High performance microprocessor design
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High-Performance Microprocessor Design. Outline. Introduction Technology scaling Power Clock Verification. Introduction. Alpha has historically been at the forefront of processor performance Clean architectural design Clever micro-architectural design Aggressive circuit design

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Presentation Transcript

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Outline

  • Introduction

  • Technology scaling

  • Power

  • Clock

  • Verification

High-Performance Microprocessor Design


Introduction l.jpg
Introduction

  • Alpha has historically been at the forefront of processor performance

    • Clean architectural design

    • Clever micro-architectural design

    • Aggressive circuit design

  • As a result, Alpha designers had to be at the forefront in dealing with the challenges of DSM scaling.

High-Performance Microprocessor Design


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Power

  • Power dissipation limits performance

    • Lower voltage

    • Conditional clocks

  • Power distribution is a major concern

    • Supply affects circuit performance, reliability

    • IR drops, L dI/dt drops

    • Requires careful design of power supply grid

    • On/off chip decoupling capacitors

High-Performance Microprocessor Design


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Clock

  • High clock rates require extremely careful clock design. Must control

    • Slew rate

    • Skew

    • Jitter

  • And try not to burn up the chip doing it

High-Performance Microprocessor Design


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Verification

  • Verification has become the largest component of design effort.

  • Static timing

  • Electrical checks

  • Logic verification

High-Performance Microprocessor Design


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