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USB 3.0
PRESENTED BY
K.Suresh babu
UNDER THE GUIDANCE OF
Mr.M.V.Bhavani shankar
Professor
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CONTENTS
What is USB?
Pre-Releases Of USB
History Of USB
USB 3.0 Now Key Features
Connector Properties
Connector Types
Architecture
Conclusion
References
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What is USB?
USB stands for Universal Serial Bus
Provides an expandable, fast, bi-directional, low cost, hotpluggable Plug and Play serial hardware interface
Allows users to connect a wide variety of peripherals to acomputer and have them automatically configured and readyto use
Implemented to provide a replacement for legacy ports tomake the addition of peripheral devices quick and easy forthe end user
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Pre-Releases of USB
USB 0.7: Released in November 1994.
USB 0.8: Released in December 1994.
USB 0.9: Released in April 1995.
USB 0.99: Released in August 1995.
USB 1.0: Released in November 1995
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History of USB
There have been three versions released priorto 3.0
USB 1.0 in January 1996 data rates of 1.5 Mbps up to 12Mbps
USB 1.1 in September 1998 first widely used version ofUSB
USB 2.0 in April 2000Major feature revision was the addition of a high speed transfer rate
of 480 Mbps
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USB 3.0 Now
On Nov 17,2008 It was Developed
It is called as SUPER SPEED Technology
Transfer Mode of Up to 4.8 Gbps
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Current Devices using USB
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Key Features
Single connector type
Replaces all different legacy connectors with one well-defined standardized USB connector for all USB peripheral
devices
Hot swappable
Devices can be safely plugged and unplugged as neededwhile the computer is running (no need to reboot)
Plug and Play
OS software automatically identifies, configures, and loadsthe appropriate driver when connection is made
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Key Features
High performance
USB offers data transfer speeds at up to 4.8 Gbps
Expandability Up to 127 different peripheral devices may theoretically be
connected to a single bus at one time
Bus-supplied power USB distributes the power to all connected devices,
eliminating the need for an external power source for lowpower devices (flash drives, memory cards, Bluetooth)
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Connector propertiesAvailability
Consumer Products are expected to become availablein 2010
Usability Most connectors cannot be plugged in upside down
Durability
The standard connectors were designed to be robust
Compatibility
Two-way communication is also possible. In USB 3.0,full-duplex communications are done when usingSuperSpeed (USB 3.0) transfer
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Connector Types male micro USB
male mini USB B-type male B-type
female A-type
male A-type
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USB 3.0 vs Other Standards
FireWire 1394 has a maximum datatransfer rate of 800 Mbps
eSATA bus a a maximum datatransfer rate of 3.2 Gbps
Example:
Asus demonstrated transfer of a 25GB HD movie in 70 seconds using aUSB 3.0 bus versus the USB 2.0transfer time of about 4 hours
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CABLES
PIN NAME CABLE
COLOUR
DESCRIP
TION
1 VCC RED +5V
2 D- WHITE DATA-
3 D+ GREEN DATA+
4 GND BLACK GND
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Inside USB Cable
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Part Number Guide
3021001-03
USB Series Connector Series Length3021 is USB 2.0 001 -03 = 3 Ft
3023 is USB 3.0 002 -03M = 3 Meters
003
004
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Maximum Useful Distance
USB 1.1 maximum cable length is 3 metres (9.8 ft)
USB 2.0 maximum cable length is 5 metres (16 ft)
USB 3.0 cable assembly may be of any length
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Power Management for 3.0
Increased power to devices
Decreased power consumption during idle periods
Increased maximum bus power and device current draw withincreased power control for maximum efficiency
50% more power is provided for unconfigured or suspended devices(150 mA up from 100 mA)
80% more power is available for configured devices (900 mA up from500 mA).
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Devices utilizing increased speeds of
USB 3.0
External Blue-Ray Players
External high capacity HDD Drives
High Mega Pixel cameras
High Definition Video capture devices
Multi-channel Audio Interfaces
High capacity Jump Drives (USB Storage Devices)
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Architecture
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Architectural Overview
A USB system consists of a host and some number of devicesall operating together on the same time base and logicalinterconnect.
USB system can be described by three definitional areas:
USB interconnect USB devices
USB host
USB interconnect is the manner in which USB devices areconnected to and communicate with the host.
This includes the following: Topology
Data Flow Models
USB Schedule
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USB 3.0 Packet Handling
All data transfers initiated by host
Hub can be up to 5 layers deep (127 devices)
Packets routed NOT broadcast
Hubs use store and forward procedures Packets held by hub which are being directed to inactive port
Downstream packets use route string to navigate to
device
Upstream always contains host as destination
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USB 2.0 & USB 3.0
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Comparison USB 2.0
USB 3.0 USB 3.0 is 10X Faster than USB 2.0
USB 3.0: 4.8Gbit/sec
USB 2.0: 480Mbit/sec
Full-duplex data transfers using Bi-directional data interface
New Power Management features; Increased power to devices withdecreased power consumption during idle periods
Increased maximum bus power and device current draw with increased
power control for maximum efficiency
100% Backwards Compatible with USB 2.0
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APPLICATIONS
USB implements connections to storage devices using a set
of standards called the USB mass storage device class.
USB 3.0 can also support portable hard disk drives. Theearlier versions of USBs were not supporting the 3.5 inch hard
disk drives.
These external drives usually contain a translating device that
interfaces a drive of conventional technology (IDE, PATA,
SATA, ATAPI, or even SCSI) to a USB port.
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Applications
Wireless video display
Home and office
MP3s General data transfer
And More
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Why the upgrade? Mainly the need for faster transfer rates in devices
such as hard drives, flash card readers, and DVD,
Blu-ray, and HD DVD optical drives
User applications demanding a higher performance
connection between the PC and peripherals
Need for greater energy efficiency in todays
greener world
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Conclusion The Universal serial bus 3.0 is supporting a speed of
about 5 Gb/sec i.e. ten times faster than the 2.0
version.
So hopefully by the help of this SuperSpeed data
transfer rate the USB 3.0 will be replacing many of the
connecters in the future
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References USB System Architecture By Don Anderson
http://www.rfcafe.com/vendors/components/ultra-wideband-uwb.htm
http://www.reghardware.co.uk/2008/08/14/intel_posts_usb_3_hci_spec/
www.usb.org
http://www.intel.com/technology/comms/uwb
http://www.intel.com/technology/comms/wusb/index.htm
http://www.ece.ucsb.edu/~rajeev/data/courses/engr103/paper.pdf
http://whatis.techtarget.com/definition/0,,sid9_gci1188752,00.html
http://isi.edu/nsnam/ns/doc/node178.html
http://www.reghardware.co.uk/2008/11/18/usb_3_completed/
http://www.reghardware.co.uk/2008/01/09/ces_usb_3_revealed/
http://www.reghardware.co.uk/2008/08/14/intel_posts_usb_3_hci_spec/
http://www.everythingusb.com/usb2/faq.htm
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