LM5064PMHSLASHNOPB datasheet(37/64 Pages) TI2

37 / 64 page

LM5064

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SNVS718E – JUNE 2011 – REVISED FEBRUARY 2013

STATUS_CML (7Eh)

The STATUS_CML is a standard PMBus command that returns the value of a number of flags related to

communication faults. Accesses to this command should use the PMBus read byte protocol. To clear bits in this

Table 14. STATUS_CML Definitions

Bit

NAME

Default

Invalid or unsupported command received

Invalid or unsupported data received

Packet Error Check failed

Not supported, always 0

Miscellaneous communications fault has occurred

Not supported, always 0

STATUS_MFR_SPECIFIC (80h)

The STATUS_MFR_SPECIFIC command is a standard PMBus command that contains manufacturer specific

status information. Accesses to this command should use the PMBus read byte protocol. To clear bits in this

Table 15. STATUS_MFR_SPECIFIC Definitions

Bit

Meaning

Default

Circuit breaker fault

Ext. MOSFET shorted fault

Not Supported, Always 0

Defaults loaded

Not supported: Always 0

READ_VIN (88h)

The READ_VIN command is a standard PMBus command that returns the 12-bit measured value of the input

voltage. Reading this register should use the coefficients shown in Table 41. Accesses to this command should

use the PMBus read word protocol. This value is also used internally for the VIN Over and Under-Voltage

Warning detection.

Table 16. READ_VIN Register

Value

Meaning

Default

0h – 0FFFh

Measured value for VIN

0000h

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