JPS5949250U - Central processing unit reset circuit - Google Patents
Central processing unit reset circuitInfo
- Publication number
- JPS5949250U JPS5949250U JP14259282U JP14259282U JPS5949250U JP S5949250 U JPS5949250 U JP S5949250U JP 14259282 U JP14259282 U JP 14259282U JP 14259282 U JP14259282 U JP 14259282U JP S5949250 U JPS5949250 U JP S5949250U
- Authority
- JP
- Japan
- Prior art keywords
- processing unit
- central processing
- detection circuit
- reset circuit
- unit reset
- 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
- Retry When Errors Occur (AREA)
- Control By Computers (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図はこの考案による中央処理装置のリセット回路の
一構成例を示す回路図、第２図は第１図を説明するため
の波形図である。
１・・・・・・電源入力端子、５・・・・・・中央処理
装置、１０・・・・・・カウンタ（異常検出回路）、１
６・・・・・・電源投入検出回路、１７・・・・・・オ
ア回路（復帰回路）。FIG. 1 is a circuit diagram showing an example of the configuration of a reset circuit of a central processing unit according to this invention, and FIG. 2 is a waveform diagram for explaining FIG. 1. 1...Power input terminal, 5...Central processing unit, 10...Counter (abnormality detection circuit), 1
6...Power-on detection circuit, 17...OR circuit (return circuit).
Claims (1)
力する電源投入検出回路と、中央処理装置の動作信号を
検出し、この動作信号が所定期間変化しない時に前記中
央処理装置が異常であるとしてリセット信号を出力する
異常検出回路と、この異常検出回路および前記電源投入
検出回路のうちの少なくともいずれか一方がリセット信
号を出力した時に前記中央処理装置をリセットする復帰
回路と−を具備したことを特徴とする中央処理装置のリ
セット回路。A power-on detection circuit detects when the power is turned on and outputs a reset signal, and detects an operating signal of the central processing unit, and determines that the central processing unit is abnormal when the operating signal does not change for a predetermined period of time. an abnormality detection circuit that outputs a reset signal; and a recovery circuit that resets the central processing unit when at least one of the abnormality detection circuit and the power-on detection circuit outputs the reset signal. Features a central processing unit reset circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14259282U JPS5949250U (en) | 1982-09-22 | 1982-09-22 | Central processing unit reset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14259282U JPS5949250U (en) | 1982-09-22 | 1982-09-22 | Central processing unit reset circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5949250U true JPS5949250U (en) | 1984-04-02 |
Family
ID=30318567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14259282U Pending JPS5949250U (en) | 1982-09-22 | 1982-09-22 | Central processing unit reset circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949250U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564848A (en) * | 1979-06-22 | 1981-01-19 | Hitachi Ltd | Restart system for computer |
| JPS5786956A (en) * | 1980-11-19 | 1982-05-31 | Fuji Electric Co Ltd | Runaway stopping system of microcomputer |
-
1982
- 1982-09-22 JP JP14259282U patent/JPS5949250U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564848A (en) * | 1979-06-22 | 1981-01-19 | Hitachi Ltd | Restart system for computer |
| JPS5786956A (en) * | 1980-11-19 | 1982-05-31 | Fuji Electric Co Ltd | Runaway stopping system of microcomputer |
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