Software Description
2014 Microchip Technology Inc.
DS50002300A-page 27
4.2.2
Pin State and Attach Status Panel
The Pin State & Attach Status section on the right side of the GUI, shown in
provides a quick graphical status reference and allows physical control pin override.
This section is always displayed.
FIGURE 4-4:
Pin State and Attach Status.
4.2.3
Pin State & Attach Status Panel
4.2.3.1
ALERT# AND A_DET# INDICATORS
When the ALERT# and A_DET# indicators are green, the signals at the device’s
respective pin are low and the corresponding condition has occurred (alert or device
attached, respectively). When the indicators are dark, the pin states are high.
4.2.3.2
PIN INDICATORS
The pin indicators (SEL, PWR_EN, M1, M2 and EM_EN) shown in
are
green if the signal on the corresponding pin on the UCS81003 device is high, and dark
if the signal is low. If the “Pin Ignore” box is checked (see
), these indicators will reflect the GUI overrides for these pins.
4.2.3.3
PIN OVERRIDE
For evaluation convenience, the GUI can override the setting of the following pins on
the UCS81003 device: PWR_EN, M1, M2 and EM_EN. Check the “Pin Ignore” box
(see
) to enable pin override. Then, check in the corresponding pin box to set
the value high.
ALERT#
Pin
Indicators
A_DET#
Pin Override
Check Boxes
and
Indicators
Note 1:
Pin override does not affect the actual signal on the pin. It only affects the
register values.
2:
The SEL pin is only read once by the UCS81003 at power up, so there is
no pin override for it. To close the port power switch, the PWR_EN state
must match the SEL state (e.g., SEL = high and PWR_EN = high).
