JPS5457924A - Data input device - Google Patents
Data input deviceInfo
- Publication number
- JPS5457924A JPS5457924A JP12547277A JP12547277A JPS5457924A JP S5457924 A JPS5457924 A JP S5457924A JP 12547277 A JP12547277 A JP 12547277A JP 12547277 A JP12547277 A JP 12547277A JP S5457924 A JPS5457924 A JP S5457924A
- Authority
- JP
- Japan
- Prior art keywords
- permanent fault
- faulty
- error
- never
- existence
- 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
Abstract
PURPOSE: To make it possible to detect the existence of a permanent fault by judging as a data error dependent upon the permanent fault when bits whose logical value have never been changed for a fixed time exist.
CONSTITUTION: Input signals are applied from transmission units 1a to 1c to gate circuits 2a to 2c in bit parallel and word series, and the output has a data error detected by error detector circuits 3a to 3c. This error detection signal stores a faulty one of transmission unit channel numbers 1a to 1c by faulty channel storage circuit 15, and this number is stored in state change memory unit 21. In case that data where the logical value of the faulty channel has never been changed for a fixed time exists, the output is read in permanent fault detection control circuit 24, so that the existence of the permanent fault can be detected
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12547277A JPS5457924A (en) | 1977-10-18 | 1977-10-18 | Data input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12547277A JPS5457924A (en) | 1977-10-18 | 1977-10-18 | Data input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5457924A true JPS5457924A (en) | 1979-05-10 |
Family
ID=14910921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12547277A Pending JPS5457924A (en) | 1977-10-18 | 1977-10-18 | Data input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5457924A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5548280U (en) * | 1978-09-25 | 1980-03-29 |
-
1977
- 1977-10-18 JP JP12547277A patent/JPS5457924A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5548280U (en) * | 1978-09-25 | 1980-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR910017300A (en) | Data communication interface and its communication method | |
JPS5750307A (en) | Time base correcting device | |
JPS55141823A (en) | Data read-out circuit | |
EP0234038A3 (en) | Apparatus for identifying the lru storage unit in a memory | |
JPS5321542A (en) | Error data memory circuit | |
JPS5457924A (en) | Data input device | |
JPS5499540A (en) | Malfunction detecting device for electronic circuit | |
SU473180A1 (en) | Device for testing comparison circuits | |
JPS5710846A (en) | Information processing equipment | |
JPS55163697A (en) | Memory device | |
JPS5690500A (en) | Semiconductor memory device | |
JPS5534380A (en) | Fail memory | |
JPS5641600A (en) | Detection system for memory capacity | |
JPS56103746A (en) | Information processor | |
JPS55139699A (en) | Error detection system of memory unit | |
JPS5537634A (en) | Integrated-circuit device | |
JPS5637899A (en) | Memory malfunction detection system | |
JPS5595449A (en) | Framing code detection circuit | |
JPS6464431A (en) | Input and output signal supervising circuit | |
JPS5353932A (en) | Fault detection system for memory address line | |
JPS54101630A (en) | Input/output information check system | |
JPS578999A (en) | Memory controller | |
JPS57169860A (en) | Address testing equipment | |
JPS57100696A (en) | Test system for memory | |
JPS6429122A (en) | Parallel/serial converting circuit |