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Hyper transport technology

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  • 1. HYPER TRANSPORT TECHNOLOGY BY, U.L.SUJATHA 08Q61A0542
  • 2. AGENDA:
    • INTRODUCTION
    • HISTORY
    • HOW IT WORKS?
    • IMPLEMENTATIONS
    • PROS AND CONS
    • CONCLUSION
  • 3. INTRODUCTION
    • Hyper Transport (HT) is a state-of-art packet-based, high-bandwidth, scalable, low latency point-to-point interconnect technology that links processors to each other, processors to coprocessors and processors to I/O and peripheral controllers.
    • Hyper Transport is an open standard technology managed, promoted and licensed to the industry at large by the Hyper Transport Consortium
  • 4. WHY HTT IS DEVELOPED? THE I/O BANDWIDTH PROBLEM
    • While microprocessor performance continues to double every eighteen months, the performance of the I/O bus architecture has lagged, doubling in performance approximately every three years.
    • Every time processor performance doubles, latency only increases by a factor of 1.2.
  • 5. THE I/O BANDWIDTH PROBLEM
  • 6. THE HYPERTRANSPORT™ TECHNOLOGY SOLUTION
    • HyperTransport is intended to support “in-the-box” connectivity
    • High-speed, high-performance, point-to-point link for interconnecting integrated circuits on a board.
    • Max signaling rate of 1.6 GHz on each wire pair, a HyperTransport technology link can support a peak aggregate bandwidth of 12.8 Gbytes/s.
  • 7. THE HYPERTRANSPORT™ TECHNOLOGY SOLUTION
  • 8. HISTORY:
  • 9. HYPERTRANSPORT™ DESIGN GOALS
    • Improve system performance
    • Simplify system design
    • Increase I/O flexibility
    • Maintain compatibility with legacy systems
    • Ensure extensibility to new system network architecture (SNA) buses
    • Provide highly scalable multiprocessing systems
  • 10. FLEXIBLE I/O ARCHITECTURE
    • The physical layer defines the physical and electrical characteristics of the protocol. This layer interfaces to the physical world and includes data, control, and clock lines.
    • The data link layer includes the initialization and configuration sequence, periodic cyclic redundancy check (CRC), disconnect/reconnect sequence, information packets for flow control and error management, and double word framing for other packets.
    • The protocol layer includes the commands, the virtual channels in which they run, and the ordering rules that govern their flow.
    • The transaction layer uses the elements provided by the protocol layer to perform actions, such as reads and writes.
    • The session layer includes rules for negotiating power management state changes, as well as interrupt and system management activities.
  • 11. DEVICE CONFIGURATIONS
  • 12. ELECTRICAL CONFIGURATION
    • The signaling technology used in HyperTransport technology is a type of low voltage differential signaling (LVDS ).
    • LVDS has been widely used in these types of applications because it requires fewer pins and wires.
    • Cost and power requirements are reduced because the transceivers are built into the controller chips.
  • 13. HYPERTRANSPORT ENVIRONMENTS
  • 14. HYPERTRANSPORT ENVIRONMENTS
  • 15.  
  • 16. ADVANTAGES
    • It is a packet based technology
    • Provides low latency
    • High bandwidth
    • Decreases no. of buses
    • Reduces packet overhead
  • 17.  
  • 18. CONCLUSION
    • Hyper Transport technology is a new high-speed, high-performance, point-to-point link for integrated circuits. It provides a universal connection designed to reduce the number of buses within the system, provide a high-performance link for embedded applications, and enable highly scalable multiprocessing systems.
    • Doubtlessly future will see the tremendous advancement of Hyper Transport technology. Hyper Transport technology will bring a revolution in the bus architecture.
  • 19.  
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