JPS5440001A - Transmission request detecting system - Google Patents

Transmission request detecting system

Info

Publication number
JPS5440001A
JPS5440001A JP10740877A JP10740877A JPS5440001A JP S5440001 A JPS5440001 A JP S5440001A JP 10740877 A JP10740877 A JP 10740877A JP 10740877 A JP10740877 A JP 10740877A JP S5440001 A JPS5440001 A JP S5440001A
Authority
JP
Japan
Prior art keywords
transmission request
detecting system
input
request detecting
output device
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
JP10740877A
Other languages
Japanese (ja)
Inventor
Yasuo Yamaguchi
Hiroyuki Kojima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10740877A priority Critical patent/JPS5440001A/en
Publication of JPS5440001A publication Critical patent/JPS5440001A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To secure an easy and high-efficiency detection for the transmission request given from plural units of input/output devices by accepting the transmission request through the control unit for the input/output device which transmits the constant polarity signal from each input/output device for more than a fixed time.
JP10740877A 1977-09-06 1977-09-06 Transmission request detecting system Pending JPS5440001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10740877A JPS5440001A (en) 1977-09-06 1977-09-06 Transmission request detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10740877A JPS5440001A (en) 1977-09-06 1977-09-06 Transmission request detecting system

Publications (1)

Publication Number Publication Date
JPS5440001A true JPS5440001A (en) 1979-03-28

Family

ID=14458382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10740877A Pending JPS5440001A (en) 1977-09-06 1977-09-06 Transmission request detecting system

Country Status (1)

Country Link
JP (1) JPS5440001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658347A (en) * 1979-10-18 1981-05-21 Omron Tateisi Electronics Co Data transmission method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658347A (en) * 1979-10-18 1981-05-21 Omron Tateisi Electronics Co Data transmission method

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