JPS5693196A - Error detecting system of checking circuit - Google Patents
Error detecting system of checking circuitInfo
- Publication number
- JPS5693196A JPS5693196A JP17008679A JP17008679A JPS5693196A JP S5693196 A JPS5693196 A JP S5693196A JP 17008679 A JP17008679 A JP 17008679A JP 17008679 A JP17008679 A JP 17008679A JP S5693196 A JPS5693196 A JP S5693196A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- checking circuit
- gate
- circuit
- detecting system
- 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)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To eliminate a redundant memory and then realize a detection for the circuits relating to error detection, by installing a prescribed by-pass circuit to the memory.
CONSTITUTION: The device is provided with the gate 14 to give a bypass to the data given from the writing register 6 to the memory 1 and the gate 15 to give a bypass to the code from the Hamming code generating circuit 5 to the memory 1, the inverter 18 which gives the ON/OFF control to the gates 14 and 15. Each gate is turned off in the normal operation mode and then turned on in the error detection diagnosis mode. As a result, the parity bit, the Hamming code and the data are transmitted to the parity checking circuit 8 and the Hamming checking circuit 9 with no intervention of the memory 1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17008679A JPS5693196A (en) | 1979-12-26 | 1979-12-26 | Error detecting system of checking circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17008679A JPS5693196A (en) | 1979-12-26 | 1979-12-26 | Error detecting system of checking circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5693196A true JPS5693196A (en) | 1981-07-28 |
Family
ID=15898378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17008679A Pending JPS5693196A (en) | 1979-12-26 | 1979-12-26 | Error detecting system of checking circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5693196A (en) |
Cited By (3)
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 |
JPS60173647A (en) * | 1984-02-17 | 1985-09-07 | Fujitsu Ltd | Detecting system of error generating part of information processing unit |
JPH02148342A (en) * | 1988-11-30 | 1990-06-07 | Yokogawa Medical Syst Ltd | Memory for look-up table |
-
1979
- 1979-12-26 JP JP17008679A patent/JPS5693196A/en active Pending
Cited By (4)
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 |
JPS60173647A (en) * | 1984-02-17 | 1985-09-07 | Fujitsu Ltd | Detecting system of error generating part of information processing unit |
JPH0377546B2 (en) * | 1984-02-17 | 1991-12-10 | Fujitsu Ltd | |
JPH02148342A (en) * | 1988-11-30 | 1990-06-07 | Yokogawa Medical Syst Ltd | Memory for look-up table |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5539994A (en) | Multiprocessor system | |
JPS5537654A (en) | Information processor | |
JPS5693196A (en) | Error detecting system of checking circuit | |
JPS5694596A (en) | Memory control system | |
JPS5593596A (en) | Memory unit | |
JPS5637899A (en) | Memory malfunction detection system | |
JPS5376637A (en) | Diagnostic system of memory device only for reading | |
JPS55115148A (en) | Error detection and correction system | |
JPS5452950A (en) | Error detecting/correcting system | |
JPS55153199A (en) | Diagnostic unit for memory unit | |
JPS55162162A (en) | Diagnostic system for error detecting-correcting circuit | |
JPS569847A (en) | Instruction retry processing control system | |
JPS5634194A (en) | Memory unit | |
JPS5452938A (en) | Channel control system | |
JPS5282153A (en) | Data check system for information processing unit | |
JPS57176454A (en) | Microprogram processing system | |
JPS54129948A (en) | Data processor | |
JPS5422137A (en) | Bus line chekcing device | |
JPS5641598A (en) | Malfunction detecting circuit | |
JPS55139699A (en) | Error detection system of memory unit | |
JPS5464442A (en) | Defective bit discriminating circuit of erase type | |
JPS5727342A (en) | Error checking system for error detecting correcting circuit | |
JPS5667426A (en) | Processing system for failed data | |
JPS54124947A (en) | Error check system of arithmetic circuit | |
JPS5413229A (en) | Parity inspection system |