JPH0238640U - - Google Patents
Info
- Publication number
- JPH0238640U JPH0238640U JP11404088U JP11404088U JPH0238640U JP H0238640 U JPH0238640 U JP H0238640U JP 11404088 U JP11404088 U JP 11404088U JP 11404088 U JP11404088 U JP 11404088U JP H0238640 U JPH0238640 U JP H0238640U
- Authority
- JP
- Japan
- Prior art keywords
- data
- system memory
- storing
- input
- buffer
- 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
- 238000013500 data storage Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Description
第1図は本考案に係るデータの記憶保護装置の
一実施例を示すブロツク構成図、第2図はこの記
憶保護装置においてそのデータの書き込み処理動
作を示すフローチヤート、第3図は通常考えられ
るデータの記憶保護方式の一例を示すブロツク構
成図である。
1……CPU、4……システムメモリ、5……
RAMパツク、4―1,5―1……パリテイビツ
ト記憶部、6……EEPROMパツク、7,8…
…バツフア。
Fig. 1 is a block configuration diagram showing an embodiment of the data storage protection device according to the present invention, Fig. 2 is a flowchart showing the data write processing operation in this storage protection device, and Fig. 3 is a normally considered one. FIG. 2 is a block configuration diagram showing an example of a data storage protection method. 1...CPU, 4...System memory, 5...
RAM pack, 4-1, 5-1... Parity bit storage section, 6... EEPROM pack, 7, 8...
...Batsuhua.
Claims (1)
ビツトと共に記憶するシステムメモリと、このシ
ステムメモリへの供与データを第1のバツフアを
介して分岐入力してその分岐入力データをそれに
付加されるパリテイビツトと共に記憶するRAM
パツクと、前記システムメモリへの供与データを
第2のバツフアを介して分岐入力しその分岐入力
データを記憶するプグラマブルROMパツクとを
備えてなるデータの記憶保護装置。 a system memory for storing supplied data together with parity bits appended thereto; and a RAM for branching input of supplied data to the system memory via a first buffer and storing the branched input data together with parity bits appended thereto.
1. A data storage protection device comprising a programmable ROM pack for branching input of data provided to the system memory via a second buffer and storing the branched input data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11404088U JPH0238640U (en) | 1988-09-01 | 1988-09-01 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11404088U JPH0238640U (en) | 1988-09-01 | 1988-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0238640U true JPH0238640U (en) | 1990-03-14 |
Family
ID=31354424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11404088U Pending JPH0238640U (en) | 1988-09-01 | 1988-09-01 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0238640U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998399A (en) * | 1982-11-27 | 1984-06-06 | Casio Comput Co Ltd | Automatic backup system |
JPS6366797A (en) * | 1986-09-09 | 1988-03-25 | Oki Electric Ind Co Ltd | Memory control system |
JPS6385952A (en) * | 1986-09-30 | 1988-04-16 | Canon Inc | Data processor |
-
1988
- 1988-09-01 JP JP11404088U patent/JPH0238640U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998399A (en) * | 1982-11-27 | 1984-06-06 | Casio Comput Co Ltd | Automatic backup system |
JPS6366797A (en) * | 1986-09-09 | 1988-03-25 | Oki Electric Ind Co Ltd | Memory control system |
JPS6385952A (en) * | 1986-09-30 | 1988-04-16 | Canon Inc | Data processor |
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