JPS54137940A - Multi-data processor - Google Patents
Multi-data processorInfo
- Publication number
- JPS54137940A JPS54137940A JP4537378A JP4537378A JPS54137940A JP S54137940 A JPS54137940 A JP S54137940A JP 4537378 A JP4537378 A JP 4537378A JP 4537378 A JP4537378 A JP 4537378A JP S54137940 A JPS54137940 A JP S54137940A
- Authority
- JP
- Japan
- Prior art keywords
- address signal
- data transfer
- circuit
- signal line
- switching
- 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.)
- Granted
Links
Abstract
PURPOSE: To make the switching control of a double system possible by separating an address signal line in a common bus into a data transfer address signal line and a system address signal line in a multi-data processor.
CONSTITUTION: Common bus 20 is provided with data transfer address signal line 21 and system address signal line 22. At the time of data transfer, data transfer control circuit 15 of data processor 19 sends out data transfer address signal (n), opposite unit 19 discriminates that signal (n) inputted to discrimination crcuit 23 is its own data transfer address, and circuit 15 transfers data. At the time of switching to the double system, doubling switching control circuit 27 of switching control circuit 18 outputs transfer address signal (n) and system address signal (o). Discrimination circuit 24 of circuit 19 recognizes signal (o) to be the address signal of its own system and doubling switching circuit 16 attains the switching between the in-use system and stand-by system.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4537378A JPS592942B2 (en) | 1978-04-19 | 1978-04-19 | Multi data processing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4537378A JPS592942B2 (en) | 1978-04-19 | 1978-04-19 | Multi data processing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54137940A true JPS54137940A (en) | 1979-10-26 |
JPS592942B2 JPS592942B2 (en) | 1984-01-21 |
Family
ID=12717455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4537378A Expired JPS592942B2 (en) | 1978-04-19 | 1978-04-19 | Multi data processing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS592942B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5717072A (en) * | 1980-05-19 | 1982-01-28 | Data General Corp | Uncompetitive computer circuit netword having no master |
-
1978
- 1978-04-19 JP JP4537378A patent/JPS592942B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5717072A (en) * | 1980-05-19 | 1982-01-28 | Data General Corp | Uncompetitive computer circuit netword having no master |
JPH0131226B2 (en) * | 1980-05-19 | 1989-06-23 | Data General Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS592942B2 (en) | 1984-01-21 |
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