JPS6434025A - Electronic equipment - Google Patents

Electronic equipment

Info

Publication number
JPS6434025A
JPS6434025A JP62189956A JP18995687A JPS6434025A JP S6434025 A JPS6434025 A JP S6434025A JP 62189956 A JP62189956 A JP 62189956A JP 18995687 A JP18995687 A JP 18995687A JP S6434025 A JPS6434025 A JP S6434025A
Authority
JP
Japan
Prior art keywords
control circuit
microcomputer
data
external memory
power source
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
JP62189956A
Other languages
Japanese (ja)
Inventor
Kiyoshi Wagai
Shinji Yanagiya
Mitsushi Shiono
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.)
Toshiba Corp
Toshiba Telecommunication System Engineering Corp
Original Assignee
Toshiba Corp
Toshiba Telecommunication System Engineering Corp
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 Toshiba Corp, Toshiba Telecommunication System Engineering Corp filed Critical Toshiba Corp
Priority to JP62189956A priority Critical patent/JPS6434025A/en
Publication of JPS6434025A publication Critical patent/JPS6434025A/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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

PURPOSE:To exactly hold a stored content without being affected by the ON/ OFF switching of a power source, by setting a state where no change of a data signal on a data bus on a control means side affects on the stored content of a storage means at the time of stopping the power supply to the control means. CONSTITUTION:A power source control circuit 27, at the time of detecting the turning OFF of a switch 26, informs the fact to a microcomputer 22. The microcomputer 22 holds it by itself, and sends required data to an external memory 21 via an interface control circuit 24 hereafter, and stores the data in the external memory 21, The power source control circuit 27 sets the interface control circuit 24 at the state where no change of the data signal on the data bus on the microcomputer 22 side affects on the stored content of the external memory 21. After that, the power source control circuit 27 stops the the power supply to the microcomputer 22. In such a way, it is possible to prevent the data held in the external memory 21 once from being erased.
JP62189956A 1987-07-29 1987-07-29 Electronic equipment Pending JPS6434025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62189956A JPS6434025A (en) 1987-07-29 1987-07-29 Electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62189956A JPS6434025A (en) 1987-07-29 1987-07-29 Electronic equipment

Publications (1)

Publication Number Publication Date
JPS6434025A true JPS6434025A (en) 1989-02-03

Family

ID=16250005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62189956A Pending JPS6434025A (en) 1987-07-29 1987-07-29 Electronic equipment

Country Status (1)

Country Link
JP (1) JPS6434025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629902A (en) * 1992-07-13 1994-02-04 Fujitsu Ltd Mobile radio equipment power supply on/off control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629902A (en) * 1992-07-13 1994-02-04 Fujitsu Ltd Mobile radio equipment power supply on/off control circuit

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