KR920000401B1 - 데이터 버퍼링회로 - Google Patents
데이터 버퍼링회로 Download PDFInfo
- Publication number
- KR920000401B1 KR920000401B1 KR1019890009082A KR890009082A KR920000401B1 KR 920000401 B1 KR920000401 B1 KR 920000401B1 KR 1019890009082 A KR1019890009082 A KR 1019890009082A KR 890009082 A KR890009082 A KR 890009082A KR 920000401 B1 KR920000401 B1 KR 920000401B1
- Authority
- KR
- South Korea
- Prior art keywords
- address
- host
- buffer memory
- buffer
- data
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
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- Memory System (AREA)
- Bus Control (AREA)
Abstract
Description
Claims (1)
- 호스트 프로세서와 수신프로세서간의 데이터 버퍼링 회로에 있어서, 소정상태의 제어 및 어드레싱에 의해 데이터를 억세스하는 버퍼메모리(12)와, 호스트 마이크로 프로세서의 제어신호(IOW, ALE)에 의해 호스트 어드레스를 디코딩하여 출력하는 호스트 어드레스 디코더(14)와, 호스트 마이크로 프로세서의 라이트 데이터를 상기 버퍼메모리(12)에 라이트 데이터로 버퍼링하는 제1버퍼(26)와, 상기 호스트 어드레스 디코더(14)의 출력을 카운트하여 상기 제1버퍼(26)의 출력을 상기 버퍼메모리(26)에 순차라이트 하기 위한 어드레스를 발생하는 제1어드레스 카운터(24)와, 수신프로세서의 제어신호(IOR,ALE)에 의하여 상기 수신프로세서의 어드레스를 디코딩하여 출력하는 수신어드레스 디코더(28)와, 상기 수신어드레스 디코더(28)의 출력을 카운트하여 상기 버퍼메모리(12)의 리이드 어드레스를 순차적으로 발생하는 제2어드레스 카운터(38)와, 상기 제2어드레스 카운터(38)의 어드레싱에 의해 상기 버퍼메모리(12)로부터 출력되는 데이터를 상기 수신마이크로 프로세서로 버퍼링하는 제2버퍼(40)와, 상기 제1, 제2어드레스 카운터(24)(38)의 출력 어드레스를 소정제어에 의해 멀티플렉싱하여 상기 버퍼메모리(12)의 어드레스 신호로 출력하는 어드레스 선택기(48)와, 상기 제1, 제2어드레스 카운터(24)(38)의 출력을 비교하여 출력하는 비교기(50)와, 상기 비교기(50)의 비교출력과 상기 제1, 제2어드레스 카운터(24)(38)의 최상위 비트를 입력하여 상기 버퍼메모리(12)상태인 엠프티(Empty)신호를 출력하는 엠프티 플레그 발생회로(62)로 구성됨을 특징으로 하는 회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890009082A KR920000401B1 (ko) | 1989-06-29 | 1989-06-29 | 데이터 버퍼링회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890009082A KR920000401B1 (ko) | 1989-06-29 | 1989-06-29 | 데이터 버퍼링회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910001751A KR910001751A (ko) | 1991-01-31 |
KR920000401B1 true KR920000401B1 (ko) | 1992-01-13 |
Family
ID=19287591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890009082A Expired KR920000401B1 (ko) | 1989-06-29 | 1989-06-29 | 데이터 버퍼링회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR920000401B1 (ko) |
-
1989
- 1989-06-29 KR KR1019890009082A patent/KR920000401B1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR910001751A (ko) | 1991-01-31 |
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