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JPS57117042A - Interruption system of communication control device - Google Patents

Interruption system of communication control device

Info

Publication number
JPS57117042A
JPS57117042A JP56002226A JP222681A JPS57117042A JP S57117042 A JPS57117042 A JP S57117042A JP 56002226 A JP56002226 A JP 56002226A JP 222681 A JP222681 A JP 222681A JP S57117042 A JPS57117042 A JP S57117042A
Authority
JP
Japan
Prior art keywords
interruption
signal line
time
timer
constant interval
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
JP56002226A
Other languages
Japanese (ja)
Inventor
Hideji Ando
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 JP56002226A priority Critical patent/JPS57117042A/en
Publication of JPS57117042A publication Critical patent/JPS57117042A/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)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE:To simultaneously process interruption requests from plural terminals, by constituting so that even if an interruption request is received from one of plural terminals, this interruption processing is not executed, and installation time to the interruption processing is shifted by a constant interval of time. CONSTITUTION:A signal line 19 becomes ''1'' by an interruption request of a terminal A, but since an output signal from a timer 16 is ''0'', a signal line 20 remains ''0'', and a processing request to an interruption processing mechanism 15 is not generated. At this time, however, the timer 16 is set through an OR circuit 18 by ''1'' of the signal line 19, and even if interruption requests are generated from a terminal B and C before a constant interval of time passes, a signal line 22 remains ''0''. In this state, when the timer has passed a constant interval of time, a signal line 25 becomes ''1'', the signal lines 20, 22 and 24 become ''1'', and the interruption processings from A-C are executed simultaneously.
JP56002226A 1981-01-10 1981-01-10 Interruption system of communication control device Pending JPS57117042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002226A JPS57117042A (en) 1981-01-10 1981-01-10 Interruption system of communication control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002226A JPS57117042A (en) 1981-01-10 1981-01-10 Interruption system of communication control device

Publications (1)

Publication Number Publication Date
JPS57117042A true JPS57117042A (en) 1982-07-21

Family

ID=11523436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002226A Pending JPS57117042A (en) 1981-01-10 1981-01-10 Interruption system of communication control device

Country Status (1)

Country Link
JP (1) JPS57117042A (en)

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