GUI Description
2018 Microchip Technology Inc.
DS50002815A-page 24
FIGURE 4-8:
MIC23656 I
2
C Diagnostic Area.
The MIC23656 I
2
C Diagnostic area resumes the information contained in the STATUS
register. The STATUS register contains latched (Flag) or non-latched (Status) bits. Flag
bits are set when the corresponding Fault condition occurs and do not return to zero
once the Fault condition ceases. If such a fault occurs, the user can clear the faults by
toggling the enable function or power cycling the device. Status bits are set when the
corresponding Fault condition has occurred, and return to zero automatically once the
Fault condition has ceased. This information is refreshed once every two seconds.
Because of this refresh traffic, when using a logic analyzer it is more difficult to
synchronize the exact moment of a certain command. In order to simplify this, an
auxiliary trigger signal is provided on pin GP2 of the MCP2221. This signal is triggered
for each user Read/Write command.
TABLE 4-4:
MIC23656 I
2
C DIAGNOSTIC AREA ITEMS
Panel
Items
Description
Status
Power Good
This box is checked if the output voltage reaches
91% of its set value.
Latched Off
This box is checked if the regulator output is latched
off, due to four consecutive hiccup events or thermal
shutdown.
OverTemp Shutdown
This box is checked if the MIC23656 enters Thermal
Shutdown (Typ. T
J
= +165°C)
Current Limit
This box is checked if the high-side sensed current
reaches the value set in the “Current Limit” spin box.
Soft Start Done
This box is checked after successful regulator soft
start ramp.
Boot Up Error
This box is checked if an error occurs while loading
the trim and configuration data into the digital core. At
successful start-up, this box remains unchecked
(clear).
Buck Enabled
This box indicates the internal state of the regulator,
determined by enable commands (via EN pin or I
2
C)
OverTemp Warning
This box is checked if the MIC23656 junction
temperature e118°C. This does not affect
the normal operation of the device.
TABLE 4-5:
STATUS BAR ITEMS
Item
Description
Status Label
The status label shows if there is any device connected to the board. Refer to
for a list of
possible labels.
Progress Bar
This bar shows the level of completion for a given command.
