JPS5567818A - Microcomputer system - Google Patents

Microcomputer system

Info

Publication number
JPS5567818A
JPS5567818A JP14100578A JP14100578A JPS5567818A JP S5567818 A JPS5567818 A JP S5567818A JP 14100578 A JP14100578 A JP 14100578A JP 14100578 A JP14100578 A JP 14100578A JP S5567818 A JPS5567818 A JP S5567818A
Authority
JP
Japan
Prior art keywords
circuit
computers
fault
connection
control
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
JP14100578A
Other languages
Japanese (ja)
Inventor
Norihiko Sugimoto
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 JP14100578A priority Critical patent/JPS5567818A/en
Publication of JPS5567818A publication Critical patent/JPS5567818A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To secure the continuation for the data transmission between the computers with no trouble by having a loop-type connection among plural number of computers and then giving the data transmission among two optional computers in case the connection control circuit has some fault.
CONSTITUTION: When detector circuit 19 detects the fault of connection control circuit 18, control auxiliary circuit 21 gives the control to matrix switch 22 in place of connection circuit 14. And selector 31 switches the control signal source to switch 22 from circuit 18 to 21. If circuit 18 has some fault, a loop-type connection is given among microcomputers 10W13 to secure transmission of the data to computers 10W13 in sequence. And the data is transmitted between two optional computers among them. As a result, the continuous data transmission is ensured with no trouble among the computers and with the comparatively simple constitution of the circuit although some fault may occur in circuit 18.
COPYRIGHT: (C)1980,JPO&Japio
JP14100578A 1978-11-17 1978-11-17 Microcomputer system Pending JPS5567818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14100578A JPS5567818A (en) 1978-11-17 1978-11-17 Microcomputer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14100578A JPS5567818A (en) 1978-11-17 1978-11-17 Microcomputer system

Publications (1)

Publication Number Publication Date
JPS5567818A true JPS5567818A (en) 1980-05-22

Family

ID=15281958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14100578A Pending JPS5567818A (en) 1978-11-17 1978-11-17 Microcomputer system

Country Status (1)

Country Link
JP (1) JPS5567818A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930339A (en) * 1982-07-28 1984-02-17 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Communication system
WO1992014321A1 (en) * 1991-01-31 1992-08-20 Fujitsu Limited Connectionless communication system
US5809012A (en) * 1991-01-31 1998-09-15 Fujitsu Limited Connectionless communication system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930339A (en) * 1982-07-28 1984-02-17 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Communication system
JPH0369219B2 (en) * 1982-07-28 1991-10-31 Intaanashonaru Bijinesu Mashiinzu Corp
WO1992014321A1 (en) * 1991-01-31 1992-08-20 Fujitsu Limited Connectionless communication system
AU677125B2 (en) * 1991-01-31 1997-04-10 Fujitsu Limited Connectionless communication system
US5689501A (en) * 1991-01-31 1997-11-18 Fujitsu Limited Connectionless communication system
US5809012A (en) * 1991-01-31 1998-09-15 Fujitsu Limited Connectionless communication system

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