Linear Technology Analog Devices LTC3882-1, Datasheet

Page: 89 / 108

LTC3882-1
89
Rev A
For more information www.analog.com
STATUS_MFR_SPECIFIC
The STATUS_MFR_SPECIFIC command returns one byte with LTC3882-1-specific status information.
STATUS_MFR_SPECIFIC Message Contents:
BIT MEANING
7 Internal temperature fault (>160°C).
6 Internal temperature warning (>130°C).
5 EEPROM CRC error.
4 Internal PLL unlocked.
3 Fault log present.
2 Not supported (LTC3882-1 returns 0).
1 Output short cycled.
0 FAULT low.
If any supported bits are set, the MFR bit in the STATUS_WORD will be set and ALERT may be asserted. Any supported bit may be cleared by writing a 1 to
that bit position in STATUS_MFR_SPECIFIC, in lieu of a CLEAR_FAULTS command.
This command has one data byte.
MFR_PADS_LTC3882-1
The MFR_PADS_LTC3882-1 command provides status of the LTC3882-1 digital I/O and control pins, in addition to
general output voltage conditions.
MFR_PADS_LTC3882-1 Message Contents:
BIT MEANING
15 Channel 1 is a slave.
14 Channel 0 is a slave.
13:12 Not supported (LTC3882-1 returns 0).
11 ADC results for I
OUT
may be invalid.
10 SYNC output disabled externally.
9 Channel 1 POWER_GOOD (normally returns 1 if slave).
8 Channel 0 POWER_GOOD (normally returns 1 if slave).
7 LTC3882-1 forcing RUN1 low.
6 LTC3882-1 forcing RUN0 low.
5 RUN1 pin state.
4 RUN0 pin state.
3 LTC3882-1 forcing FAULT1 low.
2 LTC3882-1 forcing FAULT0 low.
1 FAULT1 pin state.
0 FAULT0 pin state.
This read-only command has two data bytes.
PMBus COMMAND DETAILS
(Status Reporting)