JPS5679550A - Information transmission system - Google Patents

Information transmission system

Info

Publication number
JPS5679550A
JPS5679550A JP15599979A JP15599979A JPS5679550A JP S5679550 A JPS5679550 A JP S5679550A JP 15599979 A JP15599979 A JP 15599979A JP 15599979 A JP15599979 A JP 15599979A JP S5679550 A JPS5679550 A JP S5679550A
Authority
JP
Japan
Prior art keywords
data
transmission
break signal
interruption
slave station
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
JP15599979A
Other languages
Japanese (ja)
Inventor
Motoya Itani
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP15599979A priority Critical patent/JPS5679550A/en
Publication of JPS5679550A publication Critical patent/JPS5679550A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
    • G06F13/423—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus with synchronous protocol

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To simplify the transmission control and to decrease the transmission time, by using BREAK signal as the transmission control code for open indication of data train, and solving conventional problems caused from the agreement between the control code and data. CONSTITUTION:In transmitting data from the main station to the slave station, the main station transmits a BREAK signal 46 as shown in A at the start of transmission data, and suceedingly, transmitted address 15, output command 47, and data 16 are sequentially transmitted. At the reception side (slave station), the BREAK signal 46 is received, and the BREAK signal detection interruption is given to the processor 25 for each slave station, the start of transmission data train is detected and the transmission processing is made open. Further, the reception interruption control circuit 43 is controlled and the output is taken as logic ''1'', and the address 15 is received at the processor 25 through the next reception end interruption from the reception end interruption generating circuit 33.
JP15599979A 1979-11-30 1979-11-30 Information transmission system Pending JPS5679550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15599979A JPS5679550A (en) 1979-11-30 1979-11-30 Information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15599979A JPS5679550A (en) 1979-11-30 1979-11-30 Information transmission system

Publications (1)

Publication Number Publication Date
JPS5679550A true JPS5679550A (en) 1981-06-30

Family

ID=15618119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15599979A Pending JPS5679550A (en) 1979-11-30 1979-11-30 Information transmission system

Country Status (1)

Country Link
JP (1) JPS5679550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111045U (en) * 1987-01-09 1988-07-16

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120202A (en) * 1974-03-05 1975-09-20
JPS5260508A (en) * 1975-11-14 1977-05-19 Nippon System Kogyo Kk Frame synchronizing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120202A (en) * 1974-03-05 1975-09-20
JPS5260508A (en) * 1975-11-14 1977-05-19 Nippon System Kogyo Kk Frame synchronizing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111045U (en) * 1987-01-09 1988-07-16

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