JPS55122297A - Memory system - Google Patents
Memory systemInfo
- Publication number
- JPS55122297A JPS55122297A JP2630479A JP2630479A JPS55122297A JP S55122297 A JPS55122297 A JP S55122297A JP 2630479 A JP2630479 A JP 2630479A JP 2630479 A JP2630479 A JP 2630479A JP S55122297 A JPS55122297 A JP S55122297A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- area
- defective
- make
- accessed
- 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
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To make it possible to establish easily data maintenance by locking a defective memory area of a memory and reporting this lock to the access source when the defective memory area of the memory is accessed.
CONSTITUTION: When an area is tried to be accessed where parity error and a memory miss occur frequently in memory system 1, NAND gate 16 is operated by the input of address bus 14 and the output of memory lock register 12, and timing circuit 15 in the memory is interlocked to make read/write impossible. Simultaneously, the memory system itself returns this interlocking to the unit which the system tries to access, so that the program can detect the state os system 1 again to make re-configuration of the memory layout possible. Then, 0 and 1 are set to register 2 correspondingly to the address of system 1 previously, for example, for the good area of system 1 and the defective area of system 1 respectively.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2630479A JPS55122297A (en) | 1979-03-07 | 1979-03-07 | Memory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2630479A JPS55122297A (en) | 1979-03-07 | 1979-03-07 | Memory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55122297A true JPS55122297A (en) | 1980-09-19 |
Family
ID=12189610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2630479A Pending JPS55122297A (en) | 1979-03-07 | 1979-03-07 | Memory system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55122297A (en) |
-
1979
- 1979-03-07 JP JP2630479A patent/JPS55122297A/en active Pending
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