Presentation 2000/11/23
A Memory Power Reduction Technique for Core-base System LSIs
Tohru ISHIHARA, Kunihiro ASADA,
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Abstract(in English) A system level approach for a memory power reduction is proposed in this paper.The basic idea is allocating frequently executed object codes into a small subprogram memory and optimizing supply voltage and threshold voltage of the subprogram memory.Since large scale memory contains a lot of direct paths from power supply to ground, power dissipation caused by subthreshold leakage current is more serious than dynamic power dissipation.Our approach optimizes the size of subprogram memory, supply voltage, and threshold voltage so as to minimize memory power dissipation including static power dissipation caused by leakage current.A heuristic algorithm which determines code allocation, supply voltage, and threshold voltage simultaneously so as to minimize power dissipation of memories is proposed as well.Our experiments with some benchmark programs demonstrate significant energy reductions up to 80% over a program memory which does not apply our approach.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Low power design / Memory / Voltage scaling / System LSI
Paper # VLD2000-85,ICD2000-142,FTS2000-50
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Conference Date 2000/11/23(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Memory Power Reduction Technique for Core-base System LSIs
Sub Title (in English)
Keyword(1) Low power design
Keyword(2) Memory
Keyword(3) Voltage scaling
Keyword(4) System LSI
1st Author's Name Tohru ISHIHARA
1st Author's Affiliation VLSI Design and Education Center, the University of Tokyo()
2nd Author's Name Kunihiro ASADA
2nd Author's Affiliation VLSI Design and Education Center, the University of Tokyo
Date 2000/11/23
Paper # VLD2000-85,ICD2000-142,FTS2000-50
Volume (vol) vol.100
Number (no) 474
Page pp.pp.-
#Pages 6
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