Method and apparatus for reducing the power consumption in a pro

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36475401, G06F 738, G06F 752

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active

058809813

ABSTRACT:
The present invention contemplates an improved multiplier circuit and method for reducing power consumption by reducing the number of transitions to the input of the multiplier. Each input to the multiplier is fixed for as long as possible by reordering the sequence of the multiplications to take advantage of duplicate input values. The intermediate results of each multiplication are stored in separate accumulators to obtain the final resultants. Power consumption is further reduced through a reduction in the number of transitions on the data bus linking the multiplier and the data register file containing the accumulators.

REFERENCES:
patent: 4498135 (1985-02-01), Caudel
patent: 4876660 (1989-10-01), Owen et al..
patent: 5045993 (1991-09-01), Murakami et al.
patent: 5333119 (1994-07-01), Raatz et al.
patent: 5448744 (1995-09-01), Eifert et al.
patent: 5513374 (1996-04-01), Baji
patent: 5661673 (1997-08-01), Davis
Mussol et al. High-level Synthesis Techniques for Reducing the Activity of Functional Units; Proceedings of International Symposium on Low Power Design, ACM-SIGDA and IEEE-CAS Apr. 23, 1995-Apr. 26. 1995.
On Parallel Digital Multipliers, L. Dadda; Alta Frequenza, Oct. 1976, vol. XLV.
Some Schemes for Parallel Multipliers, L Dadda; Alta Frequenze, May 1965, vol. XXXIV.
Pentium Processor System Architecture, 2.sup.nd Ed., Chapter 9, Anderson et al., 1995 MindShare, Inc.
Texas Instruments "TMS320C4X User's Guide", Software Applications, 1993.
High-level Synthesis Techniques for Reducing the Activity of Functional Units; Musoll et al., Proceedings of International Symposium on Low Power Design, sponsored by ACM-SIGDA and IEEE-CAS, Apr. 23, 1995 -Apr. 26, 1995.
AT&T, "WE DSP32 and DSP32C Application Software Library"; Feb. 1989.
Low Power Architecture Design and Compilation Techniques for High-Performance Processors, Ching-Long Su et al., IEEE 1994.
Architectures and Circuits for Parallel Digital Multipliers for Low Power, High Performance Applications, Lee et al., Dec. 23, 1994, Texas Instruments.
Design of Portable Systems, Chandrakasan et al., Custom Integrated Circuit Conference, IEEE 1994.
A Low Power 16 by 16 Multiplier Using Transition Reduction Circuitry, Lemonds et al., IWLPD Workshop Proceedings, Texas Instruments, 1994.
Delay Balanced Multipliers for Low Power/Low Voltage DSP Core, Sakuta et al.,Texas Instruments, 1991 IEEE.
The Metaflow Architecture, Popescu et al., Metaflow Technologies, Inc., IEEE Micro 1991.
Circuit and Architecture Trade-offs for High Speed Multiplication, Song et al., IEEE Journal of Solid State Circuits, vol. 26, No. 9, Sep. 1991.
Contemporary Logic Design, Chapter 5, Randy Katz, The Benjamin/Cummings Publishing Company, Inc. 1994.
Overview of SHARC Digital Signal Processor ADSP-2106X, SHARC Hardware 1996.
Digital Signal Processing Fundamentals, D. Koenig; 1992 National Instruments Corporation.
AT&T DSP3210, High Speed Number Crunching, Jan. 1996.
DSP Processors and Cores: The Options Multiply, Jeff Bier; Focus Report, Jul. 1995.

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