KR970049365A - Analog / Digital Converter Handles Multiple Analog Input Sources with One A / D Conversion Instruction - Google Patents

Analog / Digital Converter Handles Multiple Analog Input Sources with One A / D Conversion Instruction Download PDF

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Publication number
KR970049365A
KR970049365A KR1019950066891A KR19950066891A KR970049365A KR 970049365 A KR970049365 A KR 970049365A KR 1019950066891 A KR1019950066891 A KR 1019950066891A KR 19950066891 A KR19950066891 A KR 19950066891A KR 970049365 A KR970049365 A KR 970049365A
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KR
South Korea
Prior art keywords
converter
analog input
input sources
conversion
analog
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KR1019950066891A
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Korean (ko)
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KR0170724B1 (en
Inventor
라상주
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김광호
삼성전자 주식회사
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Priority to KR1019950066891A priority Critical patent/KR0170724B1/en
Publication of KR970049365A publication Critical patent/KR970049365A/en
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Publication of KR0170724B1 publication Critical patent/KR0170724B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/05—Digital input using the sampling of an analogue quantity at regular intervals of time, input from a/d converter or output to d/a converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/123—Simultaneous, i.e. using one converter per channel but with common control or reference circuits for multiple converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

본 발명은 한 번의 A/D 컨버션 명령을 통해 복수 개의 아날로그 입력원을 A/D 컨버션할 수 있는 A/D 컨버터에 관한 것으로서,The present invention relates to an A / D converter capable of A / D conversion of a plurality of analog input sources through one A / D conversion command.

아날로그 입력원을 선택하는 명령이나, 시작 명령을 지시하는 중앙처리부; 상기 중앙처리부의 제어를 받는 A/D 타이밍 레지스터;A central processing unit for selecting an analog input source or instructing a start command; An A / D timing register under control of the central processing unit;

기준 전압을 생성하는 D/A 컨버터; 상기 D/A 컨버터로부터 출력되는 기준전압과 상기 아날로그 입력원을 선택하는 A/D 타이밍 레지스터로부터 출력되는 입력 전압의 대소를 비교하는 비교부; 상기 비교기로부터 비교된 결과값을 상기 D/A 컨버터에 제공하는 컨트롤부; 상기 D/A 컨버터로부터 출력되는 값을 저장하는 A/D 데이터 저장부를 포함한다.A D / A converter for generating a reference voltage; A comparison unit for comparing the magnitude of the reference voltage output from the D / A converter and the input voltage output from the A / D timing register for selecting the analog input source; A control unit for providing a result value compared from the comparator to the D / A converter; And an A / D data storage unit for storing a value output from the D / A converter.

따라서, 상술한 바와 같이 본 발명은 복수개의 아날로그 입력원을 A/D 컨버션 수행할 때, 단 한 번의 A/D 컨버터 컨트롤 명령을 통해 실현함으로써, 빠른 처리를 할 수 있고, A/D 컨버션이 진행되는 동안 MCU가 다른 일을 처리할 수 있는 효과를 갖는다.Therefore, as described above, when the A / D conversion is performed on a plurality of analog input sources, the present invention can be realized through only one A / D converter control command, thereby enabling fast processing, and A / D conversion. During this process, the MCU has the effect of doing other things.

Description

한번의 A/D 컨버션 명령으로 복수개의 아날로그 입력원을 처리하는 아날로그/디지탈 컨버터Analog / Digital Converter Handles Multiple Analog Input Sources with One A / D Conversion Instruction

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

제3도는 제1도의 도시된 MPU를 기본 구성으로 하는 본 발명에 따른 A/D 블록의 상세한 구조를 보이는 도면이다.3 is a view showing a detailed structure of the A / D block according to the present invention having a basic configuration shown in FIG.

Claims (4)

복수 개의 아날로그 입력원을 디지탈로 컨버션하는 A/D 컨버터에 있어서, 아날로그 입력원을 선택하는 명령이나, 시작 명령을 지시하는 중앙처리부; 상기 중앙처리부의 제어를 받는 A/D 타이밍 레지스터; 기준 전압을 생성하는 D/A 컨버터; 상기 D/A 컨버터로부터 출력되는 기준전압과 상기 아날로그 입력원을 선택하는 A/D 타이밍 레지스터로부터 출력되는 입력 전압의 대소를 비교하는 비교부; 상기 비교기로부터 비교된 결과값을 상기 D/A 컨버터에 제공하는 컨트롤부; 상기 D/A 컨버터로부터 출력되는 값을 저장하는 A/D 데이터 저장부를 포함하는 것을 특징으로 하는 A/D 컨버터.An A / D converter for digitally converting a plurality of analog input sources, comprising: a central processing unit for instructing a command for selecting an analog input source or a start command; An A / D timing register under control of the central processing unit; A D / A converter for generating a reference voltage; A comparison unit for comparing the magnitude of the reference voltage output from the D / A converter and the input voltage output from the A / D timing register for selecting the analog input source; A control unit for providing a result value compared from the comparator to the D / A converter; And an A / D data storage unit for storing a value output from the D / A converter. 제1항에 있어서, 비교부는 SAR(Successive approximation method)방식을 이용하는 것을 특징으로 하는 A/D 컨버터.The A / D converter according to claim 1, wherein the comparator uses a successive approximation method (SAR) method. 제1항에 있어서, A/D 타이밍 레지스터에 A/D 컨버션의 동작 수행을 개시하는 한 번의 시작 명령으로 복수 개의 아날로그 입력원을 디지탈 신호로 변환하는 것을 특징으로 하는 A/D 컨버터.The A / D converter according to claim 1, wherein a plurality of analog input sources are converted into digital signals by a single start command for starting an A / D conversion operation in the A / D timing register. 제1항과 제3항에 있어서, 복수 개의 아날로그 입력원 중 임의의 아날로그 입력원을 선택하는 것을 특징으로 하는 A/D 컨버터.The A / D converter according to claim 1 or 3, wherein an arbitrary analog input source is selected from a plurality of analog input sources. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950066891A 1995-12-29 1995-12-29 Analog/digital converter KR0170724B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950066891A KR0170724B1 (en) 1995-12-29 1995-12-29 Analog/digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950066891A KR0170724B1 (en) 1995-12-29 1995-12-29 Analog/digital converter

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KR970049365A true KR970049365A (en) 1997-07-29
KR0170724B1 KR0170724B1 (en) 1999-03-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919085B1 (en) * 2002-01-28 2009-09-28 가부시키가이샤 히타치세이사쿠쇼 Semiconductor integrated circuit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919085B1 (en) * 2002-01-28 2009-09-28 가부시키가이샤 히타치세이사쿠쇼 Semiconductor integrated circuit device

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