adm1069ast-reel Analog Devices, Inc., adm1069ast-reel Datasheet - Page 21

• Manufacturer Part Number: adm1069ast-reel
• Description: Super Sequencer With Margining Control
• Manufacturer: Analog Devices, Inc.

FAULT AND STATUS REPORTING
The ADM1069 has a fault latch for recording faults. Two registers
are set aside for this purpose, FSTAT1 and FSTAT2. A single bit
is assigned to each input of the device, and a fault on that input
sets the relevant bit. The contents of the fault register can be
read out over the SMBus to determine which input(s) faulted.
The fault register can be enabled/disabled in each state. To latch
data from one state, simply ensure that the fault latch is disabled
in the following state. This ensures that only real faults are
captured and not, for example, undervoltage conditions that
may be present during a power-up or power-down sequence.
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The ADM1069 also has a number of status registers. These
include more detailed information, such as whether an
undervoltage or overvoltage fault is present on a particular
input faulted, as well as information on ADC limit faults. Note
that the data in the status registers is not latched in any way and,
therefore, is subject to change at any time.
See the
ADM1069 registers.
AN-721 Application Note
for full details about the
ADM1069