WO2000070433A1 - A system and a method to reduce power consumption - Google Patents
A system and a method to reduce power consumption Download PDFInfo
- Publication number
- WO2000070433A1 WO2000070433A1 PCT/US2000/012467 US0012467W WO0070433A1 WO 2000070433 A1 WO2000070433 A1 WO 2000070433A1 US 0012467 W US0012467 W US 0012467W WO 0070433 A1 WO0070433 A1 WO 0070433A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arm
- coprocessor
- logic
- component
- instruction
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30181—Instruction operation extension or modification
- G06F9/30189—Instruction operation extension or modification according to execution mode, e.g. mode flag
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3237—Power saving characterised by the action undertaken by disabling clock generation or distribution
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30003—Arrangements for executing specific machine instructions
- G06F9/30076—Arrangements for executing specific machine instructions to perform miscellaneous control operations, e.g. NOP
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30181—Instruction operation extension or modification
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
- G06F9/3877—Concurrent instruction execution, e.g. pipeline, look ahead using a slave processor, e.g. coprocessor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- Advance Control (AREA)
- Power Sources (AREA)
- Executing Machine-Instructions (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00930452A EP1099151B1 (en) | 1999-05-18 | 2000-05-08 | A system to reduce power consumption |
DE60034526T DE60034526T2 (en) | 1999-05-18 | 2000-05-08 | System for reducing energy consumption |
JP2000618810A JP4632279B2 (en) | 1999-05-18 | 2000-05-08 | System and method for reducing power consumption |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/313,933 US6438700B1 (en) | 1999-05-18 | 1999-05-18 | System and method to reduce power consumption in advanced RISC machine (ARM) based systems |
US09/313,933 | 1999-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000070433A1 true WO2000070433A1 (en) | 2000-11-23 |
Family
ID=23217815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/012467 WO2000070433A1 (en) | 1999-05-18 | 2000-05-08 | A system and a method to reduce power consumption |
Country Status (6)
Country | Link |
---|---|
US (1) | US6438700B1 (en) |
EP (1) | EP1099151B1 (en) |
JP (1) | JP4632279B2 (en) |
CN (1) | CN100485584C (en) |
DE (1) | DE60034526T2 (en) |
WO (1) | WO2000070433A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002046894A2 (en) * | 2000-11-13 | 2002-06-13 | Intel Corporation | Processor idle state |
EP1338956A1 (en) * | 2002-02-20 | 2003-08-27 | STMicroelectronics S.A. | Electronic data processing apparatus, especially audio processor for audio/video decoder |
EP1372065A2 (en) * | 2002-05-30 | 2003-12-17 | NEC Electronics Corporation | System large scale integrated circuit (LSI), method of designing the same, and program therefor |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6820189B1 (en) * | 1999-05-12 | 2004-11-16 | Analog Devices, Inc. | Computation core executing multiple operation DSP instructions and micro-controller instructions of shorter length without performing switch operation |
US6629262B1 (en) * | 1999-09-30 | 2003-09-30 | Toshiba Tec Kabushiki Kaisha | Multiplexed storage controlling device |
US6732203B2 (en) * | 2000-01-31 | 2004-05-04 | Intel Corporation | Selectively multiplexing memory coupling global bus data bits to narrower functional unit coupling local bus |
US7353368B2 (en) * | 2000-02-15 | 2008-04-01 | Intel Corporation | Method and apparatus for achieving architectural correctness in a multi-mode processor providing floating-point support |
US20030070013A1 (en) * | 2000-10-27 | 2003-04-10 | Daniel Hansson | Method and apparatus for reducing power consumption in a digital processor |
US6917608B1 (en) | 2000-12-22 | 2005-07-12 | National Semiconductor Corporation | Microsequencer microcode bank switched architecture |
US6963554B1 (en) | 2000-12-27 | 2005-11-08 | National Semiconductor Corporation | Microwire dynamic sequencer pipeline stall |
US7191350B2 (en) * | 2002-01-30 | 2007-03-13 | Matsushita Electric Industrial Co., Ltd. | Instruction conversion apparatus and instruction conversion method providing power control information, program and circuit for implementing the instruction conversion, and microprocessor for executing the converted instruction |
JP4412905B2 (en) * | 2003-01-28 | 2010-02-10 | パナソニック株式会社 | Low power operation control device and program optimization device |
US7197628B2 (en) * | 2003-12-10 | 2007-03-27 | Intel Corporation | Method and apparatus for execution flow synonyms |
US20050278517A1 (en) | 2004-05-19 | 2005-12-15 | Kar-Lik Wong | Systems and methods for performing branch prediction in a variable length instruction set microprocessor |
EP1600845A1 (en) * | 2004-05-28 | 2005-11-30 | STMicroelectronics Limited | Processor with power saving circuitry |
US7769983B2 (en) * | 2005-05-18 | 2010-08-03 | Qualcomm Incorporated | Caching instructions for a multiple-state processor |
US7882380B2 (en) * | 2006-04-20 | 2011-02-01 | Nvidia Corporation | Work based clock management for display sub-system |
US7937606B1 (en) | 2006-05-18 | 2011-05-03 | Nvidia Corporation | Shadow unit for shadowing circuit status |
US7657791B2 (en) * | 2006-11-15 | 2010-02-02 | Qualcomm Incorporated | Method and system for a digital signal processor debugging during power transitions |
US7711927B2 (en) * | 2007-03-14 | 2010-05-04 | Qualcomm Incorporated | System, method and software to preload instructions from an instruction set other than one currently executing |
CN101593287B (en) * | 2008-05-28 | 2010-12-08 | 北京中电华大电子设计有限责任公司 | Power consumption balancing method of smart card |
US8347132B2 (en) * | 2009-01-07 | 2013-01-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | System and method for reducing processor power consumption |
CN110750304B (en) * | 2019-09-30 | 2022-04-12 | 百富计算机技术(深圳)有限公司 | Method for improving task switching efficiency and terminal equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392437A (en) * | 1992-11-06 | 1995-02-21 | Intel Corporation | Method and apparatus for independently stopping and restarting functional units |
US5655124A (en) * | 1992-03-31 | 1997-08-05 | Seiko Epson Corporation | Selective power-down for high performance CPU/system |
US5666537A (en) * | 1994-08-12 | 1997-09-09 | Intel Corporation | Power down scheme for idle processor components |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0391028A (en) * | 1989-09-04 | 1991-04-16 | Mitsubishi Electric Corp | Pipeline processor |
US5420808A (en) * | 1993-05-13 | 1995-05-30 | International Business Machines Corporation | Circuitry and method for reducing power consumption within an electronic circuit |
JP3520611B2 (en) * | 1995-07-06 | 2004-04-19 | 株式会社日立製作所 | Processor control method |
US5996083A (en) * | 1995-08-11 | 1999-11-30 | Hewlett-Packard Company | Microprocessor having software controllable power consumption |
US5726921A (en) * | 1995-12-22 | 1998-03-10 | Intel Corporation | Floating point power conservation |
JP3623840B2 (en) * | 1996-01-31 | 2005-02-23 | 株式会社ルネサステクノロジ | Data processing apparatus and microprocessor |
US5815724A (en) * | 1996-03-29 | 1998-09-29 | Intel Corporation | Method and apparatus for controlling power consumption in a microprocessor |
US6014751A (en) * | 1997-05-05 | 2000-01-11 | Intel Corporation | Method and apparatus for maintaining cache coherency in an integrated circuit operating in a low power state |
JPH10326129A (en) * | 1997-05-23 | 1998-12-08 | Mitsubishi Electric Corp | Semiconductor unit |
US6219796B1 (en) * | 1997-12-23 | 2001-04-17 | Texas Instruments Incorporated | Power reduction for processors by software control of functional units |
US6049882A (en) * | 1997-12-23 | 2000-04-11 | Lg Semicon Co., Ltd. | Apparatus and method for reducing power consumption in a self-timed system |
-
1999
- 1999-05-18 US US09/313,933 patent/US6438700B1/en not_active Expired - Lifetime
-
2000
- 2000-05-08 EP EP00930452A patent/EP1099151B1/en not_active Expired - Lifetime
- 2000-05-08 DE DE60034526T patent/DE60034526T2/en not_active Expired - Lifetime
- 2000-05-08 JP JP2000618810A patent/JP4632279B2/en not_active Expired - Lifetime
- 2000-05-08 WO PCT/US2000/012467 patent/WO2000070433A1/en active IP Right Grant
- 2000-05-08 CN CNB008013918A patent/CN100485584C/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5655124A (en) * | 1992-03-31 | 1997-08-05 | Seiko Epson Corporation | Selective power-down for high performance CPU/system |
US5392437A (en) * | 1992-11-06 | 1995-02-21 | Intel Corporation | Method and apparatus for independently stopping and restarting functional units |
US5666537A (en) * | 1994-08-12 | 1997-09-09 | Intel Corporation | Power down scheme for idle processor components |
Non-Patent Citations (1)
Title |
---|
"ARM10 Thumb Family", ARM PRODUCT OVERVIEW, November 1998 (1998-11-01), XP002143886, Retrieved from the Internet <URL:http://www.arm.com/Documentation/Overviews/pdf/DVI0014A-04.pdf> [retrieved on 20000728] * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002046894A2 (en) * | 2000-11-13 | 2002-06-13 | Intel Corporation | Processor idle state |
WO2002046894A3 (en) * | 2000-11-13 | 2003-08-21 | Intel Corp | Processor idle state |
EP1338956A1 (en) * | 2002-02-20 | 2003-08-27 | STMicroelectronics S.A. | Electronic data processing apparatus, especially audio processor for audio/video decoder |
US6931506B2 (en) | 2002-02-20 | 2005-08-16 | Stmicroelectronics Sa | Electronic device for data processing, such as an audio processor for an audio/video decoder |
EP1372065A2 (en) * | 2002-05-30 | 2003-12-17 | NEC Electronics Corporation | System large scale integrated circuit (LSI), method of designing the same, and program therefor |
EP1372065A3 (en) * | 2002-05-30 | 2004-02-25 | NEC Electronics Corporation | System large scale integrated circuit (LSI), method of designing the same, and program therefor |
Also Published As
Publication number | Publication date |
---|---|
CN1318165A (en) | 2001-10-17 |
EP1099151B1 (en) | 2007-04-25 |
DE60034526T2 (en) | 2007-11-22 |
JP4632279B2 (en) | 2011-02-16 |
US6438700B1 (en) | 2002-08-20 |
CN100485584C (en) | 2009-05-06 |
DE60034526D1 (en) | 2007-06-06 |
JP2002544618A (en) | 2002-12-24 |
EP1099151A1 (en) | 2001-05-16 |
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