JPS5668998A - Multiprocessor - Google Patents
MultiprocessorInfo
- Publication number
- JPS5668998A JPS5668998A JP14332979A JP14332979A JPS5668998A JP S5668998 A JPS5668998 A JP S5668998A JP 14332979 A JP14332979 A JP 14332979A JP 14332979 A JP14332979 A JP 14332979A JP S5668998 A JPS5668998 A JP S5668998A
- Authority
- JP
- Japan
- Prior art keywords
- reference request
- main memory
- processors
- case
- flop
- 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
Landscapes
- Debugging And Monitoring (AREA)
- Multi Processors (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To detect the mechanical fault through a simultaneous occurrence of the reference request, by giving a control so that the reference request may not be delivered simultaneously to the main memory in case the same main memory is shared with several processors.
CONSTITUTION: The control circuit which decides the reference request to the main memory in the system in which the same main memory is shared with several processors prevents the simultaneous occurrence of the reference request at both the processors 0 and 1. In case the reference request is being processed at the processor 0, the flip-flop 12 is set. Then the reference request generated at the processor 1 is inhibited by the reverse signal 26 of the flip-flop 12 and via the AND gate 14. In case the reference request is being processed at one side when the reference request is generated at the other side, a mechanical fault occurs. Then the AND gates 13 and 16 informs the fault to each processors.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54143329A JPS607304B2 (en) | 1979-11-07 | 1979-11-07 | multiprocessing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54143329A JPS607304B2 (en) | 1979-11-07 | 1979-11-07 | multiprocessing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5668998A true JPS5668998A (en) | 1981-06-09 |
JPS607304B2 JPS607304B2 (en) | 1985-02-23 |
Family
ID=15336241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54143329A Expired JPS607304B2 (en) | 1979-11-07 | 1979-11-07 | multiprocessing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607304B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06235404A (en) * | 1993-02-09 | 1994-08-23 | Mitsubishi Heavy Ind Ltd | Fluid pressure servo valve |
-
1979
- 1979-11-07 JP JP54143329A patent/JPS607304B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS607304B2 (en) | 1985-02-23 |
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