JPS57130143A - Digital computer - Google Patents

Digital computer

Info

Publication number
JPS57130143A
JPS57130143A JP56014061A JP1406181A JPS57130143A JP S57130143 A JPS57130143 A JP S57130143A JP 56014061 A JP56014061 A JP 56014061A JP 1406181 A JP1406181 A JP 1406181A JP S57130143 A JPS57130143 A JP S57130143A
Authority
JP
Japan
Prior art keywords
circuit
microcomputer
constitution
program
internal bus
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
JP56014061A
Other languages
Japanese (ja)
Inventor
Sunao Nagashima
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56014061A priority Critical patent/JPS57130143A/en
Publication of JPS57130143A publication Critical patent/JPS57130143A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/05—Digital input using the sampling of an analogue quantity at regular intervals of time, input from a/d converter or output to d/a converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microcomputers (AREA)

Abstract

PURPOSE:To make easily a digital computer into one chip, by making plural D/A converters and a microcomputer into one body to simplify the constitution and reduce the number of constituting elements. CONSTITUTION:Respective circuits are operated o a basis of the system clock generated from a clock generator 31. Respective circuits of a microcomputer and D/A conversion latch circuits 32 are connected by an internal bus 33. When the reset terminal of a control circuit 34 becomes active, an instruction register and decoder circuit 37 fetches the instruction in a specific address of a program ROM36 through a control branch logic circuit 35 to start the execution of a program. The internal bus 22 of the microcomputer is connected to an arithmetic operation unit ALU38, a digital I/O circuit 39, a latch circuit 32 for D/A conversion, a RAM40, etc.
JP56014061A 1981-02-02 1981-02-02 Digital computer Pending JPS57130143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56014061A JPS57130143A (en) 1981-02-02 1981-02-02 Digital computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56014061A JPS57130143A (en) 1981-02-02 1981-02-02 Digital computer

Publications (1)

Publication Number Publication Date
JPS57130143A true JPS57130143A (en) 1982-08-12

Family

ID=11850567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56014061A Pending JPS57130143A (en) 1981-02-02 1981-02-02 Digital computer

Country Status (1)

Country Link
JP (1) JPS57130143A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105165A (en) * 1982-12-08 1984-06-18 Mitsubishi Electric Corp Microcomputer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105165A (en) * 1982-12-08 1984-06-18 Mitsubishi Electric Corp Microcomputer

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