DE69125676D1 - Arbeitsplatzrechner mit Direktspeicherzugriffssteuerung - Google Patents

Arbeitsplatzrechner mit Direktspeicherzugriffssteuerung

Info

Publication number
DE69125676D1
DE69125676D1 DE69125676T DE69125676T DE69125676D1 DE 69125676 D1 DE69125676 D1 DE 69125676D1 DE 69125676 T DE69125676 T DE 69125676T DE 69125676 T DE69125676 T DE 69125676T DE 69125676 D1 DE69125676 D1 DE 69125676D1
Authority
DE
Germany
Prior art keywords
workstation
access control
memory access
direct memory
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 - Fee Related
Application number
DE69125676T
Other languages
English (en)
Other versions
DE69125676T2 (de
Inventor
Georg Dollinger
Edward C King
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.)
NCR Voyix Corp
Original Assignee
NCR Corp
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 NCR Corp filed Critical NCR Corp
Publication of DE69125676D1 publication Critical patent/DE69125676D1/de
Application granted granted Critical
Publication of DE69125676T2 publication Critical patent/DE69125676T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4027—Coupling between buses using bus bridges
    • G06F13/405—Coupling between buses using bus bridges where the bridge performs a synchronising function
DE69125676T 1990-08-31 1991-08-30 Arbeitsplatzrechner mit Direktspeicherzugriffssteuerung Expired - Fee Related DE69125676T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909019001A GB9019001D0 (en) 1990-08-31 1990-08-31 Work station including a direct memory access controller and interfacing means to microchannel means

Publications (2)

Publication Number Publication Date
DE69125676D1 true DE69125676D1 (de) 1997-05-22
DE69125676T2 DE69125676T2 (de) 1997-11-27

Family

ID=10681428

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125676T Expired - Fee Related DE69125676T2 (de) 1990-08-31 1991-08-30 Arbeitsplatzrechner mit Direktspeicherzugriffssteuerung

Country Status (5)

Country Link
US (1) US5428751A (de)
EP (1) EP0478148B1 (de)
JP (1) JP3698324B2 (de)
DE (1) DE69125676T2 (de)
GB (1) GB9019001D0 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2064162C (en) * 1991-05-28 2002-07-09 Daniel Paul Fuoco Personal computer with local bus arbitration
EP0600122A1 (de) * 1992-12-02 1994-06-08 Siemens Aktiengesellschaft Mikroprozessor mit einer integrierten Bussteuereinheit
CA2109682C (en) * 1993-11-22 1998-11-03 Lee F. Hartley Multiple bus interface
US5903261A (en) * 1996-06-20 1999-05-11 Data Translation, Inc. Computer based video system
US6504854B1 (en) 1998-04-10 2003-01-07 International Business Machines Corporation Multiple frequency communications
CN101498952B (zh) * 2009-03-02 2012-12-26 北京红旗胜利科技发展有限责任公司 一种同步时钟的装置和方法
US9489009B2 (en) * 2014-02-20 2016-11-08 Samsung Electronics Co., Ltd. System on chip, bus interface and method of operating the same

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344132A (en) * 1979-12-14 1982-08-10 International Business Machines Corporation Serial storage interface apparatus for coupling a serial storage mechanism to a data processor input/output bus
US4777591A (en) * 1984-01-03 1988-10-11 Texas Instruments Incorporated Microprocessor with integrated CPU, RAM, timer, and bus arbiter for data communications systems
US4744078A (en) * 1985-05-13 1988-05-10 Gould Inc. Multiple path multiplexed host to network data communication system
US4882671A (en) * 1985-06-05 1989-11-21 Plus Development Corporation Microprocessor controlled rigid disk file subsystem
US4949301A (en) * 1986-03-06 1990-08-14 Advanced Micro Devices, Inc. Improved pointer FIFO controller for converting a standard RAM into a simulated dual FIFO by controlling the RAM's address inputs
US4782439A (en) * 1987-02-17 1988-11-01 Intel Corporation Direct memory access system for microcontroller
US4891752A (en) * 1987-03-03 1990-01-02 Tandon Corporation Multimode expanded memory space addressing system using independently generated DMA channel selection and DMA page address signals
US4989113A (en) * 1987-03-13 1991-01-29 Texas Instruments Incorporated Data processing device having direct memory access with improved transfer control
US5099417A (en) * 1987-03-13 1992-03-24 Texas Instruments Incorporated Data processing device with improved direct memory access
US5151986A (en) * 1987-08-27 1992-09-29 Motorola, Inc. Microcomputer with on-board chip selects and programmable bus stretching
US4930069A (en) * 1987-11-18 1990-05-29 International Business Machines Corporation Mechanism and method for transferring data between bus units having varying master and slave DMA capabilities
US4878166A (en) * 1987-12-15 1989-10-31 Advanced Micro Devices, Inc. Direct memory access apparatus and methods for transferring data between buses having different performance characteristics
US5089953A (en) * 1987-12-28 1992-02-18 Sundstrand Corporation Control and arbitration unit
US5077664A (en) * 1988-03-08 1991-12-31 Fujitsu Limited Direct memory access controller
US5129090A (en) * 1988-05-26 1992-07-07 Ibm Corporation System bus preempt for 80386 when running in an 80386/82385 microcomputer system with arbitration
US5003463A (en) * 1988-06-30 1991-03-26 Wang Laboratories, Inc. Interface controller with first and second buffer storage area for receiving and transmitting data between I/O bus and high speed system bus
US4987529A (en) * 1988-08-11 1991-01-22 Ast Research, Inc. Shared memory bus system for arbitrating access control among contending memory refresh circuits, peripheral controllers, and bus masters
JP2712131B2 (ja) * 1989-01-23 1998-02-10 株式会社日立製作所 通信制御装置
US5131083A (en) * 1989-04-05 1992-07-14 Intel Corporation Method of transferring burst data in a microprocessor
US5165022A (en) * 1989-10-23 1992-11-17 International Business Machines Corporation Channel and control unit having a first I/O program protocol for communication with a main processor and a second universal I/O program protocol for communication with a plurality of I/O adapters
US5265228A (en) * 1989-12-05 1993-11-23 Texas Instruments Incorporated Apparatus for transfer of data units between buses
US5072365A (en) * 1989-12-27 1991-12-10 Motorola, Inc. Direct memory access controller using prioritized interrupts for varying bus mastership
US5023465A (en) * 1990-03-26 1991-06-11 Micron Technology, Inc. High efficiency charge pump circuit
US5218681A (en) * 1990-08-31 1993-06-08 Advanced Micro Devices, Inc. Apparatus for controlling access to a data bus
US5301282A (en) * 1991-10-15 1994-04-05 International Business Machines Corp. Controlling bus allocation using arbitration hold

Also Published As

Publication number Publication date
EP0478148A1 (de) 1992-04-01
JP3698324B2 (ja) 2005-09-21
EP0478148B1 (de) 1997-04-16
GB9019001D0 (en) 1990-10-17
DE69125676T2 (de) 1997-11-27
US5428751A (en) 1995-06-27
JPH04350753A (ja) 1992-12-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: FIENER, J., PAT.-ANW., 87719 MINDELHEIM

8339 Ceased/non-payment of the annual fee