JPS5773433A - Fault detecting system for interruption request of input/output device - Google Patents

Fault detecting system for interruption request of input/output device

Info

Publication number
JPS5773433A
JPS5773433A JP55148630A JP14863080A JPS5773433A JP S5773433 A JPS5773433 A JP S5773433A JP 55148630 A JP55148630 A JP 55148630A JP 14863080 A JP14863080 A JP 14863080A JP S5773433 A JPS5773433 A JP S5773433A
Authority
JP
Japan
Prior art keywords
input
output device
interruption request
fault
interruption
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
JP55148630A
Other languages
Japanese (ja)
Inventor
Kikuo Kasai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55148630A priority Critical patent/JPS5773433A/en
Publication of JPS5773433A publication Critical patent/JPS5773433A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To previously prevent the breakdown of a detecting system, by detecting a fault for interruption request of an input/output device and then isolating the faulty input/output device form the channel. CONSTITUTION:If the interruption request is consecutively given by the fault of an input/output device, the interruption process routine is continued also at the side of the channel CH to continuously transmit the interruption permission signal. As a result, a counter 5 exceeds immediately the set value of a setter to produce a fault signal. Thus an input data bus Bi is cut off to make it impossible to supply the interruption request to the side of the channel CH. At the same time, an alarm device 8 is actuated with the fault signal.
JP55148630A 1980-10-23 1980-10-23 Fault detecting system for interruption request of input/output device Pending JPS5773433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55148630A JPS5773433A (en) 1980-10-23 1980-10-23 Fault detecting system for interruption request of input/output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55148630A JPS5773433A (en) 1980-10-23 1980-10-23 Fault detecting system for interruption request of input/output device

Publications (1)

Publication Number Publication Date
JPS5773433A true JPS5773433A (en) 1982-05-08

Family

ID=15457078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55148630A Pending JPS5773433A (en) 1980-10-23 1980-10-23 Fault detecting system for interruption request of input/output device

Country Status (1)

Country Link
JP (1) JPS5773433A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164202U (en) * 1984-04-05 1985-10-31 ナイルス部品株式会社 Compensation circuit for vehicle load control device
JPS60243751A (en) * 1984-05-17 1985-12-03 Meidensha Electric Mfg Co Ltd Supervisory circuit of incorrect interruption in computer
JPH031240A (en) * 1989-05-30 1991-01-07 Nec Corp Interruption control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164202U (en) * 1984-04-05 1985-10-31 ナイルス部品株式会社 Compensation circuit for vehicle load control device
JPS60243751A (en) * 1984-05-17 1985-12-03 Meidensha Electric Mfg Co Ltd Supervisory circuit of incorrect interruption in computer
JPH031240A (en) * 1989-05-30 1991-01-07 Nec Corp Interruption control system

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