JPS6413612A - Microcomputer - Google Patents
MicrocomputerInfo
- 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
Links
- 239000010453 quartz Substances 0.000 abstract 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 13
- 230000010355 oscillation Effects 0.000 abstract 11
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.
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)
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 |
-
1987
- 1987-07-07 JP JP62169021A patent/JPS6413612A/en active Pending
Cited By (1)
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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