JPS5771035A - Input and output equipment for microcomputer - Google Patents

Input and output equipment for microcomputer

Info

Publication number
JPS5771035A
JPS5771035A JP55147903A JP14790380A JPS5771035A JP S5771035 A JPS5771035 A JP S5771035A JP 55147903 A JP55147903 A JP 55147903A JP 14790380 A JP14790380 A JP 14790380A JP S5771035 A JPS5771035 A JP S5771035A
Authority
JP
Japan
Prior art keywords
data
register
series data
cpu
shift
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
JP55147903A
Other languages
Japanese (ja)
Inventor
Masashi Tominaga
Munehiro Minami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55147903A priority Critical patent/JPS5771035A/en
Publication of JPS5771035A publication Critical patent/JPS5771035A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/007—Digital input from or digital output to memories of the shift register type

Abstract

PURPOSE:To improve the efficiency of the series data procesing of a microcomputer by transferring series data between a shift register and a CPU which receive and transmit the series data, through a buffer register. CONSTITUTION:When a series data input and output equipment 15 inputs series data from an external equipment, a shift register 18 receives the data synchronizing with a shift clock from a control logical circuit 21 and sets them in a buffer register 20. Then, a CPU reads the received data, set in the buffer register 20, in parallel through a bus 19. When the CPU13 is to transmit data to the external equipment, a control signal is supplied from the CPU to the control logical circuit 21 and the data are set in the buffer register 20 through the bus 19 and transferred to the shift register 18 to be sent by the clock from the control logic circuit 21. If the register 18 is busy for data transmission when the data are set in the register 20, the data are made to stand by in the register 20 temporarily. Thus, the wait time of data transfer is reduced greatly.
JP55147903A 1980-10-22 1980-10-22 Input and output equipment for microcomputer Pending JPS5771035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147903A JPS5771035A (en) 1980-10-22 1980-10-22 Input and output equipment for microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147903A JPS5771035A (en) 1980-10-22 1980-10-22 Input and output equipment for microcomputer

Publications (1)

Publication Number Publication Date
JPS5771035A true JPS5771035A (en) 1982-05-01

Family

ID=15440734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147903A Pending JPS5771035A (en) 1980-10-22 1980-10-22 Input and output equipment for microcomputer

Country Status (1)

Country Link
JP (1) JPS5771035A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037054A (en) * 1983-08-05 1985-02-26 Matsushita Electric Ind Co Ltd Single chip microcomputer
JPS62266645A (en) * 1986-05-14 1987-11-19 Nec Corp Serial interface circuit
JPS6356741A (en) * 1986-08-28 1988-03-11 Nec Corp Test circuit
JPH02228341A (en) * 1989-03-02 1990-09-11 Tokai Rubber Ind Ltd Vibration insulator rubber composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037054A (en) * 1983-08-05 1985-02-26 Matsushita Electric Ind Co Ltd Single chip microcomputer
JPS62266645A (en) * 1986-05-14 1987-11-19 Nec Corp Serial interface circuit
JPS6356741A (en) * 1986-08-28 1988-03-11 Nec Corp Test circuit
JPH02228341A (en) * 1989-03-02 1990-09-11 Tokai Rubber Ind Ltd Vibration insulator rubber composition

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