DE3071430D1 - Microcomputer arranged for direct memory access - Google Patents

Microcomputer arranged for direct memory access

Info

Publication number
DE3071430D1
DE3071430D1 DE8080901822T DE3071430T DE3071430D1 DE 3071430 D1 DE3071430 D1 DE 3071430D1 DE 8080901822 T DE8080901822 T DE 8080901822T DE 3071430 T DE3071430 T DE 3071430T DE 3071430 D1 DE3071430 D1 DE 3071430D1
Authority
DE
Germany
Prior art keywords
memory access
direct memory
microcomputer arranged
microcomputer
direct
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.)
Expired
Application number
DE8080901822T
Other languages
German (de)
English (en)
Inventor
Donald Edgar Blahut
Victor Kuo-Liang Huang
Richard Lee Towsend
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.)
AT&T Inc
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of DE3071430D1 publication Critical patent/DE3071430D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
    • G06F13/285—Halt processor DMA

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)
DE8080901822T 1979-08-31 1980-08-04 Microcomputer arranged for direct memory access Expired DE3071430D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/071,750 US4348720A (en) 1979-08-31 1979-08-31 Microcomputer arranged for direct memory access
PCT/US1980/000983 WO1981000631A1 (en) 1979-08-31 1980-08-04 Microcomputer arranged for direct memory access

Publications (1)

Publication Number Publication Date
DE3071430D1 true DE3071430D1 (en) 1986-03-27

Family

ID=22103332

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080901822T Expired DE3071430D1 (en) 1979-08-31 1980-08-04 Microcomputer arranged for direct memory access

Country Status (6)

Country Link
US (1) US4348720A (OSRAM)
EP (1) EP0034634B1 (OSRAM)
JP (1) JPS56500907A (OSRAM)
CA (1) CA1148665A (OSRAM)
DE (1) DE3071430D1 (OSRAM)
WO (1) WO1981000631A1 (OSRAM)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3273507D1 (en) * 1981-03-20 1986-11-06 Fujitsu Ltd A one chip microcomputer
US4495563A (en) * 1981-07-02 1985-01-22 Texas Instruments Incorporated Microcomputer having separate access to complete microcode words and partial microcode words
DE3587643T2 (de) * 1984-03-02 1994-03-24 Nippon Electric Co Informationsverarbeitungseinheit mit Unterbrechungsfunktion.
US4787025A (en) * 1984-03-06 1988-11-22 International Business Machines Corporation Remote fan out facility for data terminals
JP2618223B2 (ja) * 1984-07-27 1997-06-11 株式会社日立製作所 シングルチツプマイクロコンピユータ
KR860007588A (ko) * 1985-03-25 1986-10-15 미쓰다 가쓰시게 데이터 처리장치
GB2188175B (en) * 1986-03-18 1990-02-07 Stc Plc Data processing arrangement
US5099417A (en) * 1987-03-13 1992-03-24 Texas Instruments Incorporated Data processing device with improved direct memory access
US4912636A (en) * 1987-03-13 1990-03-27 Magar Surendar S Data processing device with multiple on chip memory buses
US5175841A (en) * 1987-03-13 1992-12-29 Texas Instruments Incorporated Data processing device with multiple on-chip memory buses
DE3852928T2 (de) * 1987-11-27 1995-10-05 Nippon Electric Co Datenprozessor mit A/D-Umsetzer, um mehrere analoge Eingabekanäle in Digitaldaten umzusetzen.
DE68927015D1 (de) * 1988-02-08 1996-10-02 Fujitsu Ltd Direktspeicherzugriffssteuerung
US5890220A (en) * 1991-02-05 1999-03-30 Hitachi, Ltd. Address conversion apparatus accessible to both I/O devices and processor and having a reduced number of index buffers
US5659797A (en) * 1991-06-24 1997-08-19 U.S. Philips Corporation Sparc RISC based computer system including a single chip processor with memory management and DMA units coupled to a DRAM interface
DE69327504T2 (de) * 1992-10-19 2000-08-10 Koninklijke Philips Electronics N.V., Eindhoven Datenprozessor mit Operationseinheiten, die gemeinsam Gruppen von Registerspeichern benutzen
DE69628326D1 (de) * 1995-10-06 2003-06-26 Patriot Scient Corp Architektur für einen risc-mikroprozessor
US6560652B1 (en) 1998-11-20 2003-05-06 Legerity, Inc. Method and apparatus for accessing variable sized blocks of data
US8738159B2 (en) * 2004-03-15 2014-05-27 Siemens Industry, Inc. System and method for accessing PLC data on demand

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673576A (en) * 1970-07-13 1972-06-27 Eg & G Inc Programmable computer-peripheral interface
US4181938A (en) * 1975-10-15 1980-01-01 Tokyo Shibaura Electric Co., Ltd. Processor device
US4075691A (en) * 1975-11-06 1978-02-21 Bunker Ramo Corporation Communication control unit
US4137565A (en) * 1977-01-10 1979-01-30 Xerox Corporation Direct memory access module for a controller
US4121283A (en) * 1977-01-17 1978-10-17 Cromemco Inc. Interface device for encoding a digital image for a CRT display
US4122520A (en) * 1977-05-23 1978-10-24 General Electric Company Microcomputer controller and direct memory access apparatus therefor
US4145739A (en) * 1977-06-20 1979-03-20 Wang Laboratories, Inc. Distributed data processing system
US4180855A (en) * 1978-04-07 1979-12-25 Gte Automatic Electric Laboratories Incorporated Direct memory access expander unit for use with a microprocessor

Also Published As

Publication number Publication date
EP0034634A1 (en) 1981-09-02
JPS56500907A (OSRAM) 1981-07-02
CA1148665A (en) 1983-06-21
WO1981000631A1 (en) 1981-03-05
EP0034634B1 (en) 1986-02-19
EP0034634A4 (en) 1982-02-05
US4348720A (en) 1982-09-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee