Transcript
SEMINAR ON
SUPER SPEED USB3.0
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INTRODUCTION
• The USB 3.0 Promoter Group announced on November 17, 2008, version 3.0 and submitted to USB-IF
• The first certified USB 3.0 consumer products were announced January 5, 2010
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UNIVERSAL SERIAL BUS
• Designed to allow many peripherals to be connected using a single standardized interface socket.
• Consists of a host, USB ports, and peripheral devices connected in a tiered-star topology
• Also called as Superspeed• Provides power to low power consuming
devices
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Pre-releases1 USB-IF formed
1 USB 1.0 specification 12 Mbit/s
1 USB 2.0 specification 480 Mbit/s
1 USB 3.0 specification 5 Gbit/s
2010 USB 3.0 devices in market
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Architectural components
Hub Provides electrical interface betweendevices and host. Functionalities TypesHost Types Functionalities
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DUAL BUS ARCHITECTURE• USB 3.0 is a
physical SuperSpeed bus combined in parallel with a physical USB 2.0 bus
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SUPER SPEED CONNECTION
Device notifies it is connected
Host makes request
Device ready notifies this with ERDY
Else tells host unavailable to process by sending NRDY
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Physical structure
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Cable structure
Connector pins
• One power pair• One twisted signal pair for USB 2.0 data path• Two twisted signal pairs for the SuperSpeed
data path.• Supports full duplex mode
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CABLE STRUCTURE
CONNECTOR PINS
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FEATURES
• Transfer Rate• Backward compatibility• Power specifications• Cable length• Transfer mode
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USB 3.0 vs USB2.0
USB 3.0 USB 2.0•Super speed High speed •900 mA power 500 mA•Full duplex Half duplex
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ADVANTAGES
• Super speed• Power efficiency• Efficient when compared to its competitors• Backward compatibility
DRAWBACKS• Cable length is limited to 3m.• Intel at present not supporting
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CONCLUSION
• USB 3.0 wil also be popular like earlier versions.
• As it is backward compatible it will be used in the new computers and devices
• High speed communication protocol.
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REFERENCES
[1] en.wikipedia.org/wiki/Universal_Serial_Bus[2]USB 3.0 specification released by USB consortium www.usb.org/developers/docs[3] www.inno-logic.com/resourcesUSB3.html[4] deviceguru.com/superspeed-usb-promises5gbps
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23/01/12
THANK YOU
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