JPS5680898A - Memory device - Google Patents
Memory deviceInfo
- Publication number
- JPS5680898A JPS5680898A JP15766779A JP15766779A JPS5680898A JP S5680898 A JPS5680898 A JP S5680898A JP 15766779 A JP15766779 A JP 15766779A JP 15766779 A JP15766779 A JP 15766779A JP S5680898 A JPS5680898 A JP S5680898A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- memory
- returned
- error
- time
- 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
- Techniques For Improving Reliability Of Storages (AREA)
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To execute an analysis and diagnosis of the failure easily and enhance the examination function by storing an operating signal before detecting an error by providing memory status memory part.
CONSTITUTION: In an operating processing device 1, a fixed time monitoring is carried out and of a signal 64 as a response signal 64 is not returned in this time, it is refered to a time out error. Because of an intermittent failure, when the signal 73 as a signal ANS is not returned, a signal 74 as a reading data DO is not returned and device 1 detects the signal 75 as a time out error ERR. In this case, a read write indicating signal 49 specifies the writing, and in a memory status memory portion 24, a signal 61 as a memory request ERQ, a signal 62 as a request accept signal ACPT and signals 64 and 66 as signals ANS, ERR are stored as status. When a signal 49 commands to read and starts to read the content from the memory portion 24, a time chart can be recorded as it is and the signal analysis as for in what period the error is caused is easily done.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15766779A JPS5680898A (en) | 1979-12-05 | 1979-12-05 | Memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15766779A JPS5680898A (en) | 1979-12-05 | 1979-12-05 | Memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680898A true JPS5680898A (en) | 1981-07-02 |
Family
ID=15654741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15766779A Pending JPS5680898A (en) | 1979-12-05 | 1979-12-05 | Memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680898A (en) |
-
1979
- 1979-12-05 JP JP15766779A patent/JPS5680898A/en active Pending
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