JPS5693192A - Diagnosis system - Google Patents
Diagnosis systemInfo
- Publication number
- JPS5693192A JPS5693192A JP16903679A JP16903679A JPS5693192A JP S5693192 A JPS5693192 A JP S5693192A JP 16903679 A JP16903679 A JP 16903679A JP 16903679 A JP16903679 A JP 16903679A JP S5693192 A JPS5693192 A JP S5693192A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- pass route
- eccg
- eccc
- memory device
- 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
- Tests Of Electronic Circuits (AREA)
- Detection And Correction Of Errors (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE: To realize a confirmation for the normalcy of each component circuit of a memory device and to indicate a faulty area clearly as well as reduce the repair time, by providing a by-pass route to a circuit forming the memory device.
CONSTITUTION: The by-pass route (p), switching P1 and P2 are provided to the error correction code generating circuit ECCG connected to the memory circuit M; the by-pass route (q), and switching gates Q1 and Q2 are provided to the data correction circuit ECCC. Setting of the dividing signals P and Q are done in the combination of 1 and 0 to confirm the performance for each of the circuit M, circuit ECCG and circuit ECCC.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16903679A JPS5693192A (en) | 1979-12-25 | 1979-12-25 | Diagnosis system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16903679A JPS5693192A (en) | 1979-12-25 | 1979-12-25 | Diagnosis system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5693192A true JPS5693192A (en) | 1981-07-28 |
JPS6329299B2 JPS6329299B2 (en) | 1988-06-13 |
Family
ID=15879121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16903679A Granted JPS5693192A (en) | 1979-12-25 | 1979-12-25 | Diagnosis system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5693192A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011952A (en) * | 1983-07-01 | 1985-01-22 | Mitsubishi Electric Corp | Semiconductor memory device with error correcting means |
JPS62156734A (en) * | 1985-12-28 | 1987-07-11 | Toshiba Corp | Logic circuit |
JPH01183741A (en) * | 1988-01-18 | 1989-07-21 | Fujitsu Ltd | Diagnosis system for data processing circuit |
JPH01201736A (en) * | 1988-02-08 | 1989-08-14 | Mitsubishi Electric Corp | Microcomputer |
JP2008198341A (en) * | 2007-02-09 | 2008-08-28 | Hynix Semiconductor Inc | Data error measuring circuit for semiconductor memory |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02237304A (en) * | 1989-03-10 | 1990-09-19 | Matsushita Electric Ind Co Ltd | Arithmetic unit |
-
1979
- 1979-12-25 JP JP16903679A patent/JPS5693192A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011952A (en) * | 1983-07-01 | 1985-01-22 | Mitsubishi Electric Corp | Semiconductor memory device with error correcting means |
JPS62156734A (en) * | 1985-12-28 | 1987-07-11 | Toshiba Corp | Logic circuit |
JPH01183741A (en) * | 1988-01-18 | 1989-07-21 | Fujitsu Ltd | Diagnosis system for data processing circuit |
JPH01201736A (en) * | 1988-02-08 | 1989-08-14 | Mitsubishi Electric Corp | Microcomputer |
JP2008198341A (en) * | 2007-02-09 | 2008-08-28 | Hynix Semiconductor Inc | Data error measuring circuit for semiconductor memory |
US8370708B2 (en) | 2007-02-09 | 2013-02-05 | SK Hynix Inc. | Data error measuring circuit for semiconductor memory apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6329299B2 (en) | 1988-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5693192A (en) | Diagnosis system | |
JPS5332A (en) | Memory redundance system | |
JPS5321542A (en) | Error data memory circuit | |
JPS53114680A (en) | Integrated circuit | |
JPS5431212A (en) | Monitor circuit for digital signal transmission line | |
JPS51147206A (en) | Data communication system employing photocoupler | |
JPS5326635A (en) | Setting system for unit address | |
JPS52112245A (en) | Data terminal unit | |
JPS5436147A (en) | Control unit for microprogram | |
JPS5443434A (en) | Diagnosis order deciding system | |
JPS5312241A (en) | Buffer memory unit | |
JPS52123141A (en) | Device control system | |
JPS5337A (en) | Control system for input/output unit | |
JPS5315723A (en) | Priority selection circuit | |
JPS53111255A (en) | Check system for interface control signal | |
JPS538514A (en) | Resending requesting unit for transmission error | |
JPS527618A (en) | Satellite circuit quality monitoring system | |
JPS5315722A (en) | Input/output interrupption control system | |
JPS52130261A (en) | Scanning unit | |
JPS5384621A (en) | Error resending system of picture signal | |
JPS5326631A (en) | Logic circuit diagnosis system for main memory control uni t | |
JPS5314288A (en) | Flux control system | |
JPS53120346A (en) | Correction circuit for double error | |
JPS5311548A (en) | Error information transfer control system | |
JPS5374806A (en) | Error correction encoder |