HIGH SPEED U.S.B 3.0

HIGH SPEED U.S.B 3.0

• 1.
  NAME : PRANAYAGRAWAL Roll. No : 02 B.Tech CSE III sem
• 2.
  U think uknow USB?  Universal Serial Bus.  Standard for connecting devices to PC.  Was basically designed to allow many peripherals to be connected using a single standardized interface socket and to improve ‘plug n play’ capabilities.  Provides an expandable, fast, bi-directional, low cost, hot pluggable Plug n Play serial hardware interface.  €Allows users to connect a wide variety of peripherals to a computer and have them automatically configured and ready to use.  €Implemented to provide a replacement for legacy ports to make the addition of peripheral devices quick and easy for the end user.
• 3.
  Why USB isso popular?  Single connector type  Hot swappable  Devices can be safely plugged & unplugged as needed while the computer is running.  Plug and Play  When you connect a USB device to your computer, the OS automatically identifies, configures, and loads the appropriate driver.  High performance  Offers high performance in data transfer.  Expandability  At a time, upto 127 different devices may be connected to a single bus.  Bus-supplied power  USB distributes power for all low power devices.  Easy to use  User has no confusion about “what plug goes into what socket”  User doesn’t need to bother about device drivers.  Less expensive & easily available in the market
• 4.
  History of USB  USB 1.0 in January 1996 - Low-speed 1.5Mb/s - Full-speed 12Mb/s  USB 2.0 (Hi-speed) in April 2000 - Max speed 480Mb/s.  USB 3.0 (SuperSpeed) in Nov 2008 -Speed up to 5Gb
• 5.
  Key features ofUSB 3.0  Also referred to as ‘SuperSpeed’ USB  Speeds 10x faster than 2.0 (ie, signaling rate of 4.8Gbps)  It can transfer a 25GB file in approx. 70 sec.  Consist of Dual-bus architecture – (low-speed , full-speed, hi-speed & SuperSpeed)  It has Fast ‘Sync-N-Go’ technology minimizes user wait-time.  Allows for streaming  Backward compatible with USB 2.0  USB 2.0 device will work with USB 3.0 host  USB 3.0 device will work with USB 2.0 host  Supports higher power  Has a better power output ~ 900 mA  Upto 4 devices can be charged from a single port  Asynchronous instead of polled traffic flow  Optimized power efficiency
• 6.
  Communication in USB  USB device communication is based on pipes (logical channels).  Pipes (depending on type of data transfer)  Stream pipes  Message pipes • a uni-directional pipe connected to a uni-directional endpoint that transfers data using an isochronous, interrupt, or bulk transfer. Stream pipe • a bidirectional pipe connected to a bi-directional endpoint that is exclusively Message used for control data flow. pipe  isochronous transfers: at some guaranteed data rate but with possible data loss (e.g. realtime audio or video). interrupt transfers: used for devices that need guaranteed quick responses (bounded latency) (e.g. pointing devices and keyboards). bulk transfers: large sporadic is transferred using all remaining available bandwidth, but with no guarantees on bandwidth or latency (e.g. file transfers). control transfers: typically used for short, simple commands to the device, and a status response, used.
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   Based onTired-Star Topology  Single Host controller& upto 127 slave devices  The host controller is connected to a hub, which allows a number of ports. A device can be plugged into a hub, and that hub can be plugged into another hub and so on..  Length of any cable is limited to 5 metres.  So USB is intended as a bus for devices near to the PC. Typical 4-port Hub
• 8.
  Dual Bus architectureof USB 3.0  USB 3.0 is a physical SuperSpeed bus combined in parallel with a physical USB 2.0 bus.  USB 3.0 Host  USB 3.0 Interconnect  USB 3.0 Devices  USB 3.0 Host includes a SuperSpeed + non SuperSpeed bus interfaces, which are parallel buses that may be active simultaneously.  Dual simplex signaling. (can both send & receive data simultaneously)  Upto 127 extended connectors can be connected to 3.0 host while the previous version support only 31.
• 9.
  USB 3.0 cables  USB 2.0 Connections  USB 3.0 Connections •USB 3.0 cables have two additional shielded differential pairs (SDP) of wires for a total of 9 signal wires. •USB 3.0 cables have to be shielded to prevent electromagnetic interference and maximize signal integrity. Hence they are thicker, heavier, less flexible and more expensive than 2.0 cables.
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  Types of Connectors  USB 2.0 Connectors  USB 3.0 Connectors Micro-B
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  Pin assignments of connectors
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  Type A connectors
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  Type B connectors
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  Micro B connectors  Widely used to connect Smart phones & tablets The USB 3.0 cable can not be plugged into a USB 2.0 port, but the 2.0 cable can be used in a 3.0 port.
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  USB 3.0 vs.Other Standards FireWire (IEEE 1394)  Master-slave Vs peer-to-peer architecture for network.  Tiered-star Vs Tree topology  A USB network relies on a single host at the top of the tree to control the network. In a FireWire network, any capable node can control the network.  USB runs with a 5V power line, FireWire can supply up to 30V.  FireWire needs an ‘add on card’ ,but USB ports are available on all standard motherboards. eSATA  Are robust connectors intended for connection to external hard drives and SSDs.  Max transfer rate is 3.2 Gbps Vs 4.8Gbps  Doesn’t supply power for external devices.
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  APPLICATIONS  ConnectingHuman Interface Devices such as Keyboard, mouse, joystick etc.  USB –to-PS/2 adapters  USB mass storage device class & portable devices  USB chargers (mobile, Dig Cam, iPod..)  Powering up low power devices  General data transfer  Wireless video display  Support external hard disk & optical disk drives.  It can support Full-Speed hub, hi-speed hub and SuperSpeed hub.  ……
• 17.
  Conclusion  TheUniversal serial bus 3.0 is supporting a speed of about 5 Gbps i.e. Solution for many bandwidth hungry problems..  So hopefully by the help of this SuperSpeed data transfer rate the USB 3.0 will be replacing many of the connectors in the future..
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  References  USBSystem Architecture By Don Anderson  www.usb.org  http://www.scribd.com  http://www.intel.com/technology/comms/uwb  http://isi.edu/nsnam/ns/doc/node178.html  http://www.reghardware.co.uk  http://www.everythingusb.com/usb3
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  Any Queries??.. ;)