JPS5582324A - Automatic power source breaking system dependent upon attachment - Google Patents
Automatic power source breaking system dependent upon attachmentInfo
- Publication number
- JPS5582324A JPS5582324A JP15617678A JP15617678A JPS5582324A JP S5582324 A JPS5582324 A JP S5582324A JP 15617678 A JP15617678 A JP 15617678A JP 15617678 A JP15617678 A JP 15617678A JP S5582324 A JPS5582324 A JP S5582324A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- power source
- attachment
- prescribed time
- interrupt request
- 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.)
- Granted
Links
Landscapes
- Power Sources (AREA)
Abstract
PURPOSE: To obtain an automatic power source breaking system which can be used special software, by providing a simple unit which generates an interrupt asynchronously to a CPU periodically by an attachment corresponding to an I/O device.
CONSTITUTION: Attachment ATC corresponding to an I/O is connected to arbitrary chennel unit CH. A CPU executes a processing program; and when timer TM1 reaches a prescribed time, an output signal is issued to issue an asynchronous interrupt request to the CPU through FF1 and interface control circuit ITF. Simultaneously, timer TM2 starts operations to set the waiting state for response from the CPU. When the CPU responds with a form of the instruction for the I/O within a prescribed time, TM2, is reset, and TM1 is operated again. When no response from the CPU is obtained after a prescribed time from interrupt request issuance, FF2 is set to decide that the CPU loses the processing capability for the interrupt request, and power source breaking command PFD or alarm LPA is issued.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15617678A JPS5582324A (en) | 1978-12-16 | 1978-12-16 | Automatic power source breaking system dependent upon attachment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15617678A JPS5582324A (en) | 1978-12-16 | 1978-12-16 | Automatic power source breaking system dependent upon attachment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5582324A true JPS5582324A (en) | 1980-06-21 |
JPS5715413B2 JPS5715413B2 (en) | 1982-03-30 |
Family
ID=15622009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15617678A Granted JPS5582324A (en) | 1978-12-16 | 1978-12-16 | Automatic power source breaking system dependent upon attachment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582324A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6176934U (en) * | 1984-10-26 | 1986-05-23 | ||
JPS6226804A (en) * | 1985-07-26 | 1987-02-04 | Canon Electronics Inc | Transformer installing method |
-
1978
- 1978-12-16 JP JP15617678A patent/JPS5582324A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5715413B2 (en) | 1982-03-30 |
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