KR930011483A - Multiple serial communication method - Google Patents

Multiple serial communication method Download PDF

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Publication number
KR930011483A
KR930011483A KR1019910019974A KR910019974A KR930011483A KR 930011483 A KR930011483 A KR 930011483A KR 1019910019974 A KR1019910019974 A KR 1019910019974A KR 910019974 A KR910019974 A KR 910019974A KR 930011483 A KR930011483 A KR 930011483A
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KR
South Korea
Prior art keywords
serial communication
data
input
signal
output
Prior art date
Application number
KR1019910019974A
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Korean (ko)
Inventor
이은욱
Original Assignee
김희수
금성기전 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 김희수, 금성기전 주식회사 filed Critical 김희수
Priority to KR1019910019974A priority Critical patent/KR930011483A/en
Publication of KR930011483A publication Critical patent/KR930011483A/en

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Abstract

본 발명은 하나의 시스템과 여러개의 시스템간에 직렬통신하는 직렬통신에 관한 것으로, 종래에는 통신하고자 하는 시스템마다 각각의 직렬통신 제어부가 있어야 하므로 제어부 수의 증가에 따른 회로구성의 복잡성과 원가가 상승하는 문제점이 있었다.The present invention relates to serial communication for serial communication between one system and multiple systems. In the related art, since each serial communication control unit must be provided for each system to communicate, the complexity and cost of circuit configuration increase due to the increase in the number of control units. There was a problem.

이와 같은 종래의 결함을 감안하여 본 발명은 하나의 시스템과 여러개의 다른 시스템과 직렬통신할때 하나의 직렬통신 제어부만을 사용하여 회로의 구성을 간소화하였고, 프로토콜 수정없이 여러 시스템과 용이하게 통신할 수 있도록 하였다.In view of such a conventional deficiency, the present invention simplifies the circuit configuration using only one serial communication controller when serially communicating with one system and several other systems, and can easily communicate with multiple systems without protocol modification. It was made.

Description

다중 직렬통신 방법Multiple serial communication method

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

제2도는 본 발명의 다중 직렬통신 회로도.2 is a multiple serial communication circuit diagram of the present invention.

제3도의 (a) 내지 (d)는 본 발명의 다중 직렬통신 타이밍도.3A to 3D are multiple serial communication timing diagrams of the present invention.

Claims (1)

하나의 시스템 A(100)와 여러개의 시스템(200)들 간에 서로 통신하는 다중 직렬통신에 있어서, 전원인가시 상대방 시스템에 X-OFF(전송중지)신호를 출력한 다음 수신 인터럽트 발생유무를 체크하여 있으면 데이타를 입력하여 선택 시스템에 따른 작업을 수행하는 단계와, 작업수행시 데이타 입력을 잠시 중지하면 전송중지(X-OFF)신호를 출력하고 데이타 입력 재개하고 판단하면 전송전개(X-ON)신호를 출력하는 단계와, 인터럽트 발생이 없으면 발생할 데이타 존재를 체크하여 있으면 출력할 시스템을 선택하며 전송전개(X-ON)신호가 입력되든가 전송중지(X-OFF)신호가 입력되지 않으면 데이타를 출력하는 단계로 진행됨을 특징으로 하는 다중 직렬통신 방법.In the multiple serial communication between one system A 100 and several systems 200, an X-OFF (stop transmission) signal is output to the other system when power is applied, and then the reception interrupt occurrence is checked. If the data is input, perform the operation according to the selected system, and if the data input is paused during the operation, output the transmission stop signal (X-OFF) and resume the data input and judge the transmission start signal (X-ON). Outputs the data, and if there is no interruption, checks the existence of data and selects the system to output.If the X-ON signal is input or the X-OFF signal is not input, the data is output. Multiple serial communication method characterized in that the step proceeds. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910019974A 1991-11-11 1991-11-11 Multiple serial communication method KR930011483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910019974A KR930011483A (en) 1991-11-11 1991-11-11 Multiple serial communication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910019974A KR930011483A (en) 1991-11-11 1991-11-11 Multiple serial communication method

Publications (1)

Publication Number Publication Date
KR930011483A true KR930011483A (en) 1993-06-24

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Application Number Title Priority Date Filing Date
KR1019910019974A KR930011483A (en) 1991-11-11 1991-11-11 Multiple serial communication method

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KR (1) KR930011483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456739B1 (en) * 2001-11-28 2004-11-10 삼성전자주식회사 Apparatus and method for generating an interrupt signal using power signal in universal serial bus system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456739B1 (en) * 2001-11-28 2004-11-10 삼성전자주식회사 Apparatus and method for generating an interrupt signal using power signal in universal serial bus system

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