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USB Explained: An Introduction to USB and Its Future

Authored on: Jul 2, 2010

Technical Paper

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The Universal Serial Bus (USB) was introduced to the world of PC computing to solve the growing problem of how to connect peripherals to a PC. The world of desktop computers needed a way, not only to physically connect devices, but also allow them to be identified and categorized to enable a simple ease of use and method of discovery. Read this paper to learn more.
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prabhakar_deosthali Posted Jul 11, 2010

This paper by Mentor Graphics is a short and simple overview of USB. Came USB and all those engineers who struggled with those 9 pin and 25 pin RS-232 interfaces and using serial multiplexers to attach multiple serial peripherals , heaved a sigh of relief. The best visibility of USB was seen when those sleek Pen drives appeared in the market and the marketing executives no more required to carry their heavy laptops and bunch of CDs to give presentations to their customers. Just carry a Pen drive like a key chain , hook it to your customers Lap-top and there you go. This standard has definitely a much longer life. No wonder tomorrows home appliances may have a USB port and you could download Micowave recipes , washing machine programs using a pen-drive.

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rabisnkr Posted Jul 13, 2010

Really disappointed. Expected a much deeper coverage, especially since it came from mentor Graphics

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lifewingmate Posted Jul 15, 2010

I used to work in a USB IC architecture team. My review of the paper is such that it is the right amount of coverage as it is an introduction / overview more for marketing purposes rather than in-depth technical paper (IEEE, for example). Mentor Graphics did an excellent job briefing about USB technology.

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MHK_#1 Posted Jul 31, 2010

I even did not notice that there is Wireless USB. I am going to dig up, if any company developed wireless USB3 and how it should work. As author said I am already using all of wireless needs with Bluetooth and Wi-Fi. For the backward compatibility, it is worth to mention that USB3.0 is also a backward compatible, continued from USB2.0as author mentioned. 5Gbit/s is the ideal and theoretical condition. In practical Lab and simulation environment, it barely made about 3Gb/s (depending on how fast it can lock a symbol and it can recover from a powerdown). Please note that there is no EIDL in USB3 so it has to continue transmit a junk until the RxReceiver is shutdown from powerdown or told to shut down. I hope it would be something better way to handle RxReceiver in the future USB architectural design.

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Patk0317 Posted Aug 9, 2010

This is a good executive summary of the history of USB, but if you actually need to design USB, better to visit USB.org for detailed information.

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Em_Linux Posted Feb 23, 2011

Thank you ...For the useful information.. have good day Balu

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simon_gbafe Posted Aug 13, 2010

Does anyone have am idea where I can lay my hands on how the USB technology works? The software and hardware interface as well as how it operates. What are the technical details of how the Universal Serial Bus function? How is it that the USB controller is able to emulate the multiple controllers for Video, Keyboard, Mouse, HDD I/O, etc?

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Rajesh Jain Posted Aug 29, 2010

Visit USB.org, there u will get all technical specifications for usb2.0, usb3.0, controllers, drivers etc.

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Patk0317 Posted Aug 31, 2010

Cypress also has quite a few technical articles on USB http://www.cypress.com/?app=search&searchType=keyword&keyword=USB&rtID=108&id=167&applicationID=0&l=1

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N.Vijay Posted Aug 19, 2010

really disappointed... even wikipedia is better !!

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Rajesh Jain Posted Aug 29, 2010

Agree, information in this paper is quite less.

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TigiTom Posted Sep 6, 2010

Too less of information

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Richar Posted Sep 8, 2010

very very poor ... introduction?...child homework

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hjhqjhkjhkjhkj Posted Sep 15, 2010

well, it gives a quick overview on the future.

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Mathivanan Posted Sep 24, 2010

For Baby's it will be usefull

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VNP Posted Nov 4, 2010

"USB explained" implies some technical details. But as it was noted "it is an introduction ... for marketing purpose". So, actually it is trap dug by Mentor Graphics. Sad story.

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KeithSchaub Posted Nov 29, 2010

This is mostly an overview of USB with little technical content. If you are new to wireless and looking for an overview of what USB is, its benefits, etc., this is definitely a good source. However, if you desire a technical understanding of USB, look elsewhere.

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QWESTER Posted Dec 16, 2010

Some unncessary piling on. The point was made and usb.org recommended. Why say more?

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sbenchorin Posted Jan 20, 2011

Guys, Thank you for your feedback! As the name of this paper suggests, this was just an into. We will followup with a deep technical paper on this topic. Warmest regards, Shay (Director of Marketing for Mentor Embedded)

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sk103 Posted Jan 25, 2011

I recommend http://en.wikipedia.org/wiki/Universal_Serial_Bus

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KHUSHRUG Posted Feb 2, 2011

Dear Mr Shay Thanks for the info on USB We are interested to Hook upa USB PEN DRIVE to my STEREO PLAYER which does not have a USB PORT Pls inform i f therare any suitable Kits/ Cables etc for the job Thanks K.GOTLA ZEDENTERPRISE@GMAIL.COM

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seran Posted Feb 8, 2011

USB sterio player is available in Bangalore Infia S.P Road, Buy the kit connect an auido amplifier to it and usb connection and keyboard, remote is available for Rs150/=only $3. you can build a usb player. I have already build working with out any problem for more than year regards..kannan

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Andy_I Posted Feb 17, 2011

This paper might be nice if it existed. But nothing comes up when I login and click on it. Nada. Zilch. Hello, EE Times? Where the heck did you go? Why do you feel the need to screw around with your readers?

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arginine Posted Feb 22, 2011

I got the same message...error report and could pull up the paper.

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sw_eng Posted Feb 22, 2011

me too...I think it has been removed :-(

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charly5139 Posted Mar 3, 2011

Perfect at user- or marketing level readers (can I use the same connector for USB 3.0?), not sufficient for engineering community.

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