JPS5556202A - Controller with incorporated microcomputer - Google Patents

Controller with incorporated microcomputer

Info

Publication number
JPS5556202A
JPS5556202A JP12844878A JP12844878A JPS5556202A JP S5556202 A JPS5556202 A JP S5556202A JP 12844878 A JP12844878 A JP 12844878A JP 12844878 A JP12844878 A JP 12844878A JP S5556202 A JPS5556202 A JP S5556202A
Authority
JP
Japan
Prior art keywords
terminal
controller
mpu3
constitution
check
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
Application number
JP12844878A
Other languages
Japanese (ja)
Inventor
Masami Shida
Hiroatsu Tokuda
Seiji Suda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12844878A priority Critical patent/JPS5556202A/en
Publication of JPS5556202A publication Critical patent/JPS5556202A/en
Pending legal-status Critical Current

Links

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  • Control By Computers (AREA)

Abstract

PURPOSE: To make a controller check itself by allowing the controller in process of a control program to proceed to a check program on receiving an external interruption.
CONSTITUTION: Microprocessing unit MPU3 processes a detection signal from sensor 6 by using a control program in ROM1 and data in RAM2. Its result controls actuator 7 through interface circuit 4 and peripheral circuit 5. To MPU3, interruption signal terminal 10 is provided which is not used in normal control operation, and this terminal 10 is being applied with positive voltage Vcc by way of resistance 9. In this constitution, terminal 10 is further applied with the earth potential through contact 11. When the earth potential is applied to terminal 10 by closinng switch 11, MPU3 reads a check program in ROM and makes fixed checks.
COPYRIGHT: (C)1980,JPO&Japio
JP12844878A 1978-10-20 1978-10-20 Controller with incorporated microcomputer Pending JPS5556202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12844878A JPS5556202A (en) 1978-10-20 1978-10-20 Controller with incorporated microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12844878A JPS5556202A (en) 1978-10-20 1978-10-20 Controller with incorporated microcomputer

Publications (1)

Publication Number Publication Date
JPS5556202A true JPS5556202A (en) 1980-04-24

Family

ID=14984960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12844878A Pending JPS5556202A (en) 1978-10-20 1978-10-20 Controller with incorporated microcomputer

Country Status (1)

Country Link
JP (1) JPS5556202A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108483A (en) * 1974-02-05 1975-08-26
JPS5287943A (en) * 1976-01-19 1977-07-22 Mitsubishi Electric Corp Operation monitor system for micor processor
JPS5318358A (en) * 1976-08-04 1978-02-20 Casio Comput Co Ltd Auto check system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108483A (en) * 1974-02-05 1975-08-26
JPS5287943A (en) * 1976-01-19 1977-07-22 Mitsubishi Electric Corp Operation monitor system for micor processor
JPS5318358A (en) * 1976-08-04 1978-02-20 Casio Comput Co Ltd Auto check system

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