The Power Debugger includes a standard CDC
virtual COM port interface. The CDC header is part of the 20-pin DGI header, although
logically it is a separate interface.
Important: The arrows on the
silkscreen shows data directions. The arrow pointing to the left is a receiver channel
to which the user connects the target’s TX. Similarly, the arrow pointing to the right
is a transmitter channel to which the target device’s RX is connected.