KR960019993A - Input device of general purpose controller - Google Patents

Input device of general purpose controller Download PDF

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Publication number
KR960019993A
KR960019993A KR1019940029432A KR19940029432A KR960019993A KR 960019993 A KR960019993 A KR 960019993A KR 1019940029432 A KR1019940029432 A KR 1019940029432A KR 19940029432 A KR19940029432 A KR 19940029432A KR 960019993 A KR960019993 A KR 960019993A
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KR
South Korea
Prior art keywords
circuit
signal
gate
control signal
input
Prior art date
Application number
KR1019940029432A
Other languages
Korean (ko)
Inventor
김성만
Original Assignee
이헌조
엘지전자 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 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940029432A priority Critical patent/KR960019993A/en
Publication of KR960019993A publication Critical patent/KR960019993A/en

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Abstract

본원 발명은 입력 스캔타임(scan time)보다 빠르게 변화되는 입력의 변화를 검출할 수 있는 범용콘트롤러의 입력장치에 관한 것으로서, 입력전압과 제어전압의 레벨이 다른 경우에 전기적으로 회로를 비접속하는 절연회로와, 상기 절연회로의 출력신호에 포함된 잡음을 제거하는 저주파통과필터와, 상기 저주파통과필터의 출력신호를 입력으로 하여 유효신호가 시작되는 부분을 감지하는 에지검출회로와, 중앙처리장치로부터 신호를 받아 제어신호를 발생하는 게이트선택회로와, 상기 게이트 선택회로의 제어신호에 따라 상기 에지검출회로의 출력 신호를 데이타버스로 출력하는 제1게이트회로와, 상기 게이트선택회로의 제어신호에 따라 상기 저주파통과필터의 출력신호를 데이타버스로 출력하는 제2게이트회로와, 상기 에지검출회로에서 에지가 검출된 후 상기 에지의 유지값을 소거하도록 상기 게이트선택회로의 제어신호에 따라 에지소거신호를 출력하는 소거회로로 구성되어 입력신호의 에지 및 레벨을 검출함으로서 입력스캔타임 사이에 입력되는 유효신호를 처리할 수 있는 것을 특징으로 한다.The present invention relates to an input device of a general-purpose controller that can detect a change in an input that changes faster than an input scan time. The present invention relates to an insulation that electrically disconnects a circuit when the input voltage and the control voltage are different. A low pass filter for removing noise included in an output signal of the insulation circuit, an edge detection circuit for detecting a portion at which an effective signal starts by inputting an output signal of the low pass filter, and a central processing unit from the central processing unit. A gate selection circuit for receiving a signal and generating a control signal, a first gate circuit for outputting an output signal of the edge detection circuit to a data bus according to a control signal of the gate selection circuit, and a control signal of the gate selection circuit A second gate circuit for outputting an output signal of the low pass filter to a data bus, and edge detection in the edge detection circuit; And an erase circuit for outputting an edge erase signal in accordance with a control signal of the gate selection circuit to erase the sustain value of the edge, thereby processing a valid signal input between input scan times by detecting edges and levels of the input signal. It can be characterized by.

Description

범용콘트롤러의 입력장치Input device of general purpose controller

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본원 발명에 의한 회로도.3 is a circuit diagram according to the present invention.

Claims (2)

입력전압과 제어전압의 레벨이 다른 경우에 전기적으로 회로를 비접속하는 절연회로와, 상기 절연회로의 출력신호에 포함된 잡음을 제거하는 저주파통과필터와, 상기 저주파통과필터의 출력신호를 입력으로 하는 유효신호가 시작되는 부분을 감지하는 에지검출회로와, 중앙처리장치로부터 신호를 받아 제어신호를 발생하는 게이트선택회로와, 상기 게이트선택회로의 제어신호에 따라 상기 에지검출회로의 출력신호를 데이타버스로 출력하는 제1게이트회로와, 상기 게이트선택회로의 제어신호에 따라 상기 저주파통과필터의 출력신호를 데이타 버스로 출력하는 제2게이트회로와, 상기 에지검출회로에서 에지가 검출된 후 상기 에지의 유지값을 소거하도록 상기 게이트선택회로의 제어신호에 따라 에지 소거신호를 출력하는 소거회로로 구성된 것을 특징으로 하는 범용콘트롤러의 입력장치.Insulation circuits electrically disconnecting circuits when the input voltage and the control voltage levels are different, a low pass filter for removing noise included in an output signal of the insulation circuit, and an output signal of the low pass filter as inputs An edge detection circuit for detecting a portion at which a valid signal starts, a gate selection circuit receiving a signal from a central processing unit, generating a control signal, and an output signal of the edge detection circuit according to a control signal of the gate selection circuit. A first gate circuit output to a bus, a second gate circuit outputting an output signal of the low pass filter to a data bus according to a control signal of the gate selection circuit, and the edge after the edge is detected by the edge detection circuit. And an erase circuit for outputting an edge erase signal in accordance with the control signal of the gate select circuit to erase the holding value of Input device of a general-purpose controller characterized in that. 제1항에 있어서, 상기 제1게이트회로 및 제2게이트회로는 상기 게이트선택회로의 제어신호에 따라 동작하는 버퍼로 구성된 것을 특징으로 하는 범용콘트롤러의 입력장치.The input device of claim 1, wherein the first gate circuit and the second gate circuit comprise a buffer that operates according to a control signal of the gate selection circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940029432A 1994-11-10 1994-11-10 Input device of general purpose controller KR960019993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940029432A KR960019993A (en) 1994-11-10 1994-11-10 Input device of general purpose controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940029432A KR960019993A (en) 1994-11-10 1994-11-10 Input device of general purpose controller

Publications (1)

Publication Number Publication Date
KR960019993A true KR960019993A (en) 1996-06-17

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ID=66687398

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940029432A KR960019993A (en) 1994-11-10 1994-11-10 Input device of general purpose controller

Country Status (1)

Country Link
KR (1) KR960019993A (en)

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