JPS57137916A - Computer for car - Google Patents

Computer for car

Info

Publication number
JPS57137916A
JPS57137916A JP56023133A JP2313381A JPS57137916A JP S57137916 A JPS57137916 A JP S57137916A JP 56023133 A JP56023133 A JP 56023133A JP 2313381 A JP2313381 A JP 2313381A JP S57137916 A JPS57137916 A JP S57137916A
Authority
JP
Japan
Prior art keywords
cpu
reset
reset signal
signal
code discriminator
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
JP56023133A
Other languages
Japanese (ja)
Inventor
Akito Yamamoto
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56023133A priority Critical patent/JPS57137916A/en
Publication of JPS57137916A publication Critical patent/JPS57137916A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/10—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time using counting means or digital clocks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/24—Resetting means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To obtain a device which is capable of resetting not only a CPU but also an I/O element when runaway of the CPU, etc. has occurred, by providing a reset signal generator for executing an equal operation to power-on reset. CONSTITUTION:As for a reset signal generator provided on a CPU and an I/O element, for instance, if runaway occurs in the fetch cycle, an output showing the fetch cycle is generated by the first code discriminator 10, and an output showing the detection of a non-defined instruction is generated by the second code discriminator 12. Subsequently, an output signal A is outputted by the third code discriminator 14, this signal is triggered, a pulse B whose width is hundreds of 100mus-1ms is outputted as a reset signal by a delaying circuit 16, and it is sent out to the CPU and the I/O element through a signal line 6. Subsequently, the CPU and the I/O element which have inputted the reset signal are initialized respectively by means of an equal operation to power-on reset in case when an electric power supply is turned on, and are restarted automatically.
JP56023133A 1981-02-20 1981-02-20 Computer for car Pending JPS57137916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023133A JPS57137916A (en) 1981-02-20 1981-02-20 Computer for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023133A JPS57137916A (en) 1981-02-20 1981-02-20 Computer for car

Publications (1)

Publication Number Publication Date
JPS57137916A true JPS57137916A (en) 1982-08-25

Family

ID=12102027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023133A Pending JPS57137916A (en) 1981-02-20 1981-02-20 Computer for car

Country Status (1)

Country Link
JP (1) JPS57137916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603013A (en) * 1983-06-17 1985-01-09 Hitachi Denshi Ltd Restarting circuit
JPH01230136A (en) * 1988-03-10 1989-09-13 Nec Corp Run-away preventing circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103723A (en) * 1980-01-23 1981-08-19 Nippon Denso Co Ltd Automatic reset method for computer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103723A (en) * 1980-01-23 1981-08-19 Nippon Denso Co Ltd Automatic reset method for computer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603013A (en) * 1983-06-17 1985-01-09 Hitachi Denshi Ltd Restarting circuit
JPH01230136A (en) * 1988-03-10 1989-09-13 Nec Corp Run-away preventing circuit

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