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AN495 Datasheet, PDF (1/22 Pages) STMicroelectronics – Effective filtering of TDE1707
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CP2112 INTERFACE SPECIFICATION
1. Introduction
The Silicon Laboratories CP2112 is a USB device that adheres to the USB-defined Human Interface Device class
specification. HIDs communicate with a USB host through the use of reports. This document is a specification for
the reports supported by the CP2112 and describes the configurable parameters.
Silicon Laboratories provides dynamic libraries that adhere to this specification for the following operating systems:
 Windows®
 Mac®
This document is intended for the following:
 Users who are using an operating system that is not supported by the dynamic libraries and who need to
implement their own interface.
 Users who want to integrate the device interface into their application.
User Application
(Implementing CP2112
Interface Specification)
HID Driver
(Provided by OS)
USB Root Hub
PC
Rev. 0.2 8/10
CP2112 HID USB-to-SMBus Bridge
SMBus Devices
Figure 1. System Architecture Diagram
Copyright © 2010 by Silicon Laboratories
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