ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 39

• Manufacturer Part Number: ltc2978
• Description: Octal Pmbus Power Supply Monitor And Controller With Eeprom
• Manufacturer: Linear Technology Corporation

MFR_FAULTB00_RESPONSE, MFR_FAULTB01_
RESPONSE, MFR_FAULTB10_RESPONSE and MFR_
FAULTB11_RESPONSE
These manufacturer specific commands share the same
format and specify the response to assertions of the bidi-
rectional fault pins. For fault zone 0, MFR_FAULTB00_RE-
SPONSE determines how channels 0-3 respond when
the FAULTB00 pin is asserted, and MFR_FAULTB01_
RESPONSE determines how channels 0-3 respond
Data Contents—Fault Zone 0 Response Commands
Data Contents—Fault Zone 1 Response Commands
operaTion
BIT(S) SYMBOL
BIT(S) SYMBOL
b[7:4] Reserved
b[7:4] Reserved
b[3]
b[2]
b[1]
b[0]
b[3]
b[2]
b[1]
b[0]
Mfr_faultb10_response_chan7,
Mfr_faultb11_response_chan7
Mfr_faultb10_response_chan6,
Mfr_faultb11_response_chan6
Mfr_faultb10_response_chan5,
Mfr_faultb11_response_chan5
Mfr_faultb10_response_chan4,
Mfr_faultb11_response_chan4
Mfr_faultb00_response_chan3,
Mfr_faultb01_response_chan3
Mfr_faultb00_response_chan2,
Mfr_faultb01_response_chan2
Mfr_faultb00_response_chan1,
Mfr_faultb01_response_chan1
Mfr_faultb00_response_chan0,
Mfr_faultb01_response_chan0
OPERATION
Read only, always returns 0s.
Channel 3 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 2 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 1 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 0 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
OPERATION
Read only, always returns 0s.
Channel 7 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 6 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 5 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
Channel 4 response.
0: The channel continues operation without interruption.
1: The channel shuts down if the corresponding FAULTBzn pin is still asserted after 10µs. When the FAULTBzn
pin subsequently deasserts, the channel turns back on, honoring TON_DELAY and TON_RISE settings.
when the FAULTB01 pin is asserted. For fault zone 1,
MFR_FAULTB10_RESPONSE determines how channels
4-7 respond when the FAULTB10 pin is asserted, and
MFR_FAULTB11_RESPONSE determines how channels
4-7 respond when the FAULTB11 pin is asserted. If one
or more bits in the MFR_FAULTBzn_RESPONSE registers
are set, a FAULTBzn assertion will cause the ALERTB pin to
assert low and set the appropriate bit in the STATUS_MFR_
SPECIFIC register.
LTC2978

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