JPS5457805A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5457805A
JPS5457805A JP12480677A JP12480677A JPS5457805A JP S5457805 A JPS5457805 A JP S5457805A JP 12480677 A JP12480677 A JP 12480677A JP 12480677 A JP12480677 A JP 12480677A JP S5457805 A JPS5457805 A JP S5457805A
Authority
JP
Japan
Prior art keywords
signal
mode
latched
output data
input
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
JP12480677A
Other languages
Japanese (ja)
Inventor
Toshiro Iwasaki
Nobuo Terasaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12480677A priority Critical patent/JPS5457805A/en
Publication of JPS5457805A publication Critical patent/JPS5457805A/en
Pending legal-status Critical Current

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  • Communication Control (AREA)

Abstract

PURPOSE: To improve the reliability of transmission by reducing the number of transmission lines and by making input-output data collation.
CONSTITUTION: By adding mode signal (f), address signal (a) is divided into four first, output data signal (b) and strobe signal (c) are transmitted by the 1st mode signal, and the output data is latched at a reception side temporarily in order to send back the output data in the 2nd mode. In the 2nd mode, output data sending- back signal (g) is sent back and collated at the transmission side. If it agrees through the collation, signal (c) is transmitted again and the output data temporarily latched at the reception side is output-latched. In the 3rd mode next, an input data signal is transmitted from the reception side and latched at the transmission side temporarily by input-data read command signal (e). In the 4th mode, the input data signal is transmitted again from the reception side and latched by signal (e), so that it will be collated with the input data signal latched in the 3rd mode
COPYRIGHT: (C)1979,JPO&Japio
JP12480677A 1977-10-17 1977-10-17 Data transmission system Pending JPS5457805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12480677A JPS5457805A (en) 1977-10-17 1977-10-17 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12480677A JPS5457805A (en) 1977-10-17 1977-10-17 Data transmission system

Publications (1)

Publication Number Publication Date
JPS5457805A true JPS5457805A (en) 1979-05-10

Family

ID=14894575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12480677A Pending JPS5457805A (en) 1977-10-17 1977-10-17 Data transmission system

Country Status (1)

Country Link
JP (1) JPS5457805A (en)

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