User Guide

4. Driver Options and Software Interface
4.1 Virtual COM Port (VCP) Driver
CP2102N devices are pre-programmed with a VID of 0x10C4 and PID of 0xEA60. This VID and PID combination matches the Virtual
COM Port (VCP) driver. With this driver, the CP2102N will appear as a COM port and can be accessed using any terminal program or
custom-written software. Install the VCP driver as part of the Simplicity Studio installation or download it directly from the Silicon Labs
website (www.silabs.com/interface-software).
If the Virtual COM Port (VCP) drivers are used, the CP2102N will appear as a COM port in the Device Manager, as shown in the figure
below. The CP2102N will always use the lowest available COM port for operation. For instance, if COM ports 1 and 2 are in use by
other peripherals and applications, the CP2102N will use COM 3.
The CP2102N functions identically to a COM port from the reference point of both the host application and the serial device, and it can
support serial device control requests defined in the Microsoft Win32® Communications API. Examples for how to communicate with
the device as a serial COM port are included in AN197: Serial Communications Guide for CP210x or in the SDK.
Figure 4.1. CP2102N in Device Manager — VCP
UG205: CP2102N-EK Kit User's Guide
Driver Options and Software Interface
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