Analog Devices Linear ADI Power LTM4681 Manual page 126

LTM4681
PMBus COMMAND DETAILS
Table 23. Fault Logging
This table outlines the format of the block data from a read block data of the MFR_FAULT_LOG command.
Data Format Definitions
DATA
Block Length
HEADER INFORMATION
Fault Log Preface
Fault Source
MFR_REAL_TIME
MFR_VOUT_PEAK (PAGE 0)
MFR_VOUT_PEAK (PAGE 1)
MFR_IOUT_PEAK (PAGE 0)
MFR_IOUT_PEAK (PAGE 1)
MFR_VIN_PEAK
READ_TEMPERATURE1 (PAGE 0)
READ_TEMPERATURE1 (PAGE 1)
READ_TEMPERATURE2
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DATA
BITS FORMAT BYTE NUM BLOCK READ COMMAND
BYTE 147
[7:0] ASC 0
[7:0] 1
[15:8] Reg 2
[7:0] 3
[7:0] Reg 4
[7:0] Reg 5
[15:8] 6
[23:16] 7
[31:24] 8
[39:32] 9
[47:40] 10
[15:8] L16 11
[7:0] 12
[15:8] L16 13
[7:0] 14
[15:8] L11 15
[7:0] 16
[15:8] L11 17
[7:0] 18
[15:8] L11 19
[7:0] 20
[15:8] L11 21
[7:0] 22
[15:8] L11 23
[7:0] 24
[15:8] L11 25
[7:0] 26
For more information
LIN 11 = PMBus = Rev 1.2, Part 2, section 7.1
LIN 16 = PMBus Rev 1.2, Part 2, section 8. Mantissa portion only
BYTE = 8 bits interpreted per definition of this command
The MFR_FAULT_LOG command is a fixed length of 147 bytes
The block length will be zero if a data log event has not been captured
Returns LTxx beginning at byte 0 if a partial or complete fault log exists.
Word xx is a factory identifier that may vary part to part.
Refer to Table 19.
48 bit share-clock counter value when fault occurred (200µs resolution).
Peak READ_VOUT on Channel 0 since last power-on or CLEAR_PEAKS
command.
Peak READ_VOUT on Channel 1 since last power-on or CLEAR_PEAKS
command.
Peak READ_IOUT on Channel 0 since last power-on or CLEAR_PEAKS
command.
Peak READ_IOUT on Channel 1 since last power-on or CLEAR_PEAKS
command.
Peak READ_VIN since last power-on or CLEAR_PEAKS command.
Power stage temperature sensor 0 during last event.
Power stage temperature sensor 1 during last event.
LTM4681 die temperature sensor during last event.
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Rev. A