KR900005767A - Voice service circuit using DMA for facsimile interface - Google Patents

Voice service circuit using DMA for facsimile interface Download PDF

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Publication number
KR900005767A
KR900005767A KR1019880012635A KR880012635A KR900005767A KR 900005767 A KR900005767 A KR 900005767A KR 1019880012635 A KR1019880012635 A KR 1019880012635A KR 880012635 A KR880012635 A KR 880012635A KR 900005767 A KR900005767 A KR 900005767A
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KR
South Korea
Prior art keywords
unit
dma
processing unit
service circuit
central processing
Prior art date
Application number
KR1019880012635A
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Korean (ko)
Inventor
태성식
Original Assignee
강진구
삼성반도체통신 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.)
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Application filed by 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR1019880012635A priority Critical patent/KR900005767A/en
Publication of KR900005767A publication Critical patent/KR900005767A/en

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Abstract

내용없음No content

Description

팩시밀리의 인터페이스를 위한 DMA를 이용한 음성 서비스회로Voice service circuit using DMA for facsimile interface

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

제1도는 본 발명에 따른 시스템 블럭도.1 is a system block diagram according to the present invention.

제2도는 본 발명에 따른 제1도의 메모리부(50)의 구체회로도.2 is a detailed circuit diagram of the memory unit 50 of FIG. 1 according to the present invention.

Claims (1)

팩시밀리 인터페이스를 위한 음성 메세지 서비스 회로에 있어서, 초기에 각부의 초기화와 시스템제어에 따른 제어 및 데이타를 발생하는 중앙처리장치(10)와, 상기 중앙처리장치(10)로부터 제어권을 받아 음성 데이타를 직접 억세스하여 내보내주는 DMA처리부(20)와, 음성 데이타를 랜덤으로 저장할 수 있는 메모리부(50)와, 상기 메모리부(50)에서 출력한 데이타를 올바르게 보내줄 수 있도록 해주는 4채널의 카운터 래치부(40)와, 상기 래치부(40)쪽에서 데이타를 받아 아나로그 신호로 전환시켜 음성 데이타를 가입자에게 보내주는 4채널의 코덱부(30)와, 상기 중앙처리장치(10)의 인터럽트 신호로 상기 DMA처리부(20)의 제어에 의해 발생하는 인터럽트부(60)로 구성됨을 특징으로 하는 DMA를 이용한 음성 서비스회로.In the voice message service circuit for a facsimile interface, a central processing unit (10) for generating control and data according to initialization and system control of each unit, and receiving control right from the central processing unit (10) directly to receive voice data. A DMA processing unit 20 for accessing and exporting, a memory unit 50 for storing voice data randomly, and a 4-channel counter latching unit for correctly sending data output from the memory unit 50 ( 40, a 4-channel codec unit 30 which receives data from the latch unit 40, converts it into an analog signal, and sends voice data to the subscriber; and the DMA as an interrupt signal of the central processing unit 10. Voice service circuit using a DMA, characterized in that consisting of an interrupt unit (60) generated by the control of the processing unit (20). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880012635A 1988-09-29 1988-09-29 Voice service circuit using DMA for facsimile interface KR900005767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880012635A KR900005767A (en) 1988-09-29 1988-09-29 Voice service circuit using DMA for facsimile interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880012635A KR900005767A (en) 1988-09-29 1988-09-29 Voice service circuit using DMA for facsimile interface

Publications (1)

Publication Number Publication Date
KR900005767A true KR900005767A (en) 1990-04-14

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ID=68158347

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880012635A KR900005767A (en) 1988-09-29 1988-09-29 Voice service circuit using DMA for facsimile interface

Country Status (1)

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KR (1) KR900005767A (en)

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