JPS6413253A - Floppy disk driving device - Google Patents

Floppy disk driving device

Info

Publication number
JPS6413253A
JPS6413253A JP16911787A JP16911787A JPS6413253A JP S6413253 A JPS6413253 A JP S6413253A JP 16911787 A JP16911787 A JP 16911787A JP 16911787 A JP16911787 A JP 16911787A JP S6413253 A JPS6413253 A JP S6413253A
Authority
JP
Japan
Prior art keywords
signal
cpu
turned
floppy disk
disk
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
JP16911787A
Other languages
Japanese (ja)
Inventor
Satoshi Tsuruta
Tatsuya Shidara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16911787A priority Critical patent/JPS6413253A/en
Publication of JPS6413253A publication Critical patent/JPS6413253A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To extend the service life of a disk and to reduce a power consumption by providing the function automatically stopping the spindle motor for rotating a disk at the time when non-operation state reaches a fixed time on the timer circuit provided inside a control circuit. CONSTITUTION:When a CPU 1 gains access to a floppy driving controller 6, a turned-ON selective signal is reset to a timer circuit 12 and with the access completion, the reset is released and unless a signal 13 is turned ON until the number of counts becomes of a set number an interruption signal 14 into the CPU 1 is turned ON. The CPU 1 starts an interruption processing by receiving it, turning OFF a motor-ON signal 11 via a parallel interface PIO 7 and stopping the spindle motor inside a floppy disk drive 10. The efficiency reduction of a software is eliminated, the service life of a floppy disk is extended and power consumption is reduced.
JP16911787A 1987-07-07 1987-07-07 Floppy disk driving device Pending JPS6413253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16911787A JPS6413253A (en) 1987-07-07 1987-07-07 Floppy disk driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16911787A JPS6413253A (en) 1987-07-07 1987-07-07 Floppy disk driving device

Publications (1)

Publication Number Publication Date
JPS6413253A true JPS6413253A (en) 1989-01-18

Family

ID=15880613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16911787A Pending JPS6413253A (en) 1987-07-07 1987-07-07 Floppy disk driving device

Country Status (1)

Country Link
JP (1) JPS6413253A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452277A (en) * 1993-12-30 1995-09-19 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
US5682273A (en) * 1995-06-30 1997-10-28 International Business Machines Corporation Disk drive for portable computer with adaptive demand-driven power management
US5954820A (en) * 1997-09-26 1999-09-21 International Business Machines Corporation Portable computer with adaptive demand-driven power management

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452277A (en) * 1993-12-30 1995-09-19 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
US5521896A (en) * 1993-12-30 1996-05-28 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
US5544138A (en) * 1993-12-30 1996-08-06 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
US5682273A (en) * 1995-06-30 1997-10-28 International Business Machines Corporation Disk drive for portable computer with adaptive demand-driven power management
US5954820A (en) * 1997-09-26 1999-09-21 International Business Machines Corporation Portable computer with adaptive demand-driven power management

Similar Documents

Publication Publication Date Title
TW227053B (en) Power management system for a computer
JPS5644133A (en) Auto reverse unit with program searching mechanism
HK57296A (en) Interrupt test circuit for microprocessor system
JPS54146361A (en) Elevator driving apparatus for use at the time of interruption of power supply
JPS6449162A (en) Floppy disk driving device
JPS6410461A (en) Motor controller for floppy disk
JP2985985B2 (en) Battery voltage monitoring circuit and battery voltage monitoring method
JP2580847B2 (en) Magnetic disk drive
JPS5751479A (en) Electronic typewriter
JPS56103020A (en) Transfer device for unattended carrier
EP0177224A3 (en) Disc drives
JPS56101675A (en) Magnetic disk device
JPS6238564A (en) Magnetic disc device
JPS6433781A (en) Magnetic disk device
JPH079244Y2 (en) Ejector motor control circuit for floppy disk drive
JPS62130009U (en)
JPS5771557A (en) Recording medium driving device
JPH026506Y2 (en)
JPS6462864A (en) Floppy disk drive
JPS6313422U (en)
JPS6442016A (en) Magnetic tape device
JPS5467650A (en) Power interruption recovery controller
JPS6481488A (en) Power supply control system for fan for exchange section
JPH0296651U (en)
JPS553847A (en) Automatic controlling method of dust supply to dust treatment apparatus