JPS5748127A - Data processor - Google Patents

Data processor

Info

Publication number
JPS5748127A
JPS5748127A JP55122728A JP12272880A JPS5748127A JP S5748127 A JPS5748127 A JP S5748127A JP 55122728 A JP55122728 A JP 55122728A JP 12272880 A JP12272880 A JP 12272880A JP S5748127 A JPS5748127 A JP S5748127A
Authority
JP
Japan
Prior art keywords
memory part
controlling
magnetic disk
line
memory
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
JP55122728A
Other languages
Japanese (ja)
Inventor
Akihiko Yamanobe
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55122728A priority Critical patent/JPS5748127A/en
Publication of JPS5748127A publication Critical patent/JPS5748127A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To make it unnecessary to make up a control program in accordance with constitution of a connected input/output device, by providing a memory part for storing the control program for driving each input/output controlling part, on each input/output controlling part. CONSTITUTION:A magnetic disk device controlling 3 is drawn out from a mother board connecting part 30, contains an address bus line 31 connected to a memory part 40 or an address deciding circuit 44, and a memory part controlling line 33 to be led to the memory part 40, and also a magnetic disk controlling mechanism 42 is connected to the magnetic disk device through a magnetic disk connecting part 43. When the upper rank part of the address bus 31 has become a prescribed value, an address deciding circuit 44 makes the memory part 40 enable through a control line 35, so that the memory part 40 using the memory part controlling line 33 and a data bus 32 can be accessed. Also, when the upper rank part of the address bus 31 is other value, the memory part 40 is not accessed.
JP55122728A 1980-09-04 1980-09-04 Data processor Pending JPS5748127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55122728A JPS5748127A (en) 1980-09-04 1980-09-04 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122728A JPS5748127A (en) 1980-09-04 1980-09-04 Data processor

Publications (1)

Publication Number Publication Date
JPS5748127A true JPS5748127A (en) 1982-03-19

Family

ID=14843108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122728A Pending JPS5748127A (en) 1980-09-04 1980-09-04 Data processor

Country Status (1)

Country Link
JP (1) JPS5748127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945528A (en) * 1982-08-06 1984-03-14 モ−リス・オジ−ル Universal coupling unit
JPS62129889A (en) * 1985-12-02 1987-06-12 ヤマハ株式会社 Electronic musical apparatus network system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945528A (en) * 1982-08-06 1984-03-14 モ−リス・オジ−ル Universal coupling unit
JPS62129889A (en) * 1985-12-02 1987-06-12 ヤマハ株式会社 Electronic musical apparatus network system

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