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JPS5583927A - Break signal detection system - Google Patents

Break signal detection system

Info

Publication number
JPS5583927A
JPS5583927A JP15876778A JP15876778A JPS5583927A JP S5583927 A JPS5583927 A JP S5583927A JP 15876778 A JP15876778 A JP 15876778A JP 15876778 A JP15876778 A JP 15876778A JP S5583927 A JPS5583927 A JP S5583927A
Authority
JP
Japan
Prior art keywords
break signal
cpu1
time frame
unit
semi
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
JP15876778A
Other languages
Japanese (ja)
Inventor
Hiroshi Hayashi
Kiyoshi Oi
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 JP15876778A priority Critical patent/JPS5583927A/en
Publication of JPS5583927A publication Critical patent/JPS5583927A/en
Pending legal-status Critical Current

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  • Computer And Data Communications (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE: To enable detection of the break signal in the two-wire and semi-double circuit by producing the time frame with every fixed time under data transfer via the conversion interface and then generating the break signal during that period.
CONSTITUTION: The two-wire and semi-double circuit is formed between CPU1 and terminal unit 7 via circuit control unit 2 plus conversion interfaces 3 and 6. Then the time frame is produced with every fixed time under data transfer via interface 3 and irrespective of the control given from CPU1. And unit 7 generates the break signal showing the interruption to CPU1 in the time frame mentioned above, and CPU1 detects the break signal sent from unit 7 within the time frame.
COPYRIGHT: (C)1980,JPO&Japio
JP15876778A 1978-12-19 1978-12-19 Break signal detection system Pending JPS5583927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15876778A JPS5583927A (en) 1978-12-19 1978-12-19 Break signal detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15876778A JPS5583927A (en) 1978-12-19 1978-12-19 Break signal detection system

Publications (1)

Publication Number Publication Date
JPS5583927A true JPS5583927A (en) 1980-06-24

Family

ID=15678885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15876778A Pending JPS5583927A (en) 1978-12-19 1978-12-19 Break signal detection system

Country Status (1)

Country Link
JP (1) JPS5583927A (en)

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