USB 3.0


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USB 3.0

  1. 1. Universal Serial Bus 3.0 INFINITE POSSIBILITIES!
  2. 2. <ul><li> What is USB? </li></ul>
  3. 3. What is USB? <ul><li>USB stands for Universal Serial Bus </li></ul><ul><li>Provides an expandable, fast, bi-directional, low cost, hot pluggable Plug and Play serial hardware interface </li></ul><ul><li>Allows users to connect a wide variety of peripherals to a computer and have them automatically configured and ready to use </li></ul>
  4. 4. What is USB? contd. <ul><li>Implemented to provide a replacement for legacy ports to make the addition of peripheral devices quick and easy for the end user </li></ul>
  5. 5. <ul><li>History of USB </li></ul>
  6. 6. History of USB <ul><li>Developed and standardized by a group of leading companies from the computer and electronics industries in 1995 </li></ul><ul><li>USB specifications were developed by Compaq, DEC, IBM, Intel , Microsoft, and NEC, joined later by HP, Lucent, and Phillips </li></ul>
  7. 7. History of USB contd. <ul><li>These companies formed the USB Implementers Forum as a non-profit to publish specifications and provide a support organization and forum for the advancement and adoption of USB technology </li></ul><ul><li>There have been three versions released prior to 3.0 </li></ul>
  8. 8. History of USB contd. <ul><ul><li>USB 1.0 in January 1996 – data rates of 1.5 Mbps and 12 Mbps </li></ul></ul><ul><ul><li>USB 1.1 in September 1998 – first widely used version of USB </li></ul></ul><ul><ul><li>USB 2.0 in April 2000 </li></ul></ul><ul><ul><ul><li>Major feature revision was the addition of a high speed transfer rate of 480 Mbps </li></ul></ul></ul><ul><ul><li>Important note – all versions are backwards compatible with previous versions of USB </li></ul></ul>
  9. 9. <ul><li>USB Now </li></ul>
  10. 10. USB Now <ul><li>The next generation of USB hardware and specifications is USB 3.0 </li></ul><ul><li>Version was announced by Pat Gelsinger at the Intel Developer Forum in September 2007 </li></ul><ul><li>USB 3.0 Promoter Group announced in November 2008 </li></ul>
  11. 11. <ul><li> Why the upgrade? </li></ul>
  12. 12. Why the upgrade? <ul><li>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 </li></ul><ul><li>User applications demanding a higher performance connection between the PC and peripherals </li></ul>
  13. 13. Why the upgrade? contd. <ul><li>Need for greater energy efficiency in today’s “greener world” </li></ul>
  14. 14. <ul><li>USB 3.0 Contributors </li></ul>
  15. 15. USB 3.0 Promoter Group Announcement
  16. 16. USB 3.0 Contributors
  17. 17. USB 3.0 Contributors contd.
  18. 18. <ul><li> USB 3.0 Features </li></ul>
  19. 19. USB 3.0 Features <ul><li>10x performance increase over USB 2.0 </li></ul><ul><li>Backward Compatible </li></ul><ul><ul><li>Legacy devices continue to work when plugged into new host connector. </li></ul></ul><ul><ul><li>New devices work when plugged in legacy systems albeit at USB 2.0 speeds. </li></ul></ul><ul><ul><li>Existing class drivers continue to work. </li></ul></ul>
  20. 20. USB 3.0 Features contd. <ul><li>Same USB Device Model </li></ul><ul><ul><li>Pipe Model </li></ul></ul><ul><ul><li>USB Framework </li></ul></ul><ul><ul><li>Transfer Types </li></ul></ul><ul><li>Power Efficient </li></ul><ul><ul><li>Provides excellent power characteristics (especially for ideal links) </li></ul></ul><ul><ul><ul><li>Both on the device and the platform </li></ul></ul></ul><ul><ul><li>Eliminate need for polling </li></ul></ul>
  21. 21. USB 3.0 Features contd. <ul><li>Extensible </li></ul><ul><ul><li>Protocol designed to efficiently scale up </li></ul></ul>
  22. 22. <ul><li>USB 2.0 vs. USB 3.0 </li></ul>
  23. 23. USB 2.0 vs. USB 3.0
  24. 24. <ul><li>USB 3.0 Bus Architecture </li></ul>
  25. 25. USB 3.0 Bus Architecture
  26. 26. USB 3.0 Bus Architecture contd. <ul><li>Dual-bus architecture SuperSpeed bus operates concurrently with USB 2.0 </li></ul><ul><ul><li>Electrically/mechanically backward & forward compatible </li></ul></ul><ul><ul><li>Devices discovered/configured at fastest signaling rate </li></ul></ul><ul><ul><li>Hubs provides additional connection points </li></ul></ul>
  27. 27. USB 3.0 Bus Architecture contd. <ul><li>SuperSpeed </li></ul><ul><ul><li>Dual simplex signaling </li></ul></ul><ul><ul><li>Packets routed to device </li></ul></ul><ul><ul><li>Hubs stored and forward </li></ul></ul><ul><ul><li>Asynchronous notifications </li></ul></ul>
  28. 28. <ul><li> USB 3.0 Connector </li></ul>
  29. 29. USB 3.0 Standard-A connector <ul><li>Std A – Same interface as USB 2.0 Standard-A connector, but with added pins for USB 3.0 Super-Speed signals </li></ul><ul><li>Complete campatibility with USB 2.0 Standard-A connector </li></ul>
  30. 30. USB 3.0 Standard-A connector contd. <ul><li>Double-stacked connectors supported </li></ul>
  31. 31. USB 3.0 Standard-B connector <ul><li>Std B – Defined for relativley large, stationary peripherals such as hard drivers and printers </li></ul><ul><li>Visually different from USB 2.0 Standard-B connector </li></ul><ul><ul><li>But the receptacle accepts a USB 2.0 Standard-B plug </li></ul></ul>
  32. 32. USB 3.0 Standard-B connector contd. <ul><li>Developed for device-powered applications </li></ul><ul><ul><li>For example – wireless adaptors </li></ul></ul>
  33. 33. USB 3.0 Standard-B connector contd. <ul><li>Based on the USB 3.0 Standard-B connector design, but with additional device POWER and GND pins for a device to supply power </li></ul><ul><li>The receptacle accepts the USB 3.0 Powered-B plug, USB 3.0 Standard-B plug,or USB 2.0 Standard-B plug </li></ul>
  34. 34. USB 3.0 Standard-B connector contd.
  35. 35. USB 3.0 Micro connector family <ul><li>Defined for hand held devices </li></ul><ul><li>Backward campatible with USB 2.0 Micro connectors </li></ul><ul><li>Micro B – Based on the proven USB 2.0 Micro-B connector design with an extended portion for the Super-Speed signals </li></ul>
  36. 36. USB 3.0 Micro connector family contd. <ul><li>USB 3.0 Micro-A and –AB connectors are identical to USB 3.0 Micro-B connector except for keying/profile differences </li></ul>
  37. 37. <ul><li>USB 3.0 Products </li></ul>
  38. 38. USB 3.0 products <ul><li>Buffalo produce world's first USB 3.0 hard disk drive </li></ul>Point Grey puts USB 3.0 into a webcam
  39. 39. <ul><li>Thank You </li></ul>