KR900014996A - RAM Backup Method for TV Micro Computer - Google Patents

RAM Backup Method for TV Micro Computer Download PDF

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Publication number
KR900014996A
KR900014996A KR1019890004237A KR890004237A KR900014996A KR 900014996 A KR900014996 A KR 900014996A KR 1019890004237 A KR1019890004237 A KR 1019890004237A KR 890004237 A KR890004237 A KR 890004237A KR 900014996 A KR900014996 A KR 900014996A
Authority
KR
South Korea
Prior art keywords
ram
backup method
micro computer
ram backup
terminal
Prior art date
Application number
KR1019890004237A
Other languages
Korean (ko)
Inventor
임병진
Original Assignee
이헌조
주식회사 금성사
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, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019890004237A priority Critical patent/KR900014996A/en
Publication of KR900014996A publication Critical patent/KR900014996A/en

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Abstract

내용 없음.No content.

Description

TV용 마이크로 컴퓨터의 램 백업방법RAM Backup Method for TV Micro Computer

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

제1도는 종래의 EEPROM을 이용한 램 백업 구성도,1 is a RAM backup configuration using a conventional EEPROM,

제2도는 본 발명의 회로도, 제3도는 제2도에 따른 플로우 챠트.2 is a circuit diagram of the present invention, and FIG. 3 is a flow chart according to FIG.

Claims (1)

전원(B+) 단에 접지된 콘덴서(C1)와 제너다이오드(ZD)를 병렬 접속하고 이 제너다이오드(ZD)의 후단을 다이오드(D2)를 통하여 마이크로 컴퓨터(10)의 홀드(HOLD)단에 접속함과 아울러 다이오드(D1)를 통하여 마이크로 컴퓨터(10)의 전원(VDD)단과 리셋(RS)단 그리고 접지된 콘덴서(C2)와의 공통접점에 접속하여 정전시 백업파난 정보를 램(RAM)에 기록하게 하고 정전해제시 백업 정보를 판단하여 램(RAM)정보의 파괴여부를 결정하게 함을 특징으로하는 TV용 마이크로 컴퓨터의 램 백업 방법.The capacitor C 1 and the zener diode ZD grounded at the power supply B + stage are connected in parallel, and the rear end of the zener diode ZD is held through the diode D 2 . It is connected to the terminal and connected to the common contact between the power supply (V DD ) terminal, the reset (RS) terminal and the grounded capacitor (C 2 ) of the microcomputer 10 through the diode (D 1 ) to backup backup information in case of power failure The RAM backup method for a microcomputer for a TV, characterized in that to record in the RAM (RAM) and to determine whether or not the RAM (RAM) information by determining the backup information when the power failure. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890004237A 1989-03-31 1989-03-31 RAM Backup Method for TV Micro Computer KR900014996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890004237A KR900014996A (en) 1989-03-31 1989-03-31 RAM Backup Method for TV Micro Computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890004237A KR900014996A (en) 1989-03-31 1989-03-31 RAM Backup Method for TV Micro Computer

Publications (1)

Publication Number Publication Date
KR900014996A true KR900014996A (en) 1990-10-25

Family

ID=67776850

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890004237A KR900014996A (en) 1989-03-31 1989-03-31 RAM Backup Method for TV Micro Computer

Country Status (1)

Country Link
KR (1) KR900014996A (en)

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