KR880006636A - Data transmission circuit using one chip microcomputer at terminal - Google Patents

Data transmission circuit using one chip microcomputer at terminal Download PDF

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Publication number
KR880006636A
KR880006636A KR860009976A KR860009976A KR880006636A KR 880006636 A KR880006636 A KR 880006636A KR 860009976 A KR860009976 A KR 860009976A KR 860009976 A KR860009976 A KR 860009976A KR 880006636 A KR880006636 A KR 880006636A
Authority
KR
South Korea
Prior art keywords
port
output
printer
microcomputer
host computer
Prior art date
Application number
KR860009976A
Other languages
Korean (ko)
Other versions
KR890005002B1 (en
Inventor
장규항
Original Assignee
한형수
삼성전자 주식회사
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 한형수, 삼성전자 주식회사 filed Critical 한형수
Priority to KR8609976A priority Critical patent/KR890005002B1/en
Publication of KR880006636A publication Critical patent/KR880006636A/en
Application granted granted Critical
Publication of KR890005002B1 publication Critical patent/KR890005002B1/en

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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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Communication Control (AREA)

Abstract

내용 없음No content

Description

터미날에서 원칩 마이콤을 이용한 데이타 전송회로Data transmission circuit using one chip microcomputer at terminal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 블럭도,1 is a block diagram according to the present invention,

제2도는 본 발명에 따른 제1도의 구체회로도,2 is a detailed circuit diagram of FIG. 1 according to the present invention;

제3도는 본 발명에 따른 키보드 직렬 데이타 샘플 회로도.3 is a keyboard serial data sample circuit diagram in accordance with the present invention.

Claims (1)

프린터축 프린터포트(60)와, 호스트컴퓨터가 연결되는 메인포트(70)와, 입력장치인 카보드포트(80)를 구비한 터미날 시스템에 있어서, 중앙처리장치내 직렬포트를 내장하고서 마이크로 제어기로 명령어에 따라 데이타 처리에 따른 제어명령을 출력하는 마이콤(10)와, 상기 마이콤(10)을 출력을 드라이브하여 주변칩의 엑세스할 출력포트를 선택할 수 있는 주변칩선택부(20)와, 상기 마이콤(10)의 제어에 따라 호스트컴퓨터와 프린터 포트를 선택하기 위한 신호를 출력하는 선택부(30)와, 상기 선택부(30)의 출력에 따라 프린터를 제어하는 제1제어부(40)와, 상기 선택부(30)의 출력에 따라 호스트컴퓨터를 제어하는 제2제어부(50)로 구성함을 특징으로 하는 터미날에서 원칩 마이콤을 이용한 데이타 전송 회로.In a terminal system having a printer axis printer port 60, a main port 70 to which a host computer is connected, and a carport port 80 as an input device, a serial port in a central processing unit is built in as a microcontroller. A microcomputer 10 for outputting a control command according to data processing according to a command, a peripheral chip selecting unit 20 for driving an output of the microcomputer 10 to select an output port to access a peripheral chip, and the microcomputer A selection unit 30 for outputting a signal for selecting a host computer and a printer port under the control of 10, a first control unit 40 for controlling the printer according to the output of the selection unit 30, and And a second controller (50) for controlling the host computer according to the output of the selector (30). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8609976A 1986-11-26 1986-11-26 Data transfer circuit KR890005002B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR8609976A KR890005002B1 (en) 1986-11-26 1986-11-26 Data transfer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR8609976A KR890005002B1 (en) 1986-11-26 1986-11-26 Data transfer circuit

Publications (2)

Publication Number Publication Date
KR880006636A true KR880006636A (en) 1988-07-23
KR890005002B1 KR890005002B1 (en) 1989-12-02

Family

ID=19253595

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8609976A KR890005002B1 (en) 1986-11-26 1986-11-26 Data transfer circuit

Country Status (1)

Country Link
KR (1) KR890005002B1 (en)

Also Published As

Publication number Publication date
KR890005002B1 (en) 1989-12-02

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