AN721 Datasheet - Silicon Laboratories
MFG CO.

Silicon Laboratories
Introduction
This document explains the steps required to customize a fixed function USB device. It is intended for developers creating products based on the CP210x/CP211x/CP2130 USB Bridge Controllers. It contains information about obtaining a Vendor ID (VID) and Product ID (PID) for a CP210x/CP211x/CP2130 product and describes the steps necessary for customizing the device descriptors. Refer to www.silabs.com/interface for the latest revisions of this document and other application notes related to the CP210x/CP211x/CP2130 device families.