Fault Sharing Response; Scratchpad - Analog Devices Linear LTM 4700 User Manual

PMBus COMMAND DETAILS

Fault Sharing Response

COMMAND NAME CMD CODE DESCRIPTION
MFR_FAULT_RESPONSE 0xD5
MFR_FAULT_RESPONSE
The MFR_FAULT_RESPONSE command instructs the device on what action to take in response to the FAULTn pin
being pulled low by an external source.
Supported Values:
VALUE MEANING
0xC0 FAULT_INHIBIT The LTM4700 will three-state the output in response to the FAULT pin pulled low.
0x00 FAULT_IGNORE The LTM4700 continues operation without interruption.
The device also:
• Sets the MFR Bit in the STATUS_WORD.
• Sets Bit 0 in the STATUS_MFR_SPECIFIC Command to Indicate FAULTn Is Being Pulled Low
• Notifies the Host by Asserting ALERT, Unless Masked
This command has one data byte.

SCRATCHPAD

COMMAND NAME CMD CODE DESCRIPTION
USER_DATA_00 0xB0
USER_DATA_01 0xB1
USER_DATA_02 0xB2
USER_DATA_03 0xB3
USER_DATA_04 0xB4
Action to be taken by the device when the
FAULT pin is asserted low.
OEM reserved. Typically used for part
serialization.
Manufacturer reserved for LTpowerPlay.
OEM reserved. Typically used for part
serialization.
A NVM word available for the user.
A NVM word available for the user.
For more information
TYPE PAGED FORMAT
R/W Byte Y
TYPE PAGED FORMAT
R/W Word N
R/W Word Y
R/W Word N
R/W Word Y
R/W Word N
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LTM4700
DATA DEFAULT
UNITS NVM VALUE
Reg Y 0xC0
DATA DEFAULT
UNITS NVM VALUE
Reg Y
Reg Y
Reg Y
Reg Y 0x0000
Reg Y 0x0000
103
NA
NA
NA
Rev. B