JPS55146553A - Controlling circuit of program of microcomputer - Google Patents
Controlling circuit of program of microcomputerInfo
- Publication number
- JPS55146553A JPS55146553A JP5349679A JP5349679A JPS55146553A JP S55146553 A JPS55146553 A JP S55146553A JP 5349679 A JP5349679 A JP 5349679A JP 5349679 A JP5349679 A JP 5349679A JP S55146553 A JPS55146553 A JP S55146553A
- Authority
- JP
- Japan
- Prior art keywords
- address
- interruption
- program
- signal
- microcomputer
- 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
Abstract
PURPOSE: To halt a malfunction of a computer, by providing a means for selecting an address except that of an external memory element selected by a microcomputer, and that of an input circuit, and connecting an output of the aforesaid means to an interruption terminal.
CONSTITUTION: When a program causes a malfunction due to an external noise, an address which cannot be generated in an address bus line 6 comes out, therefore an address decoder 10 seizes this address signal and inputs the signal to an interruption input terminal 12. A microprocessor halts a flow of program which has been operated until that time when the above signal is input to the interruption input terminal 12, and it jumps to a specific interruption processing address. As a result of the foregoing, an interruption processing routine is executed, runaway of the program is halted, and the processing based upon a normal instruction is carried out, therefore stability of the whole system can be maintained and a bad effect to the outside can be suppressed, as well.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5349679A JPS55146553A (en) | 1979-05-02 | 1979-05-02 | Controlling circuit of program of microcomputer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5349679A JPS55146553A (en) | 1979-05-02 | 1979-05-02 | Controlling circuit of program of microcomputer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55146553A true JPS55146553A (en) | 1980-11-14 |
Family
ID=12944433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5349679A Pending JPS55146553A (en) | 1979-05-02 | 1979-05-02 | Controlling circuit of program of microcomputer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55146553A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2595485A1 (en) * | 1986-03-05 | 1987-09-11 | Oki Electric Ind Co Ltd | COMPUTER, IN PARTICULAR MICROCOMPUTER WITH INTEGRATED CIRCUIT |
JPH0370652U (en) * | 1989-11-13 | 1991-07-16 |
-
1979
- 1979-05-02 JP JP5349679A patent/JPS55146553A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2595485A1 (en) * | 1986-03-05 | 1987-09-11 | Oki Electric Ind Co Ltd | COMPUTER, IN PARTICULAR MICROCOMPUTER WITH INTEGRATED CIRCUIT |
JPH0370652U (en) * | 1989-11-13 | 1991-07-16 |
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