JPS6039162U - Backup detection device for semiconductor memory in phototypesetting machines, etc. - Google Patents
Backup detection device for semiconductor memory in phototypesetting machines, etc.Info
- Publication number
- JPS6039162U JPS6039162U JP12823383U JP12823383U JPS6039162U JP S6039162 U JPS6039162 U JP S6039162U JP 12823383 U JP12823383 U JP 12823383U JP 12823383 U JP12823383 U JP 12823383U JP S6039162 U JPS6039162 U JP S6039162U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor memory
- detection device
- volatile memory
- data
- backup
- 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
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は写真植字機の概略図、第２図は本考案に係る写
真植字機等の半導体メモリのバックアップ切れ検出装置
に用いられる制御部を例示したフローチャート、第３図
は同装置における制御部を制御する為のフローチャート
の一例を示している。
１２・・・制御部、１３・・・表示部、２０・・・演算
比較部、２２・・・記憶部、２４・・・電源。FIG. 1 is a schematic diagram of a phototypesetting machine, FIG. 2 is a flowchart illustrating a control unit used in a backup failure detection device for a semiconductor memory such as a phototypesetting machine according to the present invention, and FIG. 3 is a control unit in the same device. An example of a flowchart for controlling is shown. DESCRIPTION OF SYMBOLS 12... Control part, 13... Display part, 20... Arithmetic comparison part, 22... Storage part, 24... Power supply.
Claims (1)
源を有する制御部を具備し、該制御部は記憶部と演算比
較部を備え、上記記憶部には可変データ及びその揮発性
メモリの特定番地に予め定められたデータを記憶させて
おき、電源投入後に特定番地に記憶しているデータが定
められたデータであるか否かを上記演算比較部で比較し
、このバックアップ電源の良否を表示部等に表示して検
出すべく構成したことを特徴とする写真植字機等の半導
体メモリのバックアップ切れ検出装置。, comprising a volatile memory and a control unit having a power source for backing up the volatile memory, the control unit comprising a storage unit and an arithmetic comparison unit, and the storage unit stores variable data and a specific address of the volatile memory. Predetermined data is stored in advance, and after the power is turned on, the arithmetic comparison section compares whether the data stored at a specific address is the determined data or not, and the quality of this backup power source is determined by a display section, etc. What is claimed is: 1. A device for detecting backup failure of a semiconductor memory of a phototypesetting machine, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12823383U JPS6039162U (en) | 1983-08-18 | 1983-08-18 | Backup detection device for semiconductor memory in phototypesetting machines, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12823383U JPS6039162U (en) | 1983-08-18 | 1983-08-18 | Backup detection device for semiconductor memory in phototypesetting machines, etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6039162U true JPS6039162U (en) | 1985-03-18 |
Family
ID=30290971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12823383U Pending JPS6039162U (en) | 1983-08-18 | 1983-08-18 | Backup detection device for semiconductor memory in phototypesetting machines, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039162U (en) |
-
1983
- 1983-08-18 JP JP12823383U patent/JPS6039162U/en active Pending
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