JPS6486224A - Standby device for microcomputer - Google Patents

Standby device for microcomputer

Info

Publication number
JPS6486224A
JPS6486224A JP62244513A JP24451387A JPS6486224A JP S6486224 A JPS6486224 A JP S6486224A JP 62244513 A JP62244513 A JP 62244513A JP 24451387 A JP24451387 A JP 24451387A JP S6486224 A JPS6486224 A JP S6486224A
Authority
JP
Japan
Prior art keywords
control part
cpu
peripheral hardware
peripheral
hardware
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
JP62244513A
Other languages
Japanese (ja)
Inventor
Rika Yabui
Hideo Abe
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62244513A priority Critical patent/JPS6486224A/en
Publication of JPS6486224A publication Critical patent/JPS6486224A/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

  • Microcomputers (AREA)
  • Power Sources (AREA)

Abstract

PURPOSE:To make a power consumption into a necessary minimum by stopping independently respective peripheral hardwares except a CPU and supplying a system clock only to the peripheral hardware of the necessary minimum when a program is executed. CONSTITUTION:The device is composed of a program part 101, a CPU 100 and a peripheral hardware 105 and at a CPU 100, a decoder part 102, a control part 103 and a clock control part 104 are provided. At the peripheral hardware 105, peripheral hardwares A-D and a control part 106 are provided. The device has an HLT instruction input signal 103-1 outputted from the control part 103 to the peripheral hardware control part 106 and stopping signals 106-1-4 outputted by the control part 106 for respective peripheral hardwares A-D. Thus, at the time of stopping, the CPU 100 and the non-prescribed peripheral hardware stop an action and only the prescribed hardware is operated. As a result, the power consumption of a system goes to the necessary minimum one.
JP62244513A 1987-09-28 1987-09-28 Standby device for microcomputer Pending JPS6486224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62244513A JPS6486224A (en) 1987-09-28 1987-09-28 Standby device for microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62244513A JPS6486224A (en) 1987-09-28 1987-09-28 Standby device for microcomputer

Publications (1)

Publication Number Publication Date
JPS6486224A true JPS6486224A (en) 1989-03-30

Family

ID=17119796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62244513A Pending JPS6486224A (en) 1987-09-28 1987-09-28 Standby device for microcomputer

Country Status (1)

Country Link
JP (1) JPS6486224A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0876876A (en) * 1994-08-31 1996-03-22 Nec Corp Clock supply control circuit of microprocessor
US5548765A (en) * 1990-08-28 1996-08-20 Seiko Epson Corporation Power saving display subsystem for portable computers
WO2001093051A1 (en) * 2000-05-30 2001-12-06 Matsushita Electric Industrial Co., Ltd. Data processing system, and data processing method
US7007181B2 (en) 2002-04-23 2006-02-28 Oki Electric Industry Co., Ltd. Microcontroller
US7058842B2 (en) * 2002-01-30 2006-06-06 Oki Electric Industry Co., Ltd. Microcontroller with multiple function blocks and clock signal control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625358B2 (en) * 1979-02-27 1987-02-04 Tokyo Shibaura Electric Co
JPS62145458A (en) * 1985-12-20 1987-06-29 Nec Corp Microcomputer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625358B2 (en) * 1979-02-27 1987-02-04 Tokyo Shibaura Electric Co
JPS62145458A (en) * 1985-12-20 1987-06-29 Nec Corp Microcomputer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548765A (en) * 1990-08-28 1996-08-20 Seiko Epson Corporation Power saving display subsystem for portable computers
JPH0876876A (en) * 1994-08-31 1996-03-22 Nec Corp Clock supply control circuit of microprocessor
WO2001093051A1 (en) * 2000-05-30 2001-12-06 Matsushita Electric Industrial Co., Ltd. Data processing system, and data processing method
US7058842B2 (en) * 2002-01-30 2006-06-06 Oki Electric Industry Co., Ltd. Microcontroller with multiple function blocks and clock signal control
US7007181B2 (en) 2002-04-23 2006-02-28 Oki Electric Industry Co., Ltd. Microcontroller

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