JPS5467344A - Selection system for processor - Google Patents

Selection system for processor

Info

Publication number
JPS5467344A
JPS5467344A JP13351277A JP13351277A JPS5467344A JP S5467344 A JPS5467344 A JP S5467344A JP 13351277 A JP13351277 A JP 13351277A JP 13351277 A JP13351277 A JP 13351277A JP S5467344 A JPS5467344 A JP S5467344A
Authority
JP
Japan
Prior art keywords
terminal unit
units
processor
processors
sets
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
JP13351277A
Other languages
Japanese (ja)
Inventor
Akiyasu Horinaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13351277A priority Critical patent/JPS5467344A/en
Publication of JPS5467344A publication Critical patent/JPS5467344A/en
Pending legal-status Critical Current

Links

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  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE: To enable to separate the failed part only from other parts onfialure without attecting on others, by constituting one processor so that it only is connectable to the terminal unit, when simultaneous delivery request is taken place from two sets of processors.
CONSTITUTION: In the system using two sets of processors 1, 2 which use one terminal unit 5 with he selection circuits 3 and 4 in time sharing manner, when the transfer request signal 11 or 21 from the units 1, 2 is inputted, bistable circuit consisting of OR gates 32, 42 and NAND gates 33, 43 connected to the pulse generating circuits 31 and 41 generating the output to connect the corresponding units 1, 2 to the terminal unit 5 is provided. Further, in separating the corresponded part of one bistable circuit, the switches 34, 44 operated with the output of the bistble circuit and connecting other units 1, 2 to the terminal unit 5 are respectively provided.
COPYRIGHT: (C)1979,JPO&Japio
JP13351277A 1977-11-09 1977-11-09 Selection system for processor Pending JPS5467344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13351277A JPS5467344A (en) 1977-11-09 1977-11-09 Selection system for processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13351277A JPS5467344A (en) 1977-11-09 1977-11-09 Selection system for processor

Publications (1)

Publication Number Publication Date
JPS5467344A true JPS5467344A (en) 1979-05-30

Family

ID=15106503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13351277A Pending JPS5467344A (en) 1977-11-09 1977-11-09 Selection system for processor

Country Status (1)

Country Link
JP (1) JPS5467344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597228U (en) * 1982-07-06 1984-01-18 マツダ株式会社 engine intake system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152274U (en) * 1974-10-18 1976-04-21
JPS5148234A (en) * 1974-10-23 1976-04-24 Yokogawa Electric Works Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152274U (en) * 1974-10-18 1976-04-21
JPS5148234A (en) * 1974-10-23 1976-04-24 Yokogawa Electric Works Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597228U (en) * 1982-07-06 1984-01-18 マツダ株式会社 engine intake system

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