KR890001420Y1 - 직렬통신 제어회로 - Google Patents
직렬통신 제어회로 Download PDFInfo
- Publication number
- KR890001420Y1 KR890001420Y1 KR2019850016717U KR850016717U KR890001420Y1 KR 890001420 Y1 KR890001420 Y1 KR 890001420Y1 KR 2019850016717 U KR2019850016717 U KR 2019850016717U KR 850016717 U KR850016717 U KR 850016717U KR 890001420 Y1 KR890001420 Y1 KR 890001420Y1
- Authority
- KR
- South Korea
- Prior art keywords
- transistor
- base
- data
- serial communication
- control circuit
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
Description
Claims (1)
- 직력데이타통신 시스템에 있어서, 마이크로 컴퓨터(1)의 제어신호 출력단자 (CD)에서 에미터 접지된 트랜지스터(Q1)의 베이스에 연결함과 동시에 에미터가 트랜지스터(Q5)를 통해 접지된 트랜지스터(Q4)의 베이스에 연결하되, 트랜지스터(R1)의 콜렉터는 에미터가 트랜지스터(Q3)가 통해 접지된 트랜지스터(Q2)를 통해 마이크로 컴퓨터(1)의 직렬데이타 입력단자(IN)에 연결하고, 직렬데이타 출력단자(OUT)는 트랜지스터(Q5)의 베이스에 연결하며, 트랜지스터(Q4)의 콜렉터에서 전송선로(2)에 연결함과 동시에 다이오드(D2, D1)를 통해 트랜지스터 (Q3)의 베이스에 연결하여서 된 직렬통신 제어회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850016717U KR890001420Y1 (ko) | 1985-12-13 | 1985-12-13 | 직렬통신 제어회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850016717U KR890001420Y1 (ko) | 1985-12-13 | 1985-12-13 | 직렬통신 제어회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870010947U KR870010947U (ko) | 1987-07-15 |
KR890001420Y1 true KR890001420Y1 (ko) | 1989-04-05 |
Family
ID=19247187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019850016717U Expired KR890001420Y1 (ko) | 1985-12-13 | 1985-12-13 | 직렬통신 제어회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR890001420Y1 (ko) |
-
1985
- 1985-12-13 KR KR2019850016717U patent/KR890001420Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR870010947U (ko) | 1987-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19851213 |
|
UA0201 | Request for examination |
Patent event date: 19851213 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
UG1501 | Laying open of application | ||
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19890217 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19890624 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19890811 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19890811 |
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UR1001 | Payment of annual fee |
Payment date: 19920402 Start annual number: 4 End annual number: 4 |
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UR1001 | Payment of annual fee |
Payment date: 19930329 Start annual number: 5 End annual number: 5 |
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UR1001 | Payment of annual fee |
Payment date: 19940326 Start annual number: 6 End annual number: 6 |
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UR1001 | Payment of annual fee |
Payment date: 19941227 Start annual number: 7 End annual number: 7 |
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UR1001 | Payment of annual fee |
Payment date: 19951226 Start annual number: 8 End annual number: 8 |
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UR1001 | Payment of annual fee |
Payment date: 19961230 Start annual number: 9 End annual number: 9 |
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UR1001 | Payment of annual fee |
Payment date: 19971229 Start annual number: 10 End annual number: 10 |
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FPAY | Annual fee payment |
Payment date: 19981221 Year of fee payment: 11 |
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UR1001 | Payment of annual fee |
Payment date: 19981221 Start annual number: 11 End annual number: 11 |
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LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |