KR960011699A - Data transmission circuit with abnormal operation prevention function - Google Patents

Data transmission circuit with abnormal operation prevention function Download PDF

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Publication number
KR960011699A
KR960011699A KR1019940024785A KR19940024785A KR960011699A KR 960011699 A KR960011699 A KR 960011699A KR 1019940024785 A KR1019940024785 A KR 1019940024785A KR 19940024785 A KR19940024785 A KR 19940024785A KR 960011699 A KR960011699 A KR 960011699A
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KR
South Korea
Prior art keywords
data
microprocessor
signal
data signal
peripheral device
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Application number
KR1019940024785A
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Korean (ko)
Inventor
손보형
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940024785A priority Critical patent/KR960011699A/en
Publication of KR960011699A publication Critical patent/KR960011699A/en

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Abstract

본 발명은 각종 데이타를 전송하여 다수의 주변기기를 제어하는 마이크로 프로세서에 관한 것으로서, 더욱 상세하게는 마이크로 프로세서로부터 주변기기에 전송되는 어드레스, 라이트 및 데이타 신호에 외부로부터 노이즈 신호가 혼입되어 주변기기가 오동작되는 것을 방지하도록 된 이상동작 방지기능을 갖는 데이타 전송회로에 관한 것으로, 종래에는 마이크로 프로세서와 주변기기 간에 연결된 전송선로에 노이즈가 혼입되어 주변기기에 노이즈가 함유된 데이타 신호가 전송되어 주변기기가 오동작하는 결점을 가지고 있었다.The present invention relates to a microprocessor that transmits various data to control a plurality of peripheral devices. More particularly, a noise signal is mixed into an address, a write signal, and a data signal transmitted from a microprocessor to a peripheral device, thereby causing the peripheral device to malfunction. The present invention relates to a data transmission circuit having an abnormal operation prevention function. In the related art, noise is mixed in a transmission line connected between a microprocessor and a peripheral device, and a peripheral device malfunctions due to transmission of a data signal containing noise to the peripheral device. .

본 발명은 예시도면 제3도에서와 같이 전송하고자 하는 데이타 신호를 기초로 체크 썸 데이타를 생성시켜 출력하도록 마이크로 프로세서(100)를 구성하고, 라이트/리드 신호를 기초로 데이타 신호와 어드레스 신호를 판독/기록하는 듀얼 포트 램(300)을 구성하며, 상기 듀얼 포트 램(300)으로부터 전송된 데이타 신호의 체크 썸 데이타와 마이크로 프로세서(100)로부터 전송된 체크 썸 데이타를 대비하여 데이타 신호의 정상 전송여부를 판단하여 어드레스 신호와 데이타 신호를 어드레스 디코우더(200) 및 D-플립/플롭(D0-D7)에 전송하는 보조 프로세서(400)로 구성된 것이다.The present invention configures the microprocessor 100 to generate and output check thumb data based on the data signal to be transmitted, as shown in FIG. 3, and reads the data signal and the address signal based on the write / read signal. A dual port RAM 300 for recording and recording, and compares the check thumb data of the data signal transmitted from the dual port RAM 300 with the check thumb data transmitted from the microprocessor 100. It is composed of a coprocessor 400 for transmitting the address signal and the data signal to the address decoder 200 and the D-flip / flop (D 0 -D 7 ).

Description

이상동작 방지기능을 갖는 데이타 전송회로Data transmission circuit with abnormal operation prevention function

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

제3도는 본 발명에 따른 마이크로 프로세서의 이상동작 방지기능을 갖는 데이타 전송회로를 나타낸 블록도,3 is a block diagram showing a data transmission circuit having an abnormal operation preventing function of a microprocessor according to the present invention;

제4도는 본 발명에 따른 이상동작 방지기능을 갖는 데이타 전송회로를 구비한 마이크로 프로세서의 동작상태를 나타낸 흐름도.4 is a flowchart showing an operation state of a microprocessor having a data transmission circuit having an abnormal operation prevention function according to the present invention.

Claims (1)

전자기기의 내부에 마이크로 프로세서를 내장하여 전자기기의 동작과 함께 마이크로 프로세서에 연결된 주변기기의 각종 동작을 제어하는 시스템에 있어서, 주변기기의 동작을 제어하기 위해 출력포트로부터 출력되는 데이타 신호를 기초로 체크 썸 데이타를 생성하는 마이크로 프로세서(100)와, 마이크로 프로세서(100)와 보조 프로세서(400)의 라이트/리드 신호로 데이타 신호와 어드레스 신호를 판독/기록하는 듀얼 포트 램(300)과, 상기 듀얼 포트 램(300)으로부터 전송된 데이타 신호를 기초로 하여 생성된 체크 썸 데이타와 마이크로 프로세서(100)로부터 전송된 체크 썸 데이타를 대비하여 데이타 신호의 정상 전송여부를 판단하여 어드레스 신호와 데이타 신호를 어드레스 디코우더(200) 및 D-플립/플롭(D0-D7)에 전송하는 보조 프로세서(400)로 구성되어짐을 특징으로 하는 이상동작 방지 기능을 갖는 데이타 전송회로.In the system for controlling the operation of the peripheral device connected to the microprocessor with the operation of the electronic device by embedding a microprocessor inside the electronic device, a check thumb based on the data signal output from the output port to control the operation of the peripheral device A microprocessor 100 that generates data, a dual port RAM 300 that reads / writes a data signal and an address signal with write / read signals of the microprocessor 100 and the coprocessor 400, and the dual port RAM The address signal and the data signal are decoded by determining whether the data signal is properly transmitted by comparing the check thumb data generated based on the data signal transmitted from the 300 with the check thumb data transmitted from the microprocessor 100. It consists of more 200 and coprocessor 400 for transmission to the D- flip / flop (D 0 -D 7) Data transmission circuit having at least an operation prevention function according to claim. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940024785A 1994-09-29 1994-09-29 Data transmission circuit with abnormal operation prevention function KR960011699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940024785A KR960011699A (en) 1994-09-29 1994-09-29 Data transmission circuit with abnormal operation prevention function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940024785A KR960011699A (en) 1994-09-29 1994-09-29 Data transmission circuit with abnormal operation prevention function

Publications (1)

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KR960011699A true KR960011699A (en) 1996-04-20

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KR1019940024785A KR960011699A (en) 1994-09-29 1994-09-29 Data transmission circuit with abnormal operation prevention function

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KR (1) KR960011699A (en)

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