ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 33
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ltc2978
Manufacturer Part Number
ltc2978
Description
Octal Pmbus Power Supply Monitor And Controller With Eeprom
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC2978.pdf
(64 pages)
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STATUS_MFR_SPECIFIC
The STATUS_MFR_SPECIFIC command returns manufac-
turer specific status flags. Bits marked FAULT = No are
intended to support polled handshaking; these are not
latched nor do they assert ALERTB. Bits marked Channel
= All can be read from any page. Bits marked FAULT = Yes
assert ALERTB low and are cleared by CLEAR_FAULTS.
STATUS_MFR_SPECIFIC Data Contents
operaTion
BIT(S) SYMBOL
b[7]
b[6]
b[5]
b[4]
b[3]
b[2]
b[1]
b[0]
Status_mfr_discharge
Status_mfr_fault1_in
Status_mfr_fault0_in
Status_mfr_servo_target_reached
Status_mfr_dac_connected
Status_mfr_dac_saturated
Status_mfr_vinen_faulted_off
Status_mfr_watchdog_fault
OPERATION
1 = A V
0 = No V
This channel attempted to turn on while the FAULTBz1 pin was asserted low,
or this channel has shut down at least once in response to a FAULTBz1 pin
asserting low since the last CONTROLn pin toggle, OPERATION command
ON/OFF cycle or CLEAR_FAULTS command.
This channel attempted to turn on while the FAULTBz0 pin was asserted low,
or this channel has shut down at least once in response to a FAULTBz0 pin
asserting low since the last CONTROLn pin toggle, OPERATION command
ON/OFF cycle or CLEAR_FAULTS command.
Servo target has been reached.
DAC is connected and driving V
A previous servo operation terminated with maximum or minimum DAC
value.
V
1 = A watchdog fault has occurred.
0 = No watchdog fault has occurred.
IN_EN
has been deasserted due to a VOUT fault.
OUT
OUT
discharge fault occurred while attempting to enter the ON state
discharge fault has occurred
DACP
pin.
Current Page
Current Page
Current Page
Current Page
Current Page
Current Page
CHANNEL
All
All
LTC2978
FAULT
Yes
Yes
Yes
Yes
Yes
No
No
No
2978fa