level 10% below

MFR_VMON_OV_FAULT_LIMIT.

External Switching Period Fault

Loss of external clock synchronization has occurred.

Reserved

VMON UV Fault

The voltage on the VMON pin has dropped below the level set by

MFR_VMON_UV_FAULT.

VMON OV Fault

The voltage on the VMON pin has risen above the level set by

MFR_VMON_OV_FAULT.

ISL8270MEVAL1Z Datasheet(PDF) 39 Page - Renesas Technology Corp

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