JPS54100234A - Common bus system input/output circuit - Google Patents
Common bus system input/output circuitInfo
- Publication number
- JPS54100234A JPS54100234A JP625778A JP625778A JPS54100234A JP S54100234 A JPS54100234 A JP S54100234A JP 625778 A JP625778 A JP 625778A JP 625778 A JP625778 A JP 625778A JP S54100234 A JPS54100234 A JP S54100234A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- bus
- bus control
- input
- output
- 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.)
- Pending
Links
Landscapes
- Bus Control (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE: To enhance the reliability for the input/output circuit by connecting plural input/output circuits connedted to the common bus to the bus control signal line and providing the bus control part to the input/output circuit.
CONSTITUTION: For the master station display circuit of the 1:N-type remote contol device, display data D1WDn given from each slave station are received and error-checked at receiver circuit 1 to be stored in memory 2 of each slave station. Common bus signal line 5 to collect the necessary data and bus control signal line 6 to make pass the control signals such as the bus occupation request signal and others are provided between memory 2 and output circuit 10. The bus control circuit part is provided to circuit 10, and non-bus control detector circuit is provided at the bus contol circuit part to detect the time point when no bus control signal sent from other output circuits exists or detect the priority. And the occupation permission signal of common bus 5 is delivered under the conditions that no bus control signal sent from other bus control parts as well as from other output circfits fraturing the higher priority. Thus, the control circuit is installed with every input/output circuit, so that the reliability can be enhanced for the input/output circuit.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP625778A JPS54100234A (en) | 1978-01-25 | 1978-01-25 | Common bus system input/output circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP625778A JPS54100234A (en) | 1978-01-25 | 1978-01-25 | Common bus system input/output circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54100234A true JPS54100234A (en) | 1979-08-07 |
Family
ID=11633415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP625778A Pending JPS54100234A (en) | 1978-01-25 | 1978-01-25 | Common bus system input/output circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54100234A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS622742A (en) * | 1985-06-28 | 1987-01-08 | Toshiba Corp | Collision detecting system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50137636A (en) * | 1974-04-22 | 1975-10-31 | ||
JPS50150332A (en) * | 1974-05-22 | 1975-12-02 | ||
JPS50156838A (en) * | 1974-06-07 | 1975-12-18 | ||
JPS5160428A (en) * | 1974-11-25 | 1976-05-26 | Hitachi Ltd |
-
1978
- 1978-01-25 JP JP625778A patent/JPS54100234A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50137636A (en) * | 1974-04-22 | 1975-10-31 | ||
JPS50150332A (en) * | 1974-05-22 | 1975-12-02 | ||
JPS50156838A (en) * | 1974-06-07 | 1975-12-18 | ||
JPS5160428A (en) * | 1974-11-25 | 1976-05-26 | Hitachi Ltd |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS622742A (en) * | 1985-06-28 | 1987-01-08 | Toshiba Corp | Collision detecting system |
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