JPH0184147U - - Google Patents
Info
- Publication number
- JPH0184147U JPH0184147U JP1987179785U JP17978587U JPH0184147U JP H0184147 U JPH0184147 U JP H0184147U JP 1987179785 U JP1987179785 U JP 1987179785U JP 17978587 U JP17978587 U JP 17978587U JP H0184147 U JPH0184147 U JP H0184147U
- Authority
- JP
- Japan
- Prior art keywords
- processing unit
- central processing
- signal
- runaway
- control circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Debugging And Monitoring (AREA)
Description
第1図は本考案に係るマイクロコンピユータの
制御回路図、第2図は本考案の一実施例を示す回
路図、第3図、第4図は従来のマイクイコンピユ
ータの制御回路図である。
1……中央演算処理装置、2……トランジスタ
、4……暴走検出回路、5……リセツト入力切換
え回路、12……信号入力端子、16……リセツ
ト入力端子。
FIG. 1 is a control circuit diagram of a microcomputer according to the present invention, FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIGS. 3 and 4 are control circuit diagrams of a conventional microcomputer. DESCRIPTION OF SYMBOLS 1...Central processing unit, 2...Transistor, 4...Runaway detection circuit, 5...Reset input switching circuit, 12...Signal input terminal, 16...Reset input terminal.
Claims (1)
央演算処理装置をリセツトしてその暴走を解除す
る暴走検出回路を備えたマイクロコンピユータの
制御回路において、 中央演算処理装置からの信号に基づいて、その
リセツト端子を、中央演算処理装置がストツプモ
ードのときは信号入力端子側に、中央演算処理装
置が動作中のときは暴走検出回路の出力端子側に
切り換えるリセツト入力切換え回路を設けたこと
を特徴とするマイクロコンピユータの制御回路。[Scope of Claim for Utility Model Registration] In a control circuit for a microcomputer equipped with a runaway detection circuit that resets the central processing unit to release the runaway when no signal is output even after a predetermined period of time has elapsed, Based on the signal, the reset input switching circuit switches the reset terminal to the signal input terminal side when the central processing unit is in stop mode, and to the output terminal side of the runaway detection circuit when the central processing unit is operating. A control circuit for a microcomputer, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987179785U JPH0184147U (en) | 1987-11-26 | 1987-11-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987179785U JPH0184147U (en) | 1987-11-26 | 1987-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0184147U true JPH0184147U (en) | 1989-06-05 |
Family
ID=31471328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987179785U Pending JPH0184147U (en) | 1987-11-26 | 1987-11-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0184147U (en) |
-
1987
- 1987-11-26 JP JP1987179785U patent/JPH0184147U/ja active Pending