JPS567155A - System support device - Google Patents
System support deviceInfo
- Publication number
- JPS567155A JPS567155A JP8213479A JP8213479A JPS567155A JP S567155 A JPS567155 A JP S567155A JP 8213479 A JP8213479 A JP 8213479A JP 8213479 A JP8213479 A JP 8213479A JP S567155 A JPS567155 A JP S567155A
- Authority
- JP
- Japan
- Prior art keywords
- fault
- support device
- memory
- stores
- select
- 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
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE: To secure the clear isolation between the fault of the system side and the fault of the support device side, by incorporating the processor PC, self-diagnosis firmware FW and the clock generating circuit each into the system support device.
CONSTITUTION: System support device 2 includes RAM12 which stores the program or the data, control memory 13 which stores the console function and the self- diagnosis FW, and local PC15 which carries out the control within device 2 or for the system 1 side based on the program stored in memory 13. Furthermore, the following parts are provided to device 2: various function control part 16 which includes the mode switch to select the working of the CPU at the system side or PC15, the memory switch to select the memory at the system side or the device side, and others; and clock generator 17 which is necessary for the single working of PC15. As a result, the clear isolation is possible between the fault of the system side and the fault of the support device side in case the system fault is detected, thus increasing the reliability.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8213479A JPS567155A (en) | 1979-06-29 | 1979-06-29 | System support device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8213479A JPS567155A (en) | 1979-06-29 | 1979-06-29 | System support device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS567155A true JPS567155A (en) | 1981-01-24 |
Family
ID=13765936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8213479A Pending JPS567155A (en) | 1979-06-29 | 1979-06-29 | System support device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567155A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0778122A (en) * | 1993-06-23 | 1995-03-20 | Koninkl Ptt Nederland Nv | Processor circuit composed of first processor, of memory and of peripheral circuit and system composed of said processor circuit and of second processor |
-
1979
- 1979-06-29 JP JP8213479A patent/JPS567155A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0778122A (en) * | 1993-06-23 | 1995-03-20 | Koninkl Ptt Nederland Nv | Processor circuit composed of first processor, of memory and of peripheral circuit and system composed of said processor circuit and of second processor |
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