WO2010131104A3 - Method and device for controlling power-on of a processing circuit - Google Patents

Method and device for controlling power-on of a processing circuit Download PDF

Info

Publication number
WO2010131104A3
WO2010131104A3 PCT/IB2010/001099 IB2010001099W WO2010131104A3 WO 2010131104 A3 WO2010131104 A3 WO 2010131104A3 IB 2010001099 W IB2010001099 W IB 2010001099W WO 2010131104 A3 WO2010131104 A3 WO 2010131104A3
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
supply voltage
nominal
clock signal
processing circuit
Prior art date
Application number
PCT/IB2010/001099
Other languages
French (fr)
Other versions
WO2010131104A2 (en
Inventor
David Jacquet
Olivier Schneider
Original Assignee
Stmicroelectronics (Grenoble 2) Sas
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 Stmicroelectronics (Grenoble 2) Sas filed Critical Stmicroelectronics (Grenoble 2) Sas
Publication of WO2010131104A2 publication Critical patent/WO2010131104A2/en
Publication of WO2010131104A3 publication Critical patent/WO2010131104A3/en

Links

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
    • G06F1/3234—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
    • G06F1/3243—Power saving in microcontroller unit
    • 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
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
    • 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

Abstract

The present invention relates to a method for controlling the activation of a circuit (PRCU) clocked by a clock signal (CLK), the method comprising a phase of activating the circuit comprising simultaneous steps of increasing a supply voltage (Vs) of the circuit until a nominal supply voltage is reached, and of increasing a frequency of the clock signal until a nominal frequency is reached, the circuit being configured for operating within a certain range of supply voltage values and a certain range of clock signal frequencies below the nominal supply voltage and the nominal frequency.
PCT/IB2010/001099 2009-05-15 2010-05-12 Method and device for controlling power-on of a processing circuit WO2010131104A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR09/02355 2009-05-15
FR0902355 2009-05-15

Publications (2)

Publication Number Publication Date
WO2010131104A2 WO2010131104A2 (en) 2010-11-18
WO2010131104A3 true WO2010131104A3 (en) 2011-05-12

Family

ID=41284200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/001099 WO2010131104A2 (en) 2009-05-15 2010-05-12 Method and device for controlling power-on of a processing circuit

Country Status (1)

Country Link
WO (1) WO2010131104A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9806707B2 (en) 2014-02-07 2017-10-31 Qualcomm Incorporated Power distribution network (PDN) conditioner
US9785222B2 (en) 2014-12-22 2017-10-10 Qualcomm Incorporated Hybrid parallel regulator and power supply combination for improved efficiency and droop response with direct current driven output stage attached directly to the load
US9891646B2 (en) 2015-01-27 2018-02-13 Qualcomm Incorporated Capacitively-coupled hybrid parallel power supply

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0978781A2 (en) * 1998-08-03 2000-02-09 Lucent Technologies Inc. Power reduction in a multiprocessor digital signal processor
US20050144492A1 (en) * 2003-12-24 2005-06-30 Samsung Electronics Co., Ltd Processor system and method for reducing power consumption in idle mode

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0978781A2 (en) * 1998-08-03 2000-02-09 Lucent Technologies Inc. Power reduction in a multiprocessor digital signal processor
US20050144492A1 (en) * 2003-12-24 2005-06-30 Samsung Electronics Co., Ltd Processor system and method for reducing power consumption in idle mode

Also Published As

Publication number Publication date
WO2010131104A2 (en) 2010-11-18

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