JPS5769418A - Runaway detector - Google Patents
Runaway detectorInfo
- Publication number
- JPS5769418A JPS5769418A JP55145784A JP14578480A JPS5769418A JP S5769418 A JPS5769418 A JP S5769418A JP 55145784 A JP55145784 A JP 55145784A JP 14578480 A JP14578480 A JP 14578480A JP S5769418 A JPS5769418 A JP S5769418A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- level
- latch
- runaway
- terminal
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
PURPOSE:To constitute a detector at low cost only with hardware without spoiling reliability, by inhibiting the functions of a runaway detection part a prescribed period after the power source of a microcomputer-applied system is put to work. CONSTITUTION:With a reset switch 94 pushed, a signal from a gate 96 in a resetting circuit 9 is inputted to the terminal RES of a CPU2 and a signal having a level 1 generated on an address line A14 for runaway detection is applied to the terminal CLK of a latch 100, but a latch control signal having a level 0 is applied to the terminal CLK for a prescribed period, inhibiting a latching function. In case of a runaway, an address signal 1 is generated on the address line A14 and a signal having a level 1 is applied to the terminal CLK of the latch 100. Then, the latch 100 output a level 1 (Vcc) applied to the terminal D to drive a load 8' for emergency processing, thereby turning on, for example, a runaway indicating lamp which is not shown in the figure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55145784A JPS5769418A (en) | 1980-10-20 | 1980-10-20 | Runaway detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55145784A JPS5769418A (en) | 1980-10-20 | 1980-10-20 | Runaway detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5769418A true JPS5769418A (en) | 1982-04-28 |
Family
ID=15393076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55145784A Pending JPS5769418A (en) | 1980-10-20 | 1980-10-20 | Runaway detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5769418A (en) |
-
1980
- 1980-10-20 JP JP55145784A patent/JPS5769418A/en active Pending
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