JP5020625B2 - インタフェース回路 - Google Patents
インタフェース回路 Download PDFInfo
- Publication number
- JP5020625B2 JP5020625B2 JP2006346261A JP2006346261A JP5020625B2 JP 5020625 B2 JP5020625 B2 JP 5020625B2 JP 2006346261 A JP2006346261 A JP 2006346261A JP 2006346261 A JP2006346261 A JP 2006346261A JP 5020625 B2 JP5020625 B2 JP 5020625B2
- Authority
- JP
- Japan
- Prior art keywords
- reference voltage
- memory
- memory controller
- interface circuit
- power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
-
- 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
- G06F1/3225—Monitoring of peripheral devices of memory 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
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/58—The condition being electrical
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Description
図4に本発明の1つの実施形態を示す。
図6に本発明の第2の実施形態を示す。
102、202、302、402、602 メモリコントローラ
103、203、204、303、304 参照電圧発生回路
405、406、607、608 参照電圧発生回路
306、605、606 電源切替回路
407、408、609 参照電圧切替回路
409、611 終端電圧発生回路
Claims (8)
- 第1の電源が供給された第1のデバイスと、前記第1の電源とは独立な第2の電源が供給された第2のデバイスとのインタフェース回路であって、
前記第1の電源から第1の参照電圧を作成する第1の参照電圧作成手段と、
前記第2の電源から第2の参照電圧を作成する第2の参照電圧作成手段と、
前記第1及び第2のデバイスに、前記第1または第2の参照電圧のそれぞれ異なる一方を切替入力する切替手段と
を備えることを特徴とするインタフェース回路。 - 前記第1及び第2のデバイスは、メモリと該メモリを制御するメモリコントローラであることを特徴とする請求項1に記載のインタフェース回路。
- 前記切替手段は、前記第1及び第2の電源がオンである場合に、前記メモリに前記第2の参照電圧を入力し、前記メモリコントローラに前記第1の参照電圧を入力することを特徴とする請求項2に記載のインタフェース回路。
- 前記切替手段は、前記第1の電源がオンで前記第2の電源がオフである場合に、前記メモリに前記第1の参照電圧を入力し、前記メモリコントローラに前記第2の参照電圧を入力することを特徴とする請求項2に記載のインタフェース回路。
- 第1または第2の電源が供給される第1のデバイスと、前記第1の電源のみが供給される第2のデバイスとのインタフェース回路であって、
前記第1のデバイスに供給される電源から第1の参照電圧を作成する第1の参照電圧作成手段と、
前記第2のデバイスに供給される電源から第2の参照電圧を作成する第2の参照電圧作成手段と、
前記第1のデバイスに前記第2の参照電圧を入力するとともに前記第2のデバイスに前記第1の参照電圧を入力するか、または前記第1のデバイスに前記第1の参照電圧を入力するとともに前記第2のデバイスへは参照電圧を入力しないようにする切替手段と
を備えることを特徴とするインタフェース回路。 - 前記第1及び第2のデバイスは、メモリと該メモリを制御するメモリコントローラであることを特徴とする請求項5に記載のインタフェース回路。
- 前記切替手段は、前記第1及び第2の電源がオンである場合に、前記メモリに前記第2の参照電圧を入力しながら前記メモリコントローラに前記第1の参照電圧を入力することを特徴とする請求項6に記載のインタフェース回路。
- 前記切替手段は、前記第1の電源がオンで前記第2の電源がオフである場合に、前記メモリに前記第1の参照電圧を入力し、前記メモリコントローラへは参照電圧を入力しないようにすることを特徴とする請求項6に記載のインタフェース回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006346261A JP5020625B2 (ja) | 2006-12-22 | 2006-12-22 | インタフェース回路 |
US11/959,171 US7881143B2 (en) | 2006-12-22 | 2007-12-18 | Interface circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006346261A JP5020625B2 (ja) | 2006-12-22 | 2006-12-22 | インタフェース回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008158775A JP2008158775A (ja) | 2008-07-10 |
JP5020625B2 true JP5020625B2 (ja) | 2012-09-05 |
Family
ID=39659616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006346261A Expired - Fee Related JP5020625B2 (ja) | 2006-12-22 | 2006-12-22 | インタフェース回路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7881143B2 (ja) |
JP (1) | JP5020625B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8370603B2 (en) | 2008-12-23 | 2013-02-05 | Apple Inc. | Architecture for address mapping of managed non-volatile memory |
US8321647B2 (en) | 2009-05-06 | 2012-11-27 | Apple Inc. | Multipage preparation commands for non-volatile memory systems |
US8438453B2 (en) | 2009-05-06 | 2013-05-07 | Apple Inc. | Low latency read operation for managed non-volatile memory |
US8495332B2 (en) * | 2009-07-24 | 2013-07-23 | Apple Inc. | Controller for optimizing throughput of read operations |
US8838877B2 (en) * | 2009-09-16 | 2014-09-16 | Apple Inc. | File system derived metadata for management of non-volatile memory |
US8489907B2 (en) * | 2009-09-16 | 2013-07-16 | Apple Inc. | Method of selective power cycling of components in a memory device independently by reducing power to a memory array or memory controller |
WO2015059974A1 (ja) * | 2013-10-24 | 2015-04-30 | ソニー株式会社 | 電子装置 |
JP6749058B2 (ja) * | 2017-02-17 | 2020-09-02 | 日精株式会社 | 駐車装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3195913B2 (ja) * | 1996-04-30 | 2001-08-06 | 株式会社東芝 | 半導体集積回路装置 |
US6052325A (en) * | 1998-05-22 | 2000-04-18 | Micron Technology, Inc. | Method and apparatus for translating signals |
KR100322546B1 (ko) | 2000-05-08 | 2002-03-18 | 윤종용 | 독립적인 전원 전압을 사용하는 메모리와 메모리 컨트롤러간의 인터페이스 시스템 |
JP2002083942A (ja) * | 2000-09-06 | 2002-03-22 | Matsushita Electric Ind Co Ltd | 半導体集積回路装置 |
US6433609B1 (en) * | 2001-11-19 | 2002-08-13 | International Business Machines Corporation | Double-gate low power SOI active clamp network for single power supply and multiple power supply applications |
JP4094370B2 (ja) * | 2002-07-31 | 2008-06-04 | エルピーダメモリ株式会社 | メモリモジュール及びメモリシステム |
US7016249B2 (en) * | 2003-06-30 | 2006-03-21 | Intel Corporation | Reference voltage generator |
-
2006
- 2006-12-22 JP JP2006346261A patent/JP5020625B2/ja not_active Expired - Fee Related
-
2007
- 2007-12-18 US US11/959,171 patent/US7881143B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080211303A1 (en) | 2008-09-04 |
US7881143B2 (en) | 2011-02-01 |
JP2008158775A (ja) | 2008-07-10 |
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