WO2009075102A1 - クロック制御装置、クロック制御方法、クロック制御プログラム及び集積回路 - Google Patents

クロック制御装置、クロック制御方法、クロック制御プログラム及び集積回路 Download PDF

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Publication number
WO2009075102A1
WO2009075102A1 PCT/JP2008/003687 JP2008003687W WO2009075102A1 WO 2009075102 A1 WO2009075102 A1 WO 2009075102A1 JP 2008003687 W JP2008003687 W JP 2008003687W WO 2009075102 A1 WO2009075102 A1 WO 2009075102A1
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WO
WIPO (PCT)
Prior art keywords
clock control
command
clock
unit
clock switching
Prior art date
Application number
PCT/JP2008/003687
Other languages
English (en)
French (fr)
Inventor
Ryo Yokoyama
Tadao Tanikawa
Original Assignee
Panasonic Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Priority to JP2009545349A priority Critical patent/JP5388864B2/ja
Priority to CN2008800046506A priority patent/CN101606135B/zh
Priority to US12/526,365 priority patent/US8117474B2/en
Publication of WO2009075102A1 publication Critical patent/WO2009075102A1/ja
Priority to US13/346,023 priority patent/US8726056B2/en

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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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline or look ahead using instruction pipelines
    • G06F9/3869—Implementation aspects, e.g. pipeline latches; pipeline synchronisation and clocking
    • 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
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • 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
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • 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
    • G06F1/325—Power saving in peripheral device
    • G06F1/3275—Power saving in memory, e.g. RAM, cache
    • 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 or look ahead
    • G06F9/3824—Operand accessing
    • 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 or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • 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)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Executing Machine-Instructions (AREA)
  • Advance Control (AREA)
  • Microcomputers (AREA)
  • Power Sources (AREA)

Abstract

　命令検出部（２３５）は、現在実行中の命令と、現在実行中の命令に後続する後続命令とのデータ依存関係に基づき、順序に関係なく実行できる後続命令が存在するか否かを検出し、クロック切り替え判断部（２３６）は、メモリストールの開始と終了との通知を受け取り、メモリストール発生中であるか否かを判定し、メモリストール発生中であると判定した場合、命令検出部（２３５）の検出結果に基づいて、ＣＰＵ（２００）に供給するクロック信号を低クロック信号（２３９）に切り替えるか、停止するかを判断し、クロック切り替え部（２３７）は、クロック切り替え判断部（２３６）による判断に従って、クロック信号を切り替える。この構成により、性能を低下させることなく、消費電力を低減することができる。
PCT/JP2008/003687 2007-12-13 2008-12-10 クロック制御装置、クロック制御方法、クロック制御プログラム及び集積回路 WO2009075102A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009545349A JP5388864B2 (ja) 2007-12-13 2008-12-10 クロック制御装置、クロック制御方法、クロック制御プログラム及び集積回路
CN2008800046506A CN101606135B (zh) 2007-12-13 2008-12-10 时钟控制装置、时钟控制方法、时钟控制程序及集成电路
US12/526,365 US8117474B2 (en) 2007-12-13 2008-12-10 CPU clock control during cache memory stall
US13/346,023 US8726056B2 (en) 2007-12-13 2012-01-09 Clock control device, clock control method, clock control program and integrated circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007321823 2007-12-13
JP2007-321823 2007-12-13

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/526,365 A-371-Of-International US8117474B2 (en) 2007-12-13 2008-12-10 CPU clock control during cache memory stall
US13/346,023 Division US8726056B2 (en) 2007-12-13 2012-01-09 Clock control device, clock control method, clock control program and integrated circuit

Publications (1)

Publication Number Publication Date
WO2009075102A1 true WO2009075102A1 (ja) 2009-06-18

Family

ID=40755350

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003687 WO2009075102A1 (ja) 2007-12-13 2008-12-10 クロック制御装置、クロック制御方法、クロック制御プログラム及び集積回路

Country Status (4)

Country Link
US (2) US8117474B2 (ja)
JP (1) JP5388864B2 (ja)
CN (1) CN101606135B (ja)
WO (1) WO2009075102A1 (ja)

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CN102999464A (zh) * 2011-09-08 2013-03-27 上海华虹集成电路有限责任公司 一种ahb总线时钟切换电路
JP2019527890A (ja) * 2016-07-22 2019-10-03 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． メモリリクエスト情報に基づきキャッシュメモリのクロック速度／電圧を設定する装置及び方法

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US8914650B2 (en) 2011-09-28 2014-12-16 Intel Corporation Dynamically adjusting power of non-core processor circuitry including buffer circuitry
US20130159673A1 (en) * 2011-12-15 2013-06-20 Advanced Micro Devices, Inc. Providing capacity guarantees for hardware transactional memory systems using fences
US9218018B2 (en) * 2012-09-14 2015-12-22 Oracle International Corporation Method and apparatus for distributed generation of multiple configurable ratioed clock domains within a high speed domain
US9087570B2 (en) 2013-01-17 2015-07-21 Micron Technology, Inc. Apparatuses and methods for controlling a clock signal provided to a clock tree
TWI508099B (zh) * 2013-01-28 2015-11-11 Phison Electronics Corp 工作時脈切換方法、記憶體控制器與記憶體儲存裝置
US9183904B2 (en) 2014-02-07 2015-11-10 Micron Technology, Inc. Apparatuses, memories, and methods for facilitating splitting of internal commands using a shared signal path
US20150370564A1 (en) * 2014-06-24 2015-12-24 Eli Kupermann Apparatus and method for adding a programmable short delay
CN105676944B (zh) * 2014-11-18 2019-03-26 龙芯中科技术有限公司 时钟网络的开关控制方法、装置及处理器
CN109582226A (zh) * 2018-11-14 2019-04-05 北京中电华大电子设计有限责任公司 一种高速存储访问逻辑结构及其控制方法

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JP3899784B2 (ja) 2000-06-19 2007-03-28 セイコーエプソン株式会社 クロック制御装置、半導体集積回路装置、マイクロコンピュータ及び電子機器
JP3880310B2 (ja) 2000-12-01 2007-02-14 シャープ株式会社 半導体集積回路
JP3742364B2 (ja) * 2002-06-28 2006-02-01 株式会社東芝 クロック周波数の制御方法および電子機器
JP4143907B2 (ja) * 2002-09-30 2008-09-03 ソニー株式会社 情報処理装置および方法、並びにプログラム

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102999464A (zh) * 2011-09-08 2013-03-27 上海华虹集成电路有限责任公司 一种ahb总线时钟切换电路
CN102999464B (zh) * 2011-09-08 2017-02-08 上海华虹集成电路有限责任公司 一种ahb总线时钟切换电路
JP2019527890A (ja) * 2016-07-22 2019-10-03 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． メモリリクエスト情報に基づきキャッシュメモリのクロック速度／電圧を設定する装置及び方法

Also Published As

Publication number Publication date
US8117474B2 (en) 2012-02-14
US20100325469A1 (en) 2010-12-23
CN101606135A (zh) 2009-12-16
US20120110366A1 (en) 2012-05-03
JP5388864B2 (ja) 2014-01-15
US8726056B2 (en) 2014-05-13
JPWO2009075102A1 (ja) 2011-04-28
CN101606135B (zh) 2012-03-28

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