JPS54114939A - Bus scramble circuit - Google Patents
Bus scramble circuitInfo
- Publication number
- JPS54114939A JPS54114939A JP2164378A JP2164378A JPS54114939A JP S54114939 A JPS54114939 A JP S54114939A JP 2164378 A JP2164378 A JP 2164378A JP 2164378 A JP2164378 A JP 2164378A JP S54114939 A JPS54114939 A JP S54114939A
- Authority
- JP
- Japan
- Prior art keywords
- bus
- unit
- gate
- circuit
- 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
Abstract
PURPOSE: To ensure the timing control without the timing control circuit.
CONSTITUTION: In the information processing system in which each unit is commonly connected to CPU via the bus line, the circuit provides the first FF61 set at interruption request, second FF66 set during the bus usage by the unit, first gate 63 inhibiting the output of FF61 with the signal representing that the unit itself uses the bus, delay circuit 64 compensating the output of the gate 63 for the time until the interrupt reception signal from the unit having the lowest priority among each unit connected to the bus is off, and second gate 65 inputting the output of the circuit 64, interruption reception signal from other units, and further, the signal representing the usage condition of bus, and controlling the second FF66.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2164378A JPS54114939A (en) | 1978-02-28 | 1978-02-28 | Bus scramble circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2164378A JPS54114939A (en) | 1978-02-28 | 1978-02-28 | Bus scramble circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54114939A true JPS54114939A (en) | 1979-09-07 |
Family
ID=12060731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2164378A Pending JPS54114939A (en) | 1978-02-28 | 1978-02-28 | Bus scramble circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54114939A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50150332A (en) * | 1974-05-22 | 1975-12-02 | ||
JPS5195748A (en) * | 1975-01-08 | 1976-08-21 |
-
1978
- 1978-02-28 JP JP2164378A patent/JPS54114939A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50150332A (en) * | 1974-05-22 | 1975-12-02 | ||
JPS5195748A (en) * | 1975-01-08 | 1976-08-21 |
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