JPS62212854A - Automatic error correcting memory device - Google Patents
Automatic error correcting memory deviceInfo
- Publication number
- JPS62212854A JPS62212854A JP61056420A JP5642086A JPS62212854A JP S62212854 A JPS62212854 A JP S62212854A JP 61056420 A JP61056420 A JP 61056420A JP 5642086 A JP5642086 A JP 5642086A JP S62212854 A JPS62212854 A JP S62212854A
- Authority
- JP
- Japan
- Prior art keywords
- error
- data
- memory
- circuit
- corrected
- 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 correct soft errors to be increased in accordance with time passage by specifying the addresses of a memory element and an error correction detecting memory element to write error-corrected data in all the address spaces of the memory element and the error correction detecting memory element periodically at the time of an automatic reading data correction mode.
CONSTITUTION: Data read out by the memory element 2 are sent to an error correcting circuit 5 and data read out by the error correction detecting memory element 3 are detected about the existence of an error by an error detecting circuit 6. When there is no error, the data of the memory element 2 are transferred to a data bus D, but if there is any error, the error is corrected by the circuit 5 and the error-corrected data are transferred to the data bus D and also rewritten in the memory element 2 through a data multiplexer 11. The corrected data are also sent to an error correction detecting bit forming circuit 4 through the data multiplexer 11 and error correction detecting bit data are formed again and written in the circuit 6 and the element 3.
COPYRIGHT: (C)1987,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61056420A JPS62212854A (en) | 1986-03-14 | 1986-03-14 | Automatic error correcting memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61056420A JPS62212854A (en) | 1986-03-14 | 1986-03-14 | Automatic error correcting memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62212854A true JPS62212854A (en) | 1987-09-18 |
Family
ID=13026609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61056420A Pending JPS62212854A (en) | 1986-03-14 | 1986-03-14 | Automatic error correcting memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62212854A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0224752A (en) * | 1988-06-15 | 1990-01-26 | Internatl Business Mach Corp <Ibm> | Smart memory card |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55101199A (en) * | 1979-01-22 | 1980-08-01 | Hitachi Ltd | Memory refresh unit |
JPS57100694A (en) * | 1980-12-12 | 1982-06-22 | Toshiba Corp | Storage device |
-
1986
- 1986-03-14 JP JP61056420A patent/JPS62212854A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55101199A (en) * | 1979-01-22 | 1980-08-01 | Hitachi Ltd | Memory refresh unit |
JPS57100694A (en) * | 1980-12-12 | 1982-06-22 | Toshiba Corp | Storage device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0224752A (en) * | 1988-06-15 | 1990-01-26 | Internatl Business Mach Corp <Ibm> | Smart memory card |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5637896A (en) | Error correction system | |
JPS62251949A (en) | Error correcting method for memory device | |
JPS62212854A (en) | Automatic error correcting memory device | |
JPS5555499A (en) | Memory control unit | |
JPS6288044A (en) | Memory control system | |
JPH01290200A (en) | Lsi memory with self-correcting function | |
JPS62242258A (en) | Storage device | |
JPS5622291A (en) | Bit error correction method for memory | |
JPS57152598A (en) | Data processing device | |
JPH0383300A (en) | Semiconductor memory | |
JPH04289599A (en) | Nonvolatile memory | |
JPS61272851A (en) | Storage device | |
JPS63271555A (en) | Storage control system | |
JPS61175743A (en) | Memory control system | |
JPS56163600A (en) | Memory control system | |
JPS61123957A (en) | Storage device | |
JPS61246854A (en) | Error processing system | |
JPS59229799A (en) | Memory device | |
JPS61161564A (en) | Storage device | |
JPH0434632A (en) | Memory system | |
JPS60113394A (en) | Error correction system | |
JPS63753A (en) | Test system for memory error checking and correcting circuit | |
JPH0229839A (en) | Microprogram control device | |
JPS5668997A (en) | Error correction system | |
JPS5693191A (en) | Memory error correction and automatic diagnosis system |