LTM4677 datasheet(32/110 Pages) AD

32 / 110 page

LTC3888-1

Rev. 0

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OPERATION

Table 1. LTC3888-1 Fault Log Contents

RECORD TYPE

STARTING

BYTE

ENDING

BYTE

COMMENTS

Header Information

See Table 2.

Fault Event Record

Fault may have occurred anywhere during this event record. See byte 4 of Table 2 and all of

Table 3 and Table 4.

Event Record N-1

Last complete cyclical data read before the fault was detected.

Event Record N-2

Older data records…

Event Record N-3

106

Event Record N-4

107

126

Event Record N-5

127

146

Oldest recorded data.

Table 2. Fault Log Header Information

RECORD

BITS

FORMAT

BLOCK

BYTE

COUNT DETAILS

Fault Log Preface

[7:0]

ASC

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.

[7:0]

[15:8]

Reg

[7:0]

Fault Source

[7:0]

Reg

Refer to Table 3.

MFR_REAL_TIME

[7:0]

Reg

48 bit share-clock counter value when fault occurred (200µs resolution).

[15:8]

[23:16]

[31:24]

[39:32]

[47:40]

MFR_VOUT_PEAK (PAGE 0)

[15:8]

L16

Peak READ_VOUT on Channel 0 since last power-on or CLEAR_PEAKS command.

[7:0]

MFR_VOUT_PEAK (PAGE 1)

[15:8]

L16

Peak READ_VOUT on Channel 1 since last power-on or CLEAR_PEAKS command.

[7:0]

MFR_IOUT_PEAK (PAGE 0)

[15:8]

L11

Peak READ_IOUT on Channel 0 since last power-on or CLEAR_PEAKS command.

[7:0]

MFR_IOUT_PEAK (PAGE 1)

[15:8]

L11

Peak READ_IOUT on Channel 1 since last power-on or CLEAR_PEAKS command.

[7:0]

MFR_VIN_PEAK

[15:8]

L11

Peak READ_VIN since last power-on or CLEAR_PEAKS command.

[7:0]

READ_TEMPERATURE1 (PAGE 0)

[15:8]

L11

External temperature sensor 0 during last event.

[7:0]

READ_TEMPERATURE1 (PAGE 1)

[15:8]

L11

External temperature sensor 1 during last event.

[7:0]

READ_TEMPERATURE2

[15:8]

L11

Internal temperature sensor during last event.

[7:0]

LTM4677 Datasheet(PDF) 32 Page - Analog Devices

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