JPS6413612A - Microcomputer - Google Patents

Microcomputer

Info

Publication number
JPS6413612A
JPS6413612A JP62169021A JP16902187A JPS6413612A JP S6413612 A JPS6413612 A JP S6413612A JP 62169021 A JP62169021 A JP 62169021A JP 16902187 A JP16902187 A JP 16902187A JP S6413612 A JPS6413612 A JP S6413612A
Authority
JP
Japan
Prior art keywords
oscillation
quartz
quartz oscillating
stop
control part
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.)
Pending
Application number
JP62169021A
Other languages
Japanese (ja)
Inventor
Akinobu Minagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62169021A priority Critical patent/JPS6413612A/en
Publication of JPS6413612A publication Critical patent/JPS6413612A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

  • Power Sources (AREA)
  • Microcomputers (AREA)

Abstract

PURPOSE:To minimize the power consumption by arbitrarily controlling oscillation and stop of quartz oscillating elements connected to plural quartz oscillating circuits to arbitrarily control the power consumption of a microcomputer and stopping all quartz oscillating elements. CONSTITUTION:Each quartz oscillating circuit 4 of a quartz oscillation control part 2 is provided with a one-bit register, and the circuit 4 is set to the oscillation state when contents of the register are '0', and the circuit 4 is set to the stop state when they are '1'. '1' is written in registers of quartz oscillating circuits whose oscillation should be stopped in the quartz oscillation control part 2 by an instruction designating part 1, and feedback resistances consisting of P channel transistors TRs and N channel TRs of selected quartz oscillating circuits 4 are turned off to stop oscillation of quartz oscillating elements. In case of restart of oscillation, '0' is written in registers of quartz oscillation control part 2 by a quartz oscillation start control part 3 to restart oscillation. Thus, oscillation and stop of all quartz oscillating elements connected to plural quartz oscillating circuits are arbitrarily controlled.
JP62169021A 1987-07-07 1987-07-07 Microcomputer Pending JPS6413612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62169021A JPS6413612A (en) 1987-07-07 1987-07-07 Microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62169021A JPS6413612A (en) 1987-07-07 1987-07-07 Microcomputer

Publications (1)

Publication Number Publication Date
JPS6413612A true JPS6413612A (en) 1989-01-18

Family

ID=15878858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62169021A Pending JPS6413612A (en) 1987-07-07 1987-07-07 Microcomputer

Country Status (1)

Country Link
JP (1) JPS6413612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6381204B1 (en) 1998-01-20 2002-04-30 Fujitsu Limited Power save mode control method and storage unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6381204B1 (en) 1998-01-20 2002-04-30 Fujitsu Limited Power save mode control method and storage unit

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