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Energy Efficient Microprocessor Design

  • Thomas D. Burd
  • Robert W. Brodersen

Table of contents

  1. Front Matter
    Pages i-xii
  2. Thomas D. Burd, Robert W. Brodersen
    Pages 1-6
  3. Thomas D. Burd, Robert W. Brodersen
    Pages 7-43
  4. Thomas D. Burd, Robert W. Brodersen
    Pages 45-78
  5. Thomas D. Burd, Robert W. Brodersen
    Pages 79-124
  6. Thomas D. Burd, Robert W. Brodersen
    Pages 125-167
  7. Thomas D. Burd, Robert W. Brodersen
    Pages 169-215
  8. Thomas D. Burd, Robert W. Brodersen
    Pages 217-250
  9. Thomas D. Burd, Robert W. Brodersen
    Pages 251-282
  10. Thomas D. Burd, Robert W. Brodersen
    Pages 283-304
  11. Thomas D. Burd, Robert W. Brodersen
    Pages 305-350
  12. Thomas D. Burd, Robert W. Brodersen
    Pages 351-354
  13. Back Matter
    Pages 355-357

About this book

Introduction

This work began in 1995 as an outgrowth of the InfoPad project which showed us that in order to reduce the energy consumption of a portable multimedia terminal that something had to be done about the consumption of the microprocessor subsystem. The design of the InfoPad attempted to reduce the requirements of this general pur­ pose processor by moving the computation into the network or by the use of highly optimized integrated circuits, but in spite of these efforts it still was a major consumer of energy. The reasons for this became apparent as we determined that the energy required to perform a function in dedicated hardware could be several orders of magnitude lower than that consumed in the InfoPad microprocessor. We therefore set out on a full fledged attack on all aspects of the microprocessor energy consumption [1 J. After considerable analysis it became clear that though better circuit design and a stream­ lined architecture would assist in our goal of energy reduction, that the biggest gains were to be found by operating at reduced voltages. For the busses and VO this could be accomplished without significant degradation of the processor performance, but this was not a straightforward solution when applied to the core of the processor sub­ system (CPU and memory).

Keywords

Signal Software architecture circuit design computer computer architecture integrated circuit microprocessor operating system processor

Authors and affiliations

  • Thomas D. Burd
    • 1
  • Robert W. Brodersen
    • 1
  1. 1.Berkeley Wireless Research CenterUniversity of CaliforniaBerkeleyUSA

Bibliographic information