JPS5674726A - Automatic return control system at the time of fault - Google Patents
Automatic return control system at the time of faultInfo
- Publication number
- JPS5674726A JPS5674726A JP15059179A JP15059179A JPS5674726A JP S5674726 A JPS5674726 A JP S5674726A JP 15059179 A JP15059179 A JP 15059179A JP 15059179 A JP15059179 A JP 15059179A JP S5674726 A JPS5674726 A JP S5674726A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- time
- hss
- signal line
- fault
- 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 make it possible to automatically return to the original state at the time of fault, by providing the superviosory means for deciding the time of falut on the electronic device which continuously executes the data transmission by repeating the hand shaking sequence HSS.
CONSTITUTION: For instance, it is assumed that as the first stage of HSS, the address information through the address and data bus 5 from the central operation processing unit 1, and the read or write instruction from the request signal line 7 have been sent out to the memory control device MCU3 at the same time. In response to said processing, MCU3 sends back an acknolwdge signal ACK to the unit 1, completes HSS, and after that, transfers a data by the bus 5. The ACk signal line 8 is also connected to the control circuit 9, the circuit 9 supervises an input signal, sends a reset signal to the unit 1 through the reset signal line 10 in case when the generation time intervals are longer than specified, and resets the unit 1 to its initial status. Accordingly, the data transmission device is never brought to a quiescent state from which it cannot get out.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15059179A JPS5674726A (en) | 1979-11-22 | 1979-11-22 | Automatic return control system at the time of fault |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15059179A JPS5674726A (en) | 1979-11-22 | 1979-11-22 | Automatic return control system at the time of fault |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674726A true JPS5674726A (en) | 1981-06-20 |
Family
ID=15500225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15059179A Pending JPS5674726A (en) | 1979-11-22 | 1979-11-22 | Automatic return control system at the time of fault |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674726A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080334A (en) * | 1983-10-07 | 1985-05-08 | Olympus Optical Co Ltd | Reset circuit of endoscope image pickup system |
-
1979
- 1979-11-22 JP JP15059179A patent/JPS5674726A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080334A (en) * | 1983-10-07 | 1985-05-08 | Olympus Optical Co Ltd | Reset circuit of endoscope image pickup system |
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