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Hamming Code

Hamming Code. Clarissa David Timmy Lau WingChing Lin Jonathan Lee Advisor: Dr. David Parent December 7, 2005. Agenda. Abstract Introduction Why a Hamming Code? Potential Applications Theory of Operation Calculations Cadence Details Summary of Results Cost Analysis Conclusions.

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Hamming Code

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  1. Hamming Code Clarissa David Timmy Lau WingChing Lin Jonathan Lee Advisor: Dr. David Parent December 7, 2005

  2. Agenda • Abstract • Introduction • Why a Hamming Code? • Potential Applications • Theory of Operation • Calculations • Cadence Details • Summary of Results • Cost Analysis • Conclusions

  3. Abstract • Target Specification • Clock Frequency: 200MHz • Load Capacitance: 30fF • Area: 900x500 micron squared • Actual Specification • Clock Frequency: 160MHz • Load Capacitance: 30fF • Area: 932.55 x 915.45 micron squared

  4. Introduction • Hamming Code • Detects single and double-bit errors • Application • Telecommunication (i.e. networking) • Theory • Using 4 data bits, can generate 3 correction bits giving a total of 7 bits • Can correct any single bit error

  5. Longest Path

  6. Schematic Note: This is an Error Generator Gate Level Schematic of Hamming Code

  7. Schematic Block schematic of Hamming without the flip-flop

  8. Schematic Schematic of Hamming Code with flip-flop at the start

  9. Layout Layout of Hamming Code

  10. Verification: DRC Verification of DRC Passing

  11. Verification: LVS Verification of LVS: PASSED!!!!

  12. Simulation NCVerilog of Hamming Code Logic

  13. Simulation

  14. Simulation Simulation of Hamming Code with flip-flop

  15. Simulation Simulation of error generator

  16. Cost Analysis But from us….. FREE!!!!!

  17. Lessons Learned • EXPOSE YOURSELF TO THE PROJECT EARLY • Be organized about your routing • Debugging layout • Work together as a team • EXPOSE YOURSELF TO THE PROJECT EARLY !!!

  18. Summary Complete Circuit • Clock Frequency: 160MHz • Area: 932.55 x 915.45 microns squared • Load Capacitance: 30fF

  19. Acknowledgements • Thanks to Cadence Design Systems • Thanks to Professor David Parent • Thanks to the current and past students of EE166

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