JPS54101237A - Malfunction prevention system for electronic circuit - Google Patents

Malfunction prevention system for electronic circuit

Info

Publication number
JPS54101237A
JPS54101237A JP791378A JP791378A JPS54101237A JP S54101237 A JPS54101237 A JP S54101237A JP 791378 A JP791378 A JP 791378A JP 791378 A JP791378 A JP 791378A JP S54101237 A JPS54101237 A JP S54101237A
Authority
JP
Japan
Prior art keywords
program counter
program
given
electronic circuit
prevention system
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
JP791378A
Other languages
Japanese (ja)
Inventor
Akira Nagano
Masaru Sakai
Kazuaki Urasaki
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP791378A priority Critical patent/JPS54101237A/en
Publication of JPS54101237A publication Critical patent/JPS54101237A/en
Pending legal-status Critical Current

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To prevent the malfunction, by restoring the program counter to the initial state when the time required for the operation designated with the program counter is more than a given value.
CONSTITUTION: The program counter 12 advances with the clock signal by step, it is given to the decoder 15 with the introduction of program memorized in ROM 14 sequentially, allowing to give the program to the control section 16. If the microcomputer 1 is in malfunction due to noise externally when it is performing a given operation and the program counter 12 performs circulation, the timer circuit 13 is not reset. When it reaches the specified value, it resets the program counter 12 and advances the operation again from the head address of ROM.
COPYRIGHT: (C)1979,JPO&Japio
JP791378A 1978-01-26 1978-01-26 Malfunction prevention system for electronic circuit Pending JPS54101237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP791378A JPS54101237A (en) 1978-01-26 1978-01-26 Malfunction prevention system for electronic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP791378A JPS54101237A (en) 1978-01-26 1978-01-26 Malfunction prevention system for electronic circuit

Publications (1)

Publication Number Publication Date
JPS54101237A true JPS54101237A (en) 1979-08-09

Family

ID=11678774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP791378A Pending JPS54101237A (en) 1978-01-26 1978-01-26 Malfunction prevention system for electronic circuit

Country Status (1)

Country Link
JP (1) JPS54101237A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688546A (en) * 1979-11-15 1981-07-18 Wabco Fahrzeugbremsen Gmbh Function monitor for programmable electronic switching circuit
JPS56127256A (en) * 1980-03-13 1981-10-05 Fujitsu Ten Ltd Fault monitering method of microcomputer
JPS57103558A (en) * 1980-11-28 1982-06-28 Fujitsu Ltd Runaway detecting circuit of processor
JPS5894035U (en) * 1981-12-15 1983-06-25 松下電工株式会社 CPU operation monitoring system
JPS5962227A (en) * 1982-09-30 1984-04-09 Toshiba Corp Radiotelephony device
JPS60147852A (en) * 1984-01-11 1985-08-03 Sharp Corp Lsi device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688546A (en) * 1979-11-15 1981-07-18 Wabco Fahrzeugbremsen Gmbh Function monitor for programmable electronic switching circuit
JPS56127256A (en) * 1980-03-13 1981-10-05 Fujitsu Ten Ltd Fault monitering method of microcomputer
JPS57103558A (en) * 1980-11-28 1982-06-28 Fujitsu Ltd Runaway detecting circuit of processor
JPS5894035U (en) * 1981-12-15 1983-06-25 松下電工株式会社 CPU operation monitoring system
JPS5962227A (en) * 1982-09-30 1984-04-09 Toshiba Corp Radiotelephony device
JPH056378B2 (en) * 1982-09-30 1993-01-26 Tokyo Shibaura Electric Co
JPS60147852A (en) * 1984-01-11 1985-08-03 Sharp Corp Lsi device

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