Connecting to the Adapter#
There are two main ways to connect to the adapter. All kits support connecting through a USB connector, while some also support connecting through an Ethernet connector. To use the adapter, the USB connector must always be connected because it provides power to the adapter. The Ethernet interface provides all the features available through USB, plus some additional capabilities.
USB Interface 
Connecting to the adapter through the USB connector enables most of the adapter's features. The host detects the adapter and connects in two main ways:
By adapter's serial number: Used by tools such as Simplicity Commander and Simplicity Studio.
Via VCOM: Enables communication with the target device through the adapter.
Ethernet Interface 
Connecting to the adapter through the Ethernet connector enables all of the adapter's features and allows access over TCP/IP. It has multiple sockets that can be connected to, as listed in the following table:
Socket | Name | Description |
|---|---|---|
4900 | Communication with the target device through the debug interface. | |
4901 | Virtual COM port. | |
4902 | Command-line interface for the adapter. | |
4904 | Time synchronization between adapters. | |
4905 | Data from services running on the adapter. | |
19020 | J-Link channel | J-Link communication channel. |
Other Connectors#
Depending on the type of kit, additional connectors may be present. Some connect directly to the target device, such as the EXP header, QWIIC connector, or MikroE connector. Some kits also provide USB and Ethernet connections directly to the target device.
Other common connectors (such as the debug connector, the Simplicity connector, and the Mini Simplicity connector) usually connect through a multiplexer to allow communication between the adapter, the target device, and an externally connected device or debugger. This means that, for most features, a kit can support having a target device and an external device connected at the same time, as switching between the connectors is handled by the adapter.
Refer to the specific kit's user guide for its hardware configuration information.
Logic Analyzer Connector
The logic analyzer connector has four pins that connect to channels 0-3 of the adapter's logic analyzer. See logic analyzer for more details.
Debug Connector 
The debug connector is used for debugging and can function as an input or an output, depending on the selected debug mode. In select debug modes, it also supports connection to an external ETM trace decoder like J-Trace.
Simplicity Connector
The Simplicity Connector enables advanced debugging features for external targets, including:
Mini Simplicity Connector
The Mini Simplicity Connector combines features of the debug connector and the Simplicity Connector in a smaller form factor. It provides: