JPS5642865A - Program runaway detecting circuit of microcomputer - Google Patents
Program runaway detecting circuit of microcomputerInfo
- Publication number
- JPS5642865A JPS5642865A JP11954779A JP11954779A JPS5642865A JP S5642865 A JPS5642865 A JP S5642865A JP 11954779 A JP11954779 A JP 11954779A JP 11954779 A JP11954779 A JP 11954779A JP S5642865 A JPS5642865 A JP S5642865A
- Authority
- JP
- Japan
- Prior art keywords
- runaway
- bus line
- given
- detecting circuit
- line
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To detect the runaway of the program for the computer, by giving a monitor to the level change of the signal line which does not work when a normal state is given on the bus line connected to the computer.
CONSTITUTION: The microcomputer incorporates the ROM2, RAM3, I/04 and CPU5 each centering on the bus line 1. Then the runaway detecting circuit 6 is connected to the bus line 1 to detect the particular operation different from that of the normal time when the runaway is given. In other words, a monitor is given to the logic level of one or more pieces of signal lines which does not work at the normal line on the bus line, and the runaway can be detected from the change of the logic level. This signal line is selected at the areas of a proper number of secure a detection in a more assured and quicker way. Thus the damage due to the runaway can be minimized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11954779A JPS5642865A (en) | 1979-09-17 | 1979-09-17 | Program runaway detecting circuit of microcomputer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11954779A JPS5642865A (en) | 1979-09-17 | 1979-09-17 | Program runaway detecting circuit of microcomputer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642865A true JPS5642865A (en) | 1981-04-21 |
Family
ID=14763998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11954779A Pending JPS5642865A (en) | 1979-09-17 | 1979-09-17 | Program runaway detecting circuit of microcomputer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642865A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0524457U (en) * | 1991-09-13 | 1993-03-30 | スズキ株式会社 | Vehicle harness protection structure |
KR100335714B1 (en) * | 1993-09-25 | 2002-11-13 | 로베르트 보쉬 게엠베하 | Micro Computer |
-
1979
- 1979-09-17 JP JP11954779A patent/JPS5642865A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0524457U (en) * | 1991-09-13 | 1993-03-30 | スズキ株式会社 | Vehicle harness protection structure |
KR100335714B1 (en) * | 1993-09-25 | 2002-11-13 | 로베르트 보쉬 게엠베하 | Micro Computer |
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