BR8903172A - Barramento de comunicacao de dados - Google Patents

Barramento de comunicacao de dados

Info

Publication number
BR8903172A
BR8903172A BR898903172A BR8903172A BR8903172A BR 8903172 A BR8903172 A BR 8903172A BR 898903172 A BR898903172 A BR 898903172A BR 8903172 A BR8903172 A BR 8903172A BR 8903172 A BR8903172 A BR 8903172A
Authority
BR
Brazil
Prior art keywords
data communication
communication bus
bus
data
communication
Prior art date
Application number
BR898903172A
Other languages
English (en)
Inventor
Gerald George Pechanek
David James Shippy
Mark Carl Snedaker
Sandra Sue Woodward
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BR8903172A publication Critical patent/BR8903172A/pt

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
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
BR898903172A 1988-06-29 1989-06-28 Barramento de comunicacao de dados BR8903172A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/212,784 US4961140A (en) 1988-06-29 1988-06-29 Apparatus and method for extending a parallel synchronous data and message bus

Publications (1)

Publication Number Publication Date
BR8903172A true BR8903172A (pt) 1990-02-13

Family

ID=22792413

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898903172A BR8903172A (pt) 1988-06-29 1989-06-28 Barramento de comunicacao de dados

Country Status (5)

Country Link
US (1) US4961140A (pt)
EP (1) EP0348672A3 (pt)
JP (1) JPH0775016B2 (pt)
BR (1) BR8903172A (pt)
CA (1) CA1318037C (pt)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034883A (en) * 1987-05-01 1991-07-23 Digital Equipment Corporation Lockhead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers
US5111424A (en) * 1987-05-01 1992-05-05 Digital Equipment Corporation Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfer
GB8808353D0 (en) * 1988-04-09 1988-05-11 Int Computers Ltd Data processing system
US5237696A (en) * 1988-04-13 1993-08-17 Rockwell International Corporation Method and apparatus for self-timed digital data transfer and bus arbitration
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
US5280621A (en) * 1989-12-29 1994-01-18 Zenith Data Systems Corporation Personal computer having dedicated processors for peripheral devices interconnected to the CPU by way of a system control processor
JPH03231320A (ja) * 1990-02-06 1991-10-15 Mitsubishi Electric Corp マイクロコンピュータシステム
US5555425A (en) * 1990-03-07 1996-09-10 Dell Usa, L.P. Multi-master bus arbitration system in which the address and data lines of the bus may be separately granted to individual masters
JP2986176B2 (ja) * 1990-05-11 1999-12-06 株式会社日立製作所 バス権制御方式およびバスシステム
DE4035459C1 (pt) * 1990-11-08 1992-05-14 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
CA2051029C (en) * 1990-11-30 1996-11-05 Pradeep S. Sindhu Arbitration of packet switched busses, including busses for shared memory multiprocessors
US5251305A (en) * 1991-04-04 1993-10-05 Unisys Corporation Apparatus and method for preventing bus contention among a plurality of data sources
CA2068010C (en) * 1991-08-30 1996-10-22 Robert Chih-Tsin Eng Alternate master bursting data rate management techniques for use in computer systems having dual bus architecture
US5269005A (en) * 1991-09-17 1993-12-07 Ncr Corporation Method and apparatus for transferring data within a computer system
US5359715A (en) * 1991-09-16 1994-10-25 Ncr Corporation Architectures for computer systems having multiple processors, multiple system buses and multiple I/O buses interfaced via multiple ported interfaces
US5301282A (en) * 1991-10-15 1994-04-05 International Business Machines Corp. Controlling bus allocation using arbitration hold
JP2571655B2 (ja) * 1991-11-27 1997-01-16 インターナショナル・ビジネス・マシーンズ・コーポレイション プロトコル変換機構、交換ネットワーク及びコンピュータ・システム
US5475818A (en) * 1992-03-18 1995-12-12 Aeg Transportation Systems, Inc. Communications controller central processing unit board
US5263139A (en) * 1992-05-19 1993-11-16 Sun Microsystems, Inc. Multiple bus architecture for flexible communication among processor modules and memory subsystems and specialized subsystems
CA2107047C (en) * 1992-12-29 1998-04-28 Alan M. Bentley Switched circuit connection management over public data networks for wide area networks
US5528765A (en) * 1993-03-15 1996-06-18 R. C. Baker & Associates Ltd. SCSI bus extension system for controlling individual arbitration on interlinked SCSI bus segments
EP0706138A1 (en) * 1994-10-03 1996-04-10 International Business Machines Corporation Alternating data valid control signals for high performance data transfer
US6434638B1 (en) 1994-12-09 2002-08-13 International Business Machines Corporation Arbitration protocol for peer-to-peer communication in synchronous systems
US5781747A (en) * 1995-11-14 1998-07-14 Mesa Ridge Technologies, Inc. Method and apparatus for extending the signal path of a peripheral component interconnect bus to a remote location
US5842025A (en) * 1996-08-27 1998-11-24 Mmc Networks, Inc. Arbitration methods and apparatus
US5926628A (en) * 1997-07-15 1999-07-20 International Business Machines Corporation Selectable priority bus arbitration scheme
FR2766937B1 (fr) * 1997-07-31 2001-04-27 Sqware T Protocole et systeme de liaison par bus entre elements d'un microcontroleur
US6088752A (en) * 1998-08-06 2000-07-11 Mobility Electronics, Inc. Method and apparatus for exchanging information between buses in a portable computer and docking station through a bridge employing a serial link
US6070214A (en) * 1998-08-06 2000-05-30 Mobility Electronics, Inc. Serially linked bus bridge for expanding access over a first bus to a second bus
US7734852B1 (en) 1998-08-06 2010-06-08 Ahern Frank W Modular computer system
US7269680B1 (en) * 1998-08-06 2007-09-11 Tao Logic Systems Llc System enabling device communication in an expanded computing device
EP1653373B1 (en) 2000-02-14 2013-11-13 Tao Logic Systems LLC Bus bridge
AU751695B2 (en) 2000-02-14 2002-08-22 Mobility Electronics, Inc. Docking system and method
US6594719B1 (en) 2000-04-19 2003-07-15 Mobility Electronics Inc. Extended cardbus/pc card controller with split-bridge ™technology
US7237166B2 (en) * 2002-10-23 2007-06-26 Hewlett-Packard Development Company, L.P. System and method for evaluating a multiprocessor system using a random bus traffic generation technique

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589568B2 (ja) * 1974-10-21 1983-02-22 日本電気株式会社 カヘンテイコウケンサソウチ
CA1120123A (en) * 1976-11-11 1982-03-16 Richard P. Kelly Automatic data steering and data formatting mechanism
JPS5427748A (en) * 1977-08-03 1979-03-02 Toshiba Corp Bus control system of composite computer system
JPS5913762B2 (ja) * 1979-01-10 1984-03-31 株式会社日立製作所 情報バス制御装置
US4449183A (en) * 1979-07-09 1984-05-15 Digital Equipment Corporation Arbitration scheme for a multiported shared functional device for use in multiprocessing systems
US4320467A (en) * 1980-02-25 1982-03-16 Raytheon Company Method and apparatus of bus arbitration using comparison of composite signals with device signals to determine device priority
US4392207A (en) * 1980-09-09 1983-07-05 Burroughs Corporation Card reader-data link processor
US4402040A (en) * 1980-09-24 1983-08-30 Raytheon Company Distributed bus arbitration method and apparatus
US4375639A (en) * 1981-01-12 1983-03-01 Harris Corporation Synchronous bus arbiter
US4442504A (en) * 1981-03-09 1984-04-10 Allen-Bradley Company Modular programmable controller
US4463445A (en) * 1982-01-07 1984-07-31 Bell Telephone Laboratories, Incorporated Circuitry for allocating access to a demand-shared bus
US4514823A (en) * 1982-01-15 1985-04-30 International Business Machines Corporation Apparatus and method for extending a parallel channel to a serial I/O device
US4580213A (en) * 1982-07-07 1986-04-01 Motorola, Inc. Microprocessor capable of automatically performing multiple bus cycles
US4628446A (en) * 1982-12-06 1986-12-09 At&T Bell Laboratories Multichannel interface
US4602327A (en) * 1983-07-28 1986-07-22 Motorola, Inc. Bus master capable of relinquishing bus on request and retrying bus cycle
US4620278A (en) * 1983-08-29 1986-10-28 Sperry Corporation Distributed bus arbitration according each bus user the ability to inhibit all new requests to arbitrate the bus, or to cancel its own pending request, and according the highest priority user the ability to stop the bus
GB8329509D0 (en) * 1983-11-04 1983-12-07 Inmos Ltd Computer
US4649513A (en) * 1983-11-15 1987-03-10 International Business Machines Corporation Apparatus and method for processing system printing data records on a page printer
US4719569A (en) * 1985-10-11 1988-01-12 Sun Microsystems, Inc. Arbitrator for allocating access to data processing resources
JPS62168251A (ja) * 1986-01-21 1987-07-24 Nec Corp バス制御回路
JPS6368957A (ja) * 1986-09-10 1988-03-28 Fuji Electric Co Ltd 情報処理装置におけるデ−タ転送方式

Also Published As

Publication number Publication date
JPH0775016B2 (ja) 1995-08-09
EP0348672A3 (en) 1991-04-03
JPH0219954A (ja) 1990-01-23
CA1318037C (en) 1993-05-18
US4961140A (en) 1990-10-02
EP0348672A2 (en) 1990-01-03

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Legal Events

Date Code Title Description
KF Request for proof of payment of annual fee
FD5 Application fees: dismissal - article 86 of industrial property law