JPH02226359A - Microprocessor control circuit - Google Patents

Microprocessor control circuit

Info

Publication number
JPH02226359A
JPH02226359A JP4523889A JP4523889A JPH02226359A JP H02226359 A JPH02226359 A JP H02226359A JP 4523889 A JP4523889 A JP 4523889A JP 4523889 A JP4523889 A JP 4523889A JP H02226359 A JPH02226359 A JP H02226359A
Authority
JP
Japan
Prior art keywords
microprocessor
circuit
control
alarm
state
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
JP4523889A
Other languages
Japanese (ja)
Inventor
Akiko Komatsuda
Shinichi Yoshioka
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP4523889A priority Critical patent/JPH02226359A/en
Publication of JPH02226359A publication Critical patent/JPH02226359A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To continue highly reliable control without returning a whole microprocessor circuit to an initial state by switching a microprocessor when an alarm is detected, and executing the control in the same state as a state before the alarming.
CONSTITUTION: In a normal connecting state that a first microprocessor 1 is connected to a control circuit 5, when the first microprocessor 1 goes to an alarm state, an alarm detection circuit 6 detects the alarm of the first processor 1 and outputs a detection signal 6a to a microprocessor select circuit 7. Based on the detection signal 6a from the alarm detection circuit 6, the microprocessor select circuit 7 switches the connection from the first microprocessor 1 to a second microprocessor 2. By this switching, the control circuit receives the control of the second microprocessor 2 and operates. Thus, the control of the high reliability can be continued from the state before the alarming without returning the whole microprocessor circuit to the initial state.
COPYRIGHT: (C)1990,JPO&Japio
JP4523889A 1989-02-28 1989-02-28 Microprocessor control circuit Pending JPH02226359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4523889A JPH02226359A (en) 1989-02-28 1989-02-28 Microprocessor control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4523889A JPH02226359A (en) 1989-02-28 1989-02-28 Microprocessor control circuit

Publications (1)

Publication Number Publication Date
JPH02226359A true JPH02226359A (en) 1990-09-07

Family

ID=12713677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4523889A Pending JPH02226359A (en) 1989-02-28 1989-02-28 Microprocessor control circuit

Country Status (1)

Country Link
JP (1) JPH02226359A (en)

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