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USB OTG (On-The-Go)

Overview

Due to its widespread acceptance, USB is becoming the de facto industry standard for connecting peripherals to PCs and laptops. Many of the new peripherals now using USB are also portable devices. As these portable devices increase in popularity, there is a growing need for them to communicate directly with each other when a PC is not available. The On-The-Go Supplement addresses this need for mobile interconnectivity by allowing a USB peripheral to have the following enhancements:

Limited host capability to communicate with selected other USB peripherals
A small USB connector to fit the mobile form factor
Low power features to preserve battery life

Spec

USB OTG Design and Compliance Specifications authored by ACON, Cypress, Ericsson, Hewlett-Packard, Intel, MCCI, Mentor, Microsoft, Motorola, NEC, Nokia, Onspec, Palm, Philips, PMTC, Qualcomm, SoftConnex, Synopsys, Texas Instruments, TransDimension

USB On-The-Go Supplement 1.0 released in 2001
– Revision 1.0a released July 9, 2003
USB OTG compliance specification released February 22,2003
Full-Speed USB OTG silicon and IP Certified
– Began October 2003
– Plugfests
– Independent Labs

Implementation

Application Examples:

Mobile Phone-Exchange contact information Email pictures, upload pictures to web Upload/download/broadcast music Upload/download files Scan business cards
Still Image Camera-Exchange pictures Email pictures, upload pictures to web Print pictures Store pictures
Printer-Print pictures Print scanned image Print files stored on device
MP3 Player-Exchange songs Upload/download songs

Resources

Introduction to USB ON-THE-GO-Questions and Answers

Companies wishing to use the certified USB On-The-Go logos must have a current USB-IF Trademark License Agreement on file.

USB On-The-Go Stack-Full OTG support, including the SRP and HNP protocols as well as dynamic loading and unloading of the device/host stacks.

What is USB OTG?-Describes the term USB OTG.

High quality USB OTG software solution

Everything USB-Learn more about the different flavors of USB and communicate

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