JPH0238641U - - Google Patents
Info
- Publication number
- JPH0238641U JPH0238641U JP11670088U JP11670088U JPH0238641U JP H0238641 U JPH0238641 U JP H0238641U JP 11670088 U JP11670088 U JP 11670088U JP 11670088 U JP11670088 U JP 11670088U JP H0238641 U JPH0238641 U JP H0238641U
- Authority
- JP
- Japan
- Prior art keywords
- section
- rom
- power supply
- storage unit
- writing device
- 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
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Description
第１図は本考案による記憶保護装置の一実施例
のブロツク図、第２図は従来の記憶保護装置のブ
ロツク図である。図中、１は電源部、２は入出力
制御部、３は中央処理部、４は電源異常検出部、
５はＲＡＭ記憶部、６はＲＯＭ記憶部、７はバツ
テリー部、８はＲＯＭ書き装置、９はＲＯＭ部、
Ａは電源供給ライン、Ｂはデータバス、Ｃは電源
異常信号、Ｄは切換信号、Ｅはバツテリー電源供
給ライン、ＦはＲＯＭ書きデータである。なお、
図中同一あるいは相当部分には同一符号を付して
示してある。
FIG. 1 is a block diagram of an embodiment of a storage protection device according to the present invention, and FIG. 2 is a block diagram of a conventional storage protection device. In the figure, 1 is a power supply section, 2 is an input/output control section, 3 is a central processing section, 4 is a power supply abnormality detection section,
5 is a RAM storage section, 6 is a ROM storage section, 7 is a battery section, 8 is a ROM writing device, 9 is a ROM section,
A is a power supply line, B is a data bus, C is a power abnormality signal, D is a switching signal, E is a battery power supply line, and F is data written to the ROM. In addition,
Identical or equivalent parts in the figures are designated by the same reference numerals.
Claims (1)
源部と電源異常検出部とＲＯＭ（Ｒｅａｄ Ｏｎ
ｌｙ Ｍｅ−ｍｏｒｙ）記憶部とＲＡＭ（Ｒａｎ
ｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）記憶部か
らの構成で演算処理を実行する場合において、Ｒ
ＯＭにデータを書き込めるＲＯＭ書き装置とＲＯ
Ｍ書き装置によりデータが書き込めることができ
るＲＯＭ部を有することを特徴とした記憶保護装
置。 An electronic computer has an input/output control section, a central processing section, a power supply section, a power supply abnormality detection section, and a ROM (Read On
ly Me-mory) storage unit and RAM (Ran
dom Access Memory) When performing arithmetic processing with the configuration from the storage unit, R
ROM writing device and RO that can write data to OM
A storage protection device characterized by having a ROM section into which data can be written by an M writing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11670088U JPH0238641U (en) | 1988-09-05 | 1988-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11670088U JPH0238641U (en) | 1988-09-05 | 1988-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0238641U true JPH0238641U (en) | 1990-03-14 |
Family
ID=31359476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11670088U Pending JPH0238641U (en) | 1988-09-05 | 1988-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238641U (en) |
-
1988
- 1988-09-05 JP JP11670088U patent/JPH0238641U/ja active Pending
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