JPS5750035A - Generation device for constant time interruption signal - Google Patents

Generation device for constant time interruption signal

Info

Publication number
JPS5750035A
JPS5750035A JP12461180A JP12461180A JPS5750035A JP S5750035 A JPS5750035 A JP S5750035A JP 12461180 A JP12461180 A JP 12461180A JP 12461180 A JP12461180 A JP 12461180A JP S5750035 A JPS5750035 A JP S5750035A
Authority
JP
Japan
Prior art keywords
constant time
receiving
interruption
data
clock signal
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.)
Granted
Application number
JP12461180A
Other languages
Japanese (ja)
Other versions
JPS6214867B2 (en
Inventor
Toshio Furuhashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12461180A priority Critical patent/JPS5750035A/en
Publication of JPS5750035A publication Critical patent/JPS5750035A/en
Publication of JPS6214867B2 publication Critical patent/JPS6214867B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4825—Interrupt from clock, e.g. time of day

Abstract

PURPOSE:To make a device small-sized and to raise its reliability, by receiving a clock signal of an input/output port provided on a microcomputer, by a data receiving part, and using it as a constant time interruption signal so that a timer interruption can be executed at every constant time, without installing the hardware additionally. CONSTITUTION:A clock signal outputted from a clock generation part I/O2.SCLK of an I/O port 2 provided on a microcomputer 30 is inputted to a receiving data input terminal L/O3.RDARA, also is converted to a parallel data by a receiving data shift register, and is supplied to a receiving data register. This clock signal is regarded as an asynchronous series data, and after a specific number of clocks has been received, a receiving end interruption is generated. In this way, the computer 30 is interrupted at every constant time a control task is mult-operated, therefore, a time interruption at every constant time is executed without installing a special hardware additionally, a device is made small-sized and its reliability is raised.
JP12461180A 1980-09-10 1980-09-10 Generation device for constant time interruption signal Granted JPS5750035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12461180A JPS5750035A (en) 1980-09-10 1980-09-10 Generation device for constant time interruption signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12461180A JPS5750035A (en) 1980-09-10 1980-09-10 Generation device for constant time interruption signal

Publications (2)

Publication Number Publication Date
JPS5750035A true JPS5750035A (en) 1982-03-24
JPS6214867B2 JPS6214867B2 (en) 1987-04-04

Family

ID=14889707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12461180A Granted JPS5750035A (en) 1980-09-10 1980-09-10 Generation device for constant time interruption signal

Country Status (1)

Country Link
JP (1) JPS5750035A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01209584A (en) * 1988-02-17 1989-08-23 Nippon Denso Co Ltd Fingerprint collating device
JPH0220114A (en) * 1988-05-09 1990-01-23 Thomson Consumer Electron Inc Tuner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01209584A (en) * 1988-02-17 1989-08-23 Nippon Denso Co Ltd Fingerprint collating device
JPH0220114A (en) * 1988-05-09 1990-01-23 Thomson Consumer Electron Inc Tuner

Also Published As

Publication number Publication date
JPS6214867B2 (en) 1987-04-04

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