JPS5723129A - Information switching device - Google Patents

Information switching device

Info

Publication number
JPS5723129A
JPS5723129A JP9858980A JP9858980A JPS5723129A JP S5723129 A JPS5723129 A JP S5723129A JP 9858980 A JP9858980 A JP 9858980A JP 9858980 A JP9858980 A JP 9858980A JP S5723129 A JPS5723129 A JP S5723129A
Authority
JP
Japan
Prior art keywords
input
data
output
received data
iob12
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
JP9858980A
Other languages
Japanese (ja)
Inventor
Makoto Kimura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9858980A priority Critical patent/JPS5723129A/en
Publication of JPS5723129A publication Critical patent/JPS5723129A/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
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system

Abstract

PURPOSE:To decrease the number of physical interface lines extending to an input and output monitoring device, by providing an information switching device between input and output circuit terminal parts and the input and output monitoring device. CONSTITUTION:On receiving data from an input and output terminal part IOA11 or input and output terminal part IOB12, a reception control data insertion part 31 or 32 inserts a shift-in or shift-out control character before input data. Received data is led to a competition circuit part 33 and priority is given to either one of the IOA11 and IOB12, which has sent the data earlier, to open the gate of the priority side, thereby sending the data to an input and output monitoring part 2. If no received data arrives within a prescribed time, the competition circuit is reset and monitoring is continued until the following received data is inputted.
JP9858980A 1980-07-18 1980-07-18 Information switching device Pending JPS5723129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9858980A JPS5723129A (en) 1980-07-18 1980-07-18 Information switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9858980A JPS5723129A (en) 1980-07-18 1980-07-18 Information switching device

Publications (1)

Publication Number Publication Date
JPS5723129A true JPS5723129A (en) 1982-02-06

Family

ID=14223826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9858980A Pending JPS5723129A (en) 1980-07-18 1980-07-18 Information switching device

Country Status (1)

Country Link
JP (1) JPS5723129A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190617U (en) * 1987-05-29 1988-12-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190617U (en) * 1987-05-29 1988-12-08

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