JPS553018A - Computer device - Google Patents
Computer deviceInfo
- Publication number
- JPS553018A JPS553018A JP7458178A JP7458178A JPS553018A JP S553018 A JPS553018 A JP S553018A JP 7458178 A JP7458178 A JP 7458178A JP 7458178 A JP7458178 A JP 7458178A JP S553018 A JPS553018 A JP S553018A
- Authority
- JP
- Japan
- Prior art keywords
- data
- unit
- transfer
- sent
- check
- 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
- Hardware Redundancy (AREA)
- Multi Processors (AREA)
Abstract
PURPOSE: To enhance the reliability of the composite calculation system by giving the periodical checking to the data transfer between the arithmetic devices connected to the common bus in order to monitor whether the transfer is normal or not.
CONSTITUTION: Unit check codes 21W23 are sent to common bus 11 periodically from arithmetic unit 12A and then received at arithmetic unit 12B. And immediately unit answer data 31W34 are sent to bus 11. When receiving the answer data by the next sending period after sending the unit check code, data transfer check function 15A checks the agreement between code 33 and 32. And when the agreement is obtained, the normal transfer is decided for the transfer of unit 12B decided by number 34 to then memorize the fact of reception. The preceding reception fact is checked in the next sending period, and the next check data is sent only when the reception is detected. And the next check data is sent after the warning is given to the fact of nonreception. In such way, the arithmetic unit is monitored, thus ensuring dealing of a large amount of the data with a high speed as well as high reliability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7458178A JPS553018A (en) | 1978-06-20 | 1978-06-20 | Computer device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7458178A JPS553018A (en) | 1978-06-20 | 1978-06-20 | Computer device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS553018A true JPS553018A (en) | 1980-01-10 |
Family
ID=13551267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7458178A Pending JPS553018A (en) | 1978-06-20 | 1978-06-20 | Computer device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS553018A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0227442A (en) * | 1988-07-15 | 1990-01-30 | Nec Corp | Fault detecting system |
-
1978
- 1978-06-20 JP JP7458178A patent/JPS553018A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0227442A (en) * | 1988-07-15 | 1990-01-30 | Nec Corp | Fault detecting system |
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