Datasheet

LTC3880/LTC3880-1
103
3880fc
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Table 11. 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 LIN 11 = PMBus = Rev 1.1, Part 2, section 7.1
LIN 16 = PMBus Rev 1.1, Part 2, section 8. Mantissa portion only
BYTE = 8 bits interpreted per definition of this command
DATA BITS
DATA
FORMAT BYTE NUM
BLOCK READ COMMAND
Block Length BYTE 147 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
HEADER INFORMATION
Position_Fault BYTE 0 Indicates the fault that caused the fault log to be activated.
MFR_REAL_TIME [7:0} BYTE 1 48-bit binary counter. The value is the time since the last reset in 200µs
increments.
[15:8} BYTE 2
[23:16] BYTE 3
[31:24] BYTE 4
[39:32] BYTE 5
[47:40] BYTE 6
MFR_VOUT_PEAK (PAGE 0) [15:8] LIN 16 7 Peak READ_VOUT page 0 since last MFR_CLEAR_PEAKS.
[7:0] LIN 16 8
MFR_VOUT_PEAK (PAGE 1) [15:8] LIN 16 9 Peak READ_VOUT page 1 since last MFR_CLEAR_PEAKS.
[7:0] LIN 16 10
MFR_IOUT_PEAK (PAGE 0) [15:8] LIN 11 11 Peak READ_IOUT page 0 since last MFR_CLEAR_PEAKS.
[7:0] LIN 11 12
MFR_IOUT_PEAK (PAGE 1) [15:8] LIN 11 13 Peak READ_IOUT page 1 since last MFR_CLEAR_PEAKS.
[7:0] LIN 11 14
MFR_VIN_PEAK [15:8] LIN 11 15 Peak READ_VIN since last MFR_CLEAR_PEAKS.
[7:0] LIN 11 16
READ_TEMPERATURE_1 (PAGE 0) [15:8] LIN 11 17 External temperature sensor 0 during last event
[7:0] LIN 11 18
READ_TEMPERATURE_1 (PAGE 1) [15:8] LIN 11 19 External temperature sensor 1 during last event
[7:0] LIN 11 20
READ_TEMPERATURE_2 [15:8] LIN 11 21 Internal temperature sensor during last event
[7:0] LIN 11 22
MFR_TEMPERATURE1_PEAK (PAGE 0) [15:8] LIN 11 23 Peak READ_TEMPERATURE_1 page 0 since MFR_CLEAR_PEAKS.
[7:0] LIN 11 24
MFR_TEMPERATURE1_PEAK (PAGE 1) [15:8] LIN 11 25 Peak READ_TEMPERATURE_1 page 1 since MFR_CLEAR_PEAKS.
[7:0] LIN 11 26
PMBus COMMAND DETAILS