JPS55160399A - Error display unit - Google Patents
Error display unitInfo
- Publication number
- JPS55160399A JPS55160399A JP6506779A JP6506779A JPS55160399A JP S55160399 A JPS55160399 A JP S55160399A JP 6506779 A JP6506779 A JP 6506779A JP 6506779 A JP6506779 A JP 6506779A JP S55160399 A JPS55160399 A JP S55160399A
- Authority
- JP
- Japan
- Prior art keywords
- error
- parity
- memory
- controller
- uncorrectable
- 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)
Abstract
PURPOSE: To make it possible to distinguish between a parity error and memory fault securely by displaying the parity error and uncorrectable error respectively.
CONSTITUTION: Between a main body, e.g. CPU5 and memory controller 6, an interface on a parity bit system is arranged and controller 6, when an error of write data or a parity bit is detected, writes an uncorrectable error code in memory 7. Then, when parity checking circuit 11 of controller 6 makes a check and the parity error is found, it is displayed on display circuit 15. When detected by error detecting-correcting circuit 13, the uncorrectable error is displayed on display circuit 16. Thus, it is made possible to discriminate securely whether the uncorrectable error is caused by the parity error or memory fault.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6506779A JPS55160399A (en) | 1979-05-28 | 1979-05-28 | Error display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6506779A JPS55160399A (en) | 1979-05-28 | 1979-05-28 | Error display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55160399A true JPS55160399A (en) | 1980-12-13 |
Family
ID=13276225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6506779A Pending JPS55160399A (en) | 1979-05-28 | 1979-05-28 | Error display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160399A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002041158A1 (en) * | 2000-11-20 | 2002-05-23 | Matsushita Electric Industrial Co., Ltd. | Noncontact reader/writer, information communication system using the same, and management system using the same |
-
1979
- 1979-05-28 JP JP6506779A patent/JPS55160399A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002041158A1 (en) * | 2000-11-20 | 2002-05-23 | Matsushita Electric Industrial Co., Ltd. | Noncontact reader/writer, information communication system using the same, and management system using the same |
EP1338975A1 (en) * | 2000-11-20 | 2003-08-27 | Matsushita Electric Industrial Co., Ltd. | Noncontact reader/writer, information communication system using the same, and management system using the same |
EP1338975A4 (en) * | 2000-11-20 | 2005-01-12 | Matsushita Electric Ind Co Ltd | Noncontact reader/writer, information communication system using the same, and management system using the same |
US6899270B2 (en) | 2000-11-20 | 2005-05-31 | Matsushita Electric Industrial Co., Ltd. | Noncontact reader/writer, information communication system using the same, and management system using the same |
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