JPS6462736A - Error detecting circuit - Google Patents
Error detecting circuitInfo
- Publication number
- JPS6462736A JPS6462736A JP62220620A JP22062087A JPS6462736A JP S6462736 A JPS6462736 A JP S6462736A JP 62220620 A JP62220620 A JP 62220620A JP 22062087 A JP22062087 A JP 22062087A JP S6462736 A JPS6462736 A JP S6462736A
- Authority
- JP
- Japan
- Prior art keywords
- parity
- error
- signal
- circuit
- data
- 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
- Detection And Correction Of Errors (AREA)
Abstract
PURPOSE:To detect a place where an error is generated, and to easily execute an error processing and a problem analysis in a short time, by checking the legality of a data in both at the time of write and at the time of read-out to and from a storing circuit. CONSTITUTION:A parity generating circuit 1 inputs a data 11 from an input data 10 and outputs a parity generating signal 13, and an exclusive OR circuit 2 outputs an input data error signal 21, when a discrepancy of a parity signal 12 in the input data 10, and the parity generating signal 13 is detected. An output data checking circuit 4 executes a parity check by parity checking circuits 41, 42 by each of a data 31 in an output data which has been read out of a storing circuit 3, a parity signal 32 and a parity generating signal 33, and outputs an output data error signal 44 from an AN circuit 43, when both the parity checks have shown an error, respectively. In such a way, since a place where an error has been generated can be detected, an error processing is facilitated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220620A JPS6462736A (en) | 1987-09-02 | 1987-09-02 | Error detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220620A JPS6462736A (en) | 1987-09-02 | 1987-09-02 | Error detecting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6462736A true JPS6462736A (en) | 1989-03-09 |
Family
ID=16753825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62220620A Pending JPS6462736A (en) | 1987-09-02 | 1987-09-02 | Error detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6462736A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04153838A (en) * | 1990-10-18 | 1992-05-27 | Fujitsu Ltd | Error check circuit for dual system |
JPH05108386A (en) * | 1991-10-17 | 1993-04-30 | Nec Corp | Information processor |
US5797275A (en) * | 1993-12-22 | 1998-08-25 | Telefonaktiebolaget Lm Ericsson | Air-cooling system |
-
1987
- 1987-09-02 JP JP62220620A patent/JPS6462736A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04153838A (en) * | 1990-10-18 | 1992-05-27 | Fujitsu Ltd | Error check circuit for dual system |
JPH05108386A (en) * | 1991-10-17 | 1993-04-30 | Nec Corp | Information processor |
US5797275A (en) * | 1993-12-22 | 1998-08-25 | Telefonaktiebolaget Lm Ericsson | Air-cooling system |
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