JPS57136263A - Automatic resetting device of microcomputer - Google Patents
Automatic resetting device of microcomputerInfo
- Publication number
- JPS57136263A JPS57136263A JP56021861A JP2186181A JPS57136263A JP S57136263 A JPS57136263 A JP S57136263A JP 56021861 A JP56021861 A JP 56021861A JP 2186181 A JP2186181 A JP 2186181A JP S57136263 A JPS57136263 A JP S57136263A
- Authority
- JP
- Japan
- Prior art keywords
- cpu1
- memory
- address
- data
- cpu
- 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
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Retry When Errors Occur (AREA)
Abstract
PURPOSE:To realize the restart of a CPU, by executing a useless instruction when the CPU has a fault. CONSTITUTION:When a CPU1 runs away and tries to fetch a memory space which does not exist actually, a signal of H level is delivered from an OR gate 4. As a result, a memory 3 is chip-selected and the data is delivered to data buses D0-D7 to execute the 1-operation of an 1-byte instruction. The CPU1 reads this data, and the contents of a program counter to count the address of the memory 3 in the CPU1 is increased. The execution of the 1-operation is repeated to repeat the increment of the program counter. Meanwhile the youngest address of an existing memory is fetched. The area of this address is written in a prescribed restart routine, and as a result the execution is possible again to a normal program for the CPU1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56021861A JPS57136263A (en) | 1981-02-17 | 1981-02-17 | Automatic resetting device of microcomputer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56021861A JPS57136263A (en) | 1981-02-17 | 1981-02-17 | Automatic resetting device of microcomputer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57136263A true JPS57136263A (en) | 1982-08-23 |
Family
ID=12066893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56021861A Pending JPS57136263A (en) | 1981-02-17 | 1981-02-17 | Automatic resetting device of microcomputer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57136263A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0120186A2 (en) * | 1983-03-24 | 1984-10-03 | International Business Machines Corporation | Apparatus for automatic instruction parity error recovery |
US4924541A (en) * | 1987-03-10 | 1990-05-15 | Jitsuo Inagaki | Bed pad, an automobile seat pad, a pillow or a similar cushionlike item |
-
1981
- 1981-02-17 JP JP56021861A patent/JPS57136263A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0120186A2 (en) * | 1983-03-24 | 1984-10-03 | International Business Machines Corporation | Apparatus for automatic instruction parity error recovery |
US4924541A (en) * | 1987-03-10 | 1990-05-15 | Jitsuo Inagaki | Bed pad, an automobile seat pad, a pillow or a similar cushionlike item |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69728632D1 (en) | Single-step execution of processor and subsystem pipelines while troubleshooting a data processing system | |
RU95112473A (en) | MICROCOMPUTER | |
JPS5729153A (en) | Control system for instruction processing order | |
JPS57136263A (en) | Automatic resetting device of microcomputer | |
JPS5532118A (en) | Data processing system | |
JPS55123739A (en) | Memory content prefetch control system | |
JPS57105070A (en) | Control system of register interference | |
JPS57178553A (en) | Multiprocessor system | |
JPS57136262A (en) | Automatic resetting device of microcomputer | |
JPS57134754A (en) | Automatic restoring device for microcomputer | |
JPS56117259A (en) | Control method of copying machine | |
KR890015130A (en) | Microprocessor | |
JPS5794999A (en) | Protection system for microinstruction control memory | |
JPS57191758A (en) | System for storing test program in main storage | |
JPS57152048A (en) | Information processor | |
JPS5776640A (en) | Diagnostic system for additional processor | |
JPS5556253A (en) | Data processor | |
JPS57132255A (en) | Program tracing system | |
JPS55115146A (en) | Program trace unit | |
JPS55134423A (en) | Input/output control system | |
JPS5553747A (en) | Computer of order pre-fetch system | |
JPS5633746A (en) | Arithmetic processor having logging function | |
JPS5734263A (en) | Simple multiprocessor system | |
JPS6428730A (en) | Fault detection system | |
KR920022105A (en) | Microprocessor with Internal Cache Memory Unit |