JPS5466043A - Common-bus occupying system - Google Patents

Common-bus occupying system

Info

Publication number
JPS5466043A
JPS5466043A JP13217277A JP13217277A JPS5466043A JP S5466043 A JPS5466043 A JP S5466043A JP 13217277 A JP13217277 A JP 13217277A JP 13217277 A JP13217277 A JP 13217277A JP S5466043 A JPS5466043 A JP S5466043A
Authority
JP
Japan
Prior art keywords
bus
lines
controller
signal lines
permit
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
JP13217277A
Other languages
Japanese (ja)
Inventor
Takashi Sakai
Hiroshi Hayashi
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 JP13217277A priority Critical patent/JPS5466043A/en
Publication of JPS5466043A publication Critical patent/JPS5466043A/en
Pending legal-status Critical Current

Links

Landscapes

  • Multi Processors (AREA)
  • Bus Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To reduce the number of signal lines by providing signal lines between a bus controller and each central processor only for request-to-use and permit-to-use signals and by using the common bus for control information requiring several signal lines within allotted time.
CONSTITUTION: To one commun bus 11, several central processors 12-0 to 12-3 and main storage unit 13 are connected, and bus 11 and common bus controller 14 are connected together via one bundle of signal lines 21. In addition, respecitve processors 12-0, 12-2 and 12-3, and controller 14 are connected together via request- to-use lines 15-0 to 15-3, and permit-to-use lines 17-0 to 17-3 respectively. In this way although request-to-use lines and permit-to-use lines are provided between respective processors 12-0 to 12-3, and controller 14 only for request-to-use signals and permit-to-use signals, control information signals are transferred by using bundle of signal lines 21 provided between bus 11 and controller 14 according to a clock interval.
COPYRIGHT: (C)1979,JPO&Japio
JP13217277A 1977-11-05 1977-11-05 Common-bus occupying system Pending JPS5466043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13217277A JPS5466043A (en) 1977-11-05 1977-11-05 Common-bus occupying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13217277A JPS5466043A (en) 1977-11-05 1977-11-05 Common-bus occupying system

Publications (1)

Publication Number Publication Date
JPS5466043A true JPS5466043A (en) 1979-05-28

Family

ID=15075045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13217277A Pending JPS5466043A (en) 1977-11-05 1977-11-05 Common-bus occupying system

Country Status (1)

Country Link
JP (1) JPS5466043A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577653A (en) * 1980-06-17 1982-01-14 Matsushita Electric Ind Co Ltd Transmission control system
JPS57500266A (en) * 1980-03-10 1982-02-12
JPS57174735A (en) * 1981-04-15 1982-10-27 Pitney Bowes Inc Serial communication bus for remote terminal
JPS5868346A (en) * 1981-10-18 1983-04-23 Toshiba Corp Data transmission system
JPS592468A (en) * 1982-06-28 1984-01-09 Oki Electric Ind Co Ltd Communication system in multiprocessor system
JPS59168556A (en) * 1983-03-01 1984-09-22 エスジーエス―トムソン　マイクロエレクトロニクス，インコーポレイテッド Ic microprocessor
JPS60116246A (en) * 1983-11-28 1985-06-22 Fujitsu Ltd Data transfer control system
JPS60116059A (en) * 1983-11-29 1985-06-22 Fujitsu Ltd Bus controlling system
JPS60159960A (en) * 1984-01-31 1985-08-21 Toshiba Corp Communicating system between devices connected onto bus
JPH01293732A (en) * 1988-05-23 1989-11-27 Matsushita Electric Ind Co Ltd Home bus system and method for acquiring using right of information channel of home bus system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57500266A (en) * 1980-03-10 1982-02-12
JPS577653A (en) * 1980-06-17 1982-01-14 Matsushita Electric Ind Co Ltd Transmission control system
JPS57174735A (en) * 1981-04-15 1982-10-27 Pitney Bowes Inc Serial communication bus for remote terminal
JPS5868346A (en) * 1981-10-18 1983-04-23 Toshiba Corp Data transmission system
JPS592468A (en) * 1982-06-28 1984-01-09 Oki Electric Ind Co Ltd Communication system in multiprocessor system
JPS59168556A (en) * 1983-03-01 1984-09-22 エスジーエス―トムソン　マイクロエレクトロニクス，インコーポレイテッド Ic microprocessor
JPS60116246A (en) * 1983-11-28 1985-06-22 Fujitsu Ltd Data transfer control system
JPS60116059A (en) * 1983-11-29 1985-06-22 Fujitsu Ltd Bus controlling system
JPS60159960A (en) * 1984-01-31 1985-08-21 Toshiba Corp Communicating system between devices connected onto bus
JPH01293732A (en) * 1988-05-23 1989-11-27 Matsushita Electric Ind Co Ltd Home bus system and method for acquiring using right of information channel of home bus system

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