JPS636600U - - Google Patents
Info
- Publication number
- JPS636600U JPS636600U JP10056586U JP10056586U JPS636600U JP S636600 U JPS636600 U JP S636600U JP 10056586 U JP10056586 U JP 10056586U JP 10056586 U JP10056586 U JP 10056586U JP S636600 U JPS636600 U JP S636600U
- Authority
- JP
- Japan
- Prior art keywords
- data
- rewrites
- limit
- counter
- block
- 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
- 238000010586 diagram Methods 0.000 description 5
- 238000013500 data storage Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Description
第１図はこの考案の一実施例による不揮発性メ
モリへのデータ格納装置を示すブロツク接続図、
第２図は不揮発性メモリの構造を示す説明図、第
３図はデータ格納システム全体のブロツク接続図
、第４図はデータの書換え処理のフローチヤート
、第５図はタスク処理中にデータの読み書きを実
行する従来のコンピユータシステムのブロツク接
続図、第６図は従来の記憶素子のメモリマツプ図
である。
１１はデータ書換信号発生装置、１２はメモリ
書換え制御手段、１３は不揮発性メモリ、１４は
データエリア、１５は退避エリア、１６は回数制
限判定手段、１７はエリア移動手段。
FIG. 1 is a block connection diagram showing a data storage device in a non-volatile memory according to an embodiment of the invention;
Figure 2 is an explanatory diagram showing the structure of nonvolatile memory, Figure 3 is a block connection diagram of the entire data storage system, Figure 4 is a flowchart of data rewriting processing, and Figure 5 is reading and writing of data during task processing. FIG. 6 is a block connection diagram of a conventional computer system that executes a conventional computer system, and FIG. 6 is a memory map diagram of a conventional storage element. Reference numeral 11 denotes a data rewrite signal generation device, 12 a memory rewrite control means, 13 a nonvolatile memory, 14 a data area, 15 a save area, 16 a number limit determining means, and 17 an area moving means.
Claims (1)
を計数するカウンタをブロツクとして有する、初
めにデータが格納されるデータエリアおよび初め
には何もデータが書き込まれていない退避エリア
を備えた不揮発性メモリと、上記データの書換え
指示に従つて指定されたアドレスに対応する上記
データエリアにおけるブロツクのカウンタから、
データの書換え回数を読み出し、その書換え回数
が制限回数以下か否かを判定する回数制限判定手
段と、この回数制限判定手段により制限回数以下
と判定されたとき、上記カウンタの書換え回数を
＋１にして指定されたデータの書換えを行うとと
もと、上記書換え回数が制限回数に達したと判定
されたとき、上記指定されたデータを上記退避エ
リアのブロツクに書込ませるメモリ書換え制御手
段とを備えた不揮発性メモリへのデータ格納装置
。 a non-volatile memory having at least data and a counter for counting the number of times the data is rewritten as a block, a data area in which data is initially stored, and a save area in which no data is initially written; From the counter of the block in the above data area corresponding to the address specified according to the data rewriting instruction,
a number limit determining means for reading the number of rewrites of data and determining whether the number of rewrites is less than or equal to the limit number; and when the number limit determining means determines that the number of rewrites is less than the limit number, the number of rewrites on the counter is set to +1; Memory rewrite control means for rewriting the specified data and writing the specified data to the block in the save area when it is determined that the number of rewrites has reached the limit number of times. A device for storing data in non-volatile memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10056586U JPS636600U (en) | 1986-06-30 | 1986-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10056586U JPS636600U (en) | 1986-06-30 | 1986-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS636600U true JPS636600U (en) | 1988-01-16 |
Family
ID=30970508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10056586U Pending JPS636600U (en) | 1986-06-30 | 1986-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04248646A (en) * | 1990-12-28 | 1992-09-04 | Internatl Business Mach Corp <Ibm> | Durable control for solid file |
| JPH0527924A (en) * | 1991-07-12 | 1993-02-05 | Internatl Business Mach Corp <Ibm> | External storage system using semiconductor memory and control method thereof |
-
1986
- 1986-06-30 JP JP10056586U patent/JPS636600U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04248646A (en) * | 1990-12-28 | 1992-09-04 | Internatl Business Mach Corp <Ibm> | Durable control for solid file |
| JPH0527924A (en) * | 1991-07-12 | 1993-02-05 | Internatl Business Mach Corp <Ibm> | External storage system using semiconductor memory and control method thereof |
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