JPS5475907A - Data bus system - Google Patents

Data bus system

Info

Publication number
JPS5475907A
JPS5475907A JP14342377A JP14342377A JPS5475907A JP S5475907 A JPS5475907 A JP S5475907A JP 14342377 A JP14342377 A JP 14342377A JP 14342377 A JP14342377 A JP 14342377A JP S5475907 A JPS5475907 A JP S5475907A
Authority
JP
Japan
Prior art keywords
terminal
data
time
flag
transmission
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.)
Granted
Application number
JP14342377A
Other languages
Japanese (ja)
Other versions
JPS6050094B2 (en
Inventor
Akira Mabukuro
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 JP14342377A priority Critical patent/JPS6050094B2/en
Publication of JPS5475907A publication Critical patent/JPS5475907A/en
Publication of JPS6050094B2 publication Critical patent/JPS6050094B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/427—Loop networks with decentralised control
    • H04L12/43—Loop networks with decentralised control with synchronous transmission, e.g. time division multiplex [TDM], slotted rings

Landscapes

  • Small-Scale Networks (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To prevent collosion by means of simple control by providing a flag sequence function in the transmitting side. CONSTITUTION:Data terminals A to E are connected through the common data bus and each terminal receives all data of time solot assigned to itself. In case of transmission, the terminal sets a flag in the time slot of the other terminal; only when, after 1 frame, the terminal with higher priority then the terminal itself does not require transmission to the other terminal, the terminal itself transmits data to the other terminal. After the data trasmission is finished, the flag is set to 0 and the succeeding requirement of data transmission can be received from the time when all flags set in the time solt are set to 0 at the time of preceeding requirement. Therefore, collosion of data can be prevented.
JP14342377A 1977-11-29 1977-11-29 Data bus method Expired JPS6050094B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14342377A JPS6050094B2 (en) 1977-11-29 1977-11-29 Data bus method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14342377A JPS6050094B2 (en) 1977-11-29 1977-11-29 Data bus method

Publications (2)

Publication Number Publication Date
JPS5475907A true JPS5475907A (en) 1979-06-18
JPS6050094B2 JPS6050094B2 (en) 1985-11-06

Family

ID=15338387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14342377A Expired JPS6050094B2 (en) 1977-11-29 1977-11-29 Data bus method

Country Status (1)

Country Link
JP (1) JPS6050094B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007196723A (en) * 2006-01-23 2007-08-09 Toyota Motor Corp Resource management device, resource load control device, resource management system and resource management method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007196723A (en) * 2006-01-23 2007-08-09 Toyota Motor Corp Resource management device, resource load control device, resource management system and resource management method

Also Published As

Publication number Publication date
JPS6050094B2 (en) 1985-11-06

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