KR970024590A - I / O port control device - Google Patents

I / O port control device Download PDF

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Publication number
KR970024590A
KR970024590A KR1019950034954A KR19950034954A KR970024590A KR 970024590 A KR970024590 A KR 970024590A KR 1019950034954 A KR1019950034954 A KR 1019950034954A KR 19950034954 A KR19950034954 A KR 19950034954A KR 970024590 A KR970024590 A KR 970024590A
Authority
KR
South Korea
Prior art keywords
digital
input
port
analog
output
Prior art date
Application number
KR1019950034954A
Other languages
Korean (ko)
Inventor
김인혁
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950034954A priority Critical patent/KR970024590A/en
Publication of KR970024590A publication Critical patent/KR970024590A/en

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Abstract

본 발명은 디바이스의 입출력포트의 제어장치에 관한 것으로, 디바이스 내부의 아날로그 입력단자, 디지탈 입력단자, 및 디지탈 출력단자; 아나로그신호를 입력하거나, 디지탈신호를 입출력하기 위한 입출력겸용 포트; 포트의 입력경로를 통하여 입력되는 신호를 디지탈 입력단자로 입력시키기 위한 디지탈입력버퍼수단; 디지탈출력단자의 신호를 포트의 출력경로를 통하여 출력시키기 위한 디지탈출력버퍼수단; 포트를 통하여 아날로그신호를 아날로그입력단자로 입력시키기 위한 아날로그모드, 또는 포트와 디지탈 입출력단자 사이의 디지탈신호의 입출력을 위한 디지탈모드를 설정하기 위한 모드설정수단; 및 모드설정수단에 의하여 설정된 동작모드에 따라 포트와 디바이스 단자간의 입출력경로를 절환하기 위한 모드절환수단을 포함한다. 본 발명에 의하면 모드레지스터를 이용하여 아나로그전용 입력포트를 아나로그/디지탈 입출력겸용 포트로 사용할 수 있으므로 디바이스의 핀 수를 효율적으로 줄일 수 있다.The present invention relates to a control device for an input / output port of a device, comprising: an analog input terminal, a digital input terminal, and a digital output terminal inside the device; An input / output port for inputting an analog signal or inputting / outputting a digital signal; Digital input buffer means for inputting a signal input through an input path of a port to a digital input terminal; Digital output buffer means for outputting a signal of the digital output terminal through an output path of the port; Mode setting means for setting an analog mode for inputting an analog signal to the analog input terminal through the port, or a digital mode for inputting / outputting the digital signal between the port and the digital input / output terminal; And mode switching means for switching the input / output path between the port and the device terminal in accordance with the operation mode set by the mode setting means. According to the present invention, an analog-only input port can be used as an analog / digital input / output port using a mode register, so that the pin count of the device can be efficiently reduced.

Description

입출력겸용 포트의 제어장치I / O port control device

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

제1도는 본 발명에 의한 입출력겸용 포트를 제어하기 위한 장치의 구성블럭도.1 is a block diagram of an apparatus for controlling an input / output port according to the present invention.

Claims (1)

디바이스 내부의 아날로그 입력단자, 디지탈 입력단자, 및 디지탈 출력단자; 아나로그신호를 입력하거나, 디지탈신호를 입출력하기 위한 입출력겸용 포트; 상기 포트의 입력경로를 통하여 입력되는 신호를 상기 디바이스 내부의 디지탈 입력단자로 입력시키기 위한 디지탈입력버퍼수단; 상기 디바이스의 디지탈출력단자의 신호를 상기 포트의 출력경로를 통하여 출력시키기 위한 디지탈출력버퍼수단; 상기 포트를 통하여 아날로그신호를 상기 디바이스 내부의 아날로그 입력단자로 입력시키기 위한 아날로그모드, 또는 상기 포트와 디지탈 입출력단자 사이의 디지탈신호의 입출력을 위한 디지탈모드를 설정하기 위한 모드설정수단; 및 상기 모드설정수단에 의하여 설정된 동작모드에 따라 상기 포트와 디바이스 단자간의 입출력경로를 절환하기 위한 모드절환수단을 포함함을 특징으로 하는 입출력겸용 포트의 제어장치.An analog input terminal, a digital input terminal, and a digital output terminal inside the device; An input / output port for inputting an analog signal or inputting / outputting a digital signal; Digital input buffer means for inputting a signal input through an input path of the port to a digital input terminal inside the device; Digital output buffer means for outputting a signal of the digital output terminal of the device through an output path of the port; Mode setting means for setting an analog mode for inputting an analog signal to an analog input terminal inside the device through the port, or a digital mode for inputting / outputting a digital signal between the port and the digital input / output terminal; And mode switching means for switching the input / output path between the port and the device terminal in accordance with the operation mode set by the mode setting means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034954A 1995-10-11 1995-10-11 I / O port control device KR970024590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950034954A KR970024590A (en) 1995-10-11 1995-10-11 I / O port control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950034954A KR970024590A (en) 1995-10-11 1995-10-11 I / O port control device

Publications (1)

Publication Number Publication Date
KR970024590A true KR970024590A (en) 1997-05-30

Family

ID=66583687

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950034954A KR970024590A (en) 1995-10-11 1995-10-11 I / O port control device

Country Status (1)

Country Link
KR (1) KR970024590A (en)

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