JPS56500907A - - Google Patents

Info

Publication number
JPS56500907A
JPS56500907A JP50214880A JP50214880A JPS56500907A JP S56500907 A JPS56500907 A JP S56500907A JP 50214880 A JP50214880 A JP 50214880A JP 50214880 A JP50214880 A JP 50214880A JP S56500907 A JPS56500907 A JP S56500907A
Authority
JP
Japan
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
JP50214880A
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 filed Critical
Publication of JPS56500907A publication Critical patent/JPS56500907A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
JP50214880A 1979-08-31 1980-08-04 Pending JPS56500907A (ja)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS56500907A true JPS56500907A (ja) 1981-07-02

Family

ID=22103332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50214880A Pending JPS56500907A (ja) 1979-08-31 1980-08-04

Country Status (6)

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

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 Nec Corp 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
JPS621031A (ja) * 1985-03-25 1987-01-07 Hitachi Ltd デ−タ処理装置
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
US5175841A (en) * 1987-03-13 1992-12-29 Texas Instruments Incorporated Data processing device with multiple on-chip memory buses
US4912636A (en) * 1987-03-13 1990-03-27 Magar Surendar S Data processing device with multiple on chip memory buses
EP0318055B1 (en) * 1987-11-27 1995-02-01 Nec Corporation Data processor including a/d converter for converting a plurality of analog input channels into digital data
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 Koninkl Philips Electronics Nv 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
EP0034634B1 (en) 1986-02-19
US4348720A (en) 1982-09-07
WO1981000631A1 (en) 1981-03-05
EP0034634A1 (en) 1981-09-02
CA1148665A (en) 1983-06-21
EP0034634A4 (en) 1982-02-05
DE3071430D1 (en) 1986-03-27

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