JPS57168353A - Interruption input failure detecting system - Google Patents

Interruption input failure detecting system

Info

Publication number
JPS57168353A
JPS57168353A JP56053037A JP5303781A JPS57168353A JP S57168353 A JPS57168353 A JP S57168353A JP 56053037 A JP56053037 A JP 56053037A JP 5303781 A JP5303781 A JP 5303781A JP S57168353 A JPS57168353 A JP S57168353A
Authority
JP
Japan
Prior art keywords
and2
signal
circuit and1
inputted
fault
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
JP56053037A
Other languages
Japanese (ja)
Inventor
Haruki Hagiwara
Keizo Tejima
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.)
Fuji Electric Co Ltd
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom Corp
Fuji Electric Manufacturing Co 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 Fuji Electric Co Ltd, Fuji Facom Corp, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56053037A priority Critical patent/JPS57168353A/en
Publication of JPS57168353A publication Critical patent/JPS57168353A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE:To obtain a computer which is strong and high in safety, and is capable of quickly coping with without exerting influence on the whole computer system, by detaching a faulty part, in case when a fault has occurred in an interruption signal receiving circuit. CONSTITUTION:When an interrupting signal (factor 1 or 2) is inputted, an FF 1 or an FF 2 is set, said signal is inputted to one of an AND circuit AND1 or AND2, an overflow signal of a counter is applied to the other, and an output of one of them is transferred to an input terminal iRT of a CPU. In this state, in case when a fault, etc. have occurred, the FF 1 or the FF 2 are always turned on, and the terminal iRT of the CPU from the circuit AND1 or AND2 remains turned-on. As a result, only an interruption processing block is executed repeatedly, a counter 1 or 2 overflows, an output of the circuit AND1 or AND2 becomes ''0'', and the processing is always returned to an exeuction program. Accordingly, the factor 1 or 2 is detached from the system.
JP56053037A 1981-04-10 1981-04-10 Interruption input failure detecting system Pending JPS57168353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56053037A JPS57168353A (en) 1981-04-10 1981-04-10 Interruption input failure detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56053037A JPS57168353A (en) 1981-04-10 1981-04-10 Interruption input failure detecting system

Publications (1)

Publication Number Publication Date
JPS57168353A true JPS57168353A (en) 1982-10-16

Family

ID=12931679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56053037A Pending JPS57168353A (en) 1981-04-10 1981-04-10 Interruption input failure detecting system

Country Status (1)

Country Link
JP (1) JPS57168353A (en)

Similar Documents

Publication Publication Date Title
JPS55131852A (en) Fail-safe unit of control computer
JPS57168353A (en) Interruption input failure detecting system
EP0041809A2 (en) Digital phase sequence detector
JPS5713567A (en) Multiprocessor system
JPS562047A (en) Debugging unit
JPS5771031A (en) Direct memory access coupling circuit
JPS5543687A (en) Process system at fault time of power source
JPS5667458A (en) Data error detecting system
JPS5696338A (en) Interrupt processing method of microcomputer
JPS55150051A (en) Fault detecting system
JPS5785151A (en) Error recovery system of logical device
JPS54103976A (en) Logical circuit diagnoser
JPS54138353A (en) Data check circuit
JPS56121170A (en) Duplex system of computer
JPS5644945A (en) Power failure processing system of data processing unit
JPS5468136A (en) Inspection unit for logic circuit
JPS575134A (en) Automatic resetting circuit system
JPS5668030A (en) Logic circuit
JPS57189254A (en) Backup circuit for troubled part of control electronic computer
JPS5685950A (en) Transmission line switching system
JPS56145438A (en) Detector for fault of microcomputer system
JPS57157364A (en) Fault detecting circuit of electronic computer
JPS55124849A (en) Error detection control system
JPS6481540A (en) Reception signal switching device
JPS5659333A (en) Peripheral equipment control system