JPS57106966A - Error check system for data transmission bus - Google Patents

Error check system for data transmission bus

Info

Publication number
JPS57106966A
JPS57106966A JP55183481A JP18348180A JPS57106966A JP S57106966 A JPS57106966 A JP S57106966A JP 55183481 A JP55183481 A JP 55183481A JP 18348180 A JP18348180 A JP 18348180A JP S57106966 A JPS57106966 A JP S57106966A
Authority
JP
Japan
Prior art keywords
bus
data transmission
driver
data
transmission bus
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
JP55183481A
Other languages
Japanese (ja)
Inventor
Takashi Ii
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 JP55183481A priority Critical patent/JPS57106966A/en
Publication of JPS57106966A publication Critical patent/JPS57106966A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Bus Control (AREA)

Abstract

PURPOSE:To detect malfunction on a transmission side by comparing input data to bus drivers with actual data on a data transmission bus to which outputs of drivers are connected in common. CONSTITUTION:Bit D0 among data bits D0-Dn of an input signal to a driver DV, and an output signal dot-ORed on a BUS are compared mutually by an exclusive OR EOR gate and when their dissidence is detected, a signal OE with logic 1 is outputted to set a flip-flop FF. Consequently, a BUSOFF falls and a BUSCON also falls to inhibit outputting operation. Therefore, the malfunction of the driver DV is discriminated to minimize the deterioration and destruction of a driver element.
JP55183481A 1980-12-24 1980-12-24 Error check system for data transmission bus Pending JPS57106966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55183481A JPS57106966A (en) 1980-12-24 1980-12-24 Error check system for data transmission bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55183481A JPS57106966A (en) 1980-12-24 1980-12-24 Error check system for data transmission bus

Publications (1)

Publication Number Publication Date
JPS57106966A true JPS57106966A (en) 1982-07-03

Family

ID=16136558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55183481A Pending JPS57106966A (en) 1980-12-24 1980-12-24 Error check system for data transmission bus

Country Status (1)

Country Link
JP (1) JPS57106966A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990127A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Information processor
JPS59160242A (en) * 1983-02-28 1984-09-10 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Self tester for driver circuit
JPS61107454A (en) * 1984-10-30 1986-05-26 Toshiba Corp Bus lock prevention system
JPH03132846A (en) * 1989-10-19 1991-06-06 Koufu Nippon Denki Kk Bus conflict detection circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990127A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Information processor
JPS59160242A (en) * 1983-02-28 1984-09-10 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Self tester for driver circuit
JPH0127454B2 (en) * 1983-02-28 1989-05-29 Intaanashonaru Bijinesu Mashiinzu Corp
JPS61107454A (en) * 1984-10-30 1986-05-26 Toshiba Corp Bus lock prevention system
JPH03132846A (en) * 1989-10-19 1991-06-06 Koufu Nippon Denki Kk Bus conflict detection circuit

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