JPS5836432U - Power restoration detection device for microcomputer processing system - Google Patents
Power restoration detection device for microcomputer processing systemInfo
- Publication number
- JPS5836432U JPS5836432U JP12781881U JP12781881U JPS5836432U JP S5836432 U JPS5836432 U JP S5836432U JP 12781881 U JP12781881 U JP 12781881U JP 12781881 U JP12781881 U JP 12781881U JP S5836432 U JPS5836432 U JP S5836432U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- detection device
- processing system
- power restoration
- switch
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
、第１図は本考案による回路組成および電源供給系の原
理を説明するために示した図、第２図は第１図装置の復
電検知の原理を示すフロチャートである。
２・・・・・・入出力バス、３．４・・・・・・ランダ
ムアクセ゛スメモリ（ＲＡＭ）、５・・・・・・リード
オンリメモリ（ＲＯＭ）、６・・・・・・交流電源、８
・・・・・・非常電源、１０・・・・・・システム電源
スィッチ、１１・・・・・・スイン □チ。, FIG. 1 is a diagram shown to explain the principle of the circuit composition and power supply system according to the present invention, and FIG. 2 is a flowchart showing the principle of power recovery detection of the device shown in FIG. 1. 2...Input/output bus, 3.4...Random access memory (RAM), 5...Read only memory (ROM), 6...AC power supply, 8
... Emergency power supply, 10 ... System power switch, 11 ... Switch □ch.
Claims (1)
続される少なくとも２個の揮発性記憶部分および１個の
不揮発性記憶部分を有し、かつ該２個の揮発性記憶部分
のうち一方の揮発性記憶部分にシステム電源と並列に非
常電源を与えるとともに、他方の揮発性記憶部分にシス
テム電源スィッチに同期投入されるスイッチを介して前
記非常電源をシステム電源と並列に供給し、該スイッチ
投入後前記他方の揮発性記憶部分の記憶内容とシステム
電源が断たれる前の記憶内容とが同一の際に復電信号を
発生する判定部分を設けるようにしたことを特徴とする
マイクロコンピュータ処理系統の復電検出装置。The microcomputer system has at least two volatile storage sections and one non-volatile storage section connected to an input/output bus in the microcomputer system, and one of the two volatile storage sections is connected to a system. An emergency power supply is applied in parallel with the power supply, and the emergency power supply is supplied in parallel with the system power supply to the other volatile memory section through a switch that is turned on in synchronization with the system power switch, and after the switch is turned on, the other volatile memory section is supplied with the emergency power supply in parallel with the system power supply. 1. A power restoration detection device for a microcomputer processing system, comprising a determination part that generates a power restoration signal when the storage content of the storage part is the same as the storage content before system power is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12781881U JPS5836432U (en) | 1981-08-31 | 1981-08-31 | Power restoration detection device for microcomputer processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12781881U JPS5836432U (en) | 1981-08-31 | 1981-08-31 | Power restoration detection device for microcomputer processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5836432U true JPS5836432U (en) | 1983-03-09 |
Family
ID=29921532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12781881U Pending JPS5836432U (en) | 1981-08-31 | 1981-08-31 | Power restoration detection device for microcomputer processing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836432U (en) |
-
1981
- 1981-08-31 JP JP12781881U patent/JPS5836432U/en active Pending
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