Microchip Technology ADM00639, User Manual, Page: 24 / 43

UCS2112 Dual USB Port Power Evaluation Board User’s Guide
DS50002420A-page 24

2015 Microchip Technology Inc.
4.2 INTERFACE DESCRIPTION AND OPERATION
4.2.1 Automated Current Sampling Start/Stop Buttons
On the top of the window there are two buttons that start and stop the automated
current sampling (see
Figure 4-2 ). When the Automated Current Sampling is on, the
GUI reads the Current Measurement and the Total Accumulated Charge registers
periodically for both ports (see
Figure 4-4 ). It also reads the status registers regularly
and updates the Status Indicators on the right side panel.
FIGURE 4-2: Automated Current Sampling Start/Stop Buttons.
4.2.2 Status Indicators
The status indicators show the state of the bits from the Interrupt Status and General
Status registers. They are grey if the corresponding bits are
“0”
and green/red if the
corresponding bits are set. The green color indicates a change in the status of the
charging port and the red color indicates a fault condition (see
Figure 4-3 for color
assignment on each condition).
Some of the bits are cleared when read and their indication is maintained longer, to be
observable by the user.
The status indicators can be updated in two ways: automatically, when the Automated
Current Sampling is active, or manually, by pressing the
Check Status button, when
the Automated Current Sampling is disabled.
FIGURE 4-3: Status Indicators.
Automated Current
Sampling button
Check status when
current sampling is
disabled
These indicators turn to green
when changes occur
in the charging port’s status
(bits are
“1”
)
When grey = bits are
“0”
These indicators turn red
when a fault condition
occurs (bits are
“1”
)
When grey = bits are
“0”