DE69422221D1 - Genaue und komplette Übertragung zwischen verschiedenen Busarchitekturen - Google Patents

Genaue und komplette Übertragung zwischen verschiedenen Busarchitekturen

Info

Publication number
DE69422221D1
DE69422221D1 DE69422221T DE69422221T DE69422221D1 DE 69422221 D1 DE69422221 D1 DE 69422221D1 DE 69422221 T DE69422221 T DE 69422221T DE 69422221 T DE69422221 T DE 69422221T DE 69422221 D1 DE69422221 D1 DE 69422221D1
Authority
DE
Germany
Prior art keywords
data
bus
cpu local
local bus
image
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
DE69422221T
Other languages
English (en)
Other versions
DE69422221T2 (de
Inventor
Gregory Norman Santos
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE69422221D1 publication Critical patent/DE69422221D1/de
Application granted granted Critical
Publication of DE69422221T2 publication Critical patent/DE69422221T2/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
    • G06F13/4009—Coupling between buses with data restructuring
    • G06F13/4018—Coupling between buses with data restructuring with data-width conversion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Bus Control (AREA)
  • Small-Scale Networks (AREA)
  • Image Processing (AREA)
  • Information Transfer Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69422221T 1993-05-28 1994-05-25 Genaue und komplette Übertragung zwischen verschiedenen Busarchitekturen Expired - Fee Related DE69422221T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/069,234 US5550989A (en) 1993-05-28 1993-05-28 Bridge circuit that can eliminate invalid data during information transfer between buses of different bitwidths

Publications (2)

Publication Number Publication Date
DE69422221D1 true DE69422221D1 (de) 2000-01-27
DE69422221T2 DE69422221T2 (de) 2000-06-08

Family

ID=22087606

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69422221T Expired - Fee Related DE69422221T2 (de) 1993-05-28 1994-05-25 Genaue und komplette Übertragung zwischen verschiedenen Busarchitekturen

Country Status (10)

Country Link
US (1) US5550989A (de)
EP (1) EP0627688B1 (de)
JP (1) JP2565659B2 (de)
KR (1) KR970008191B1 (de)
CN (1) CN1064463C (de)
AT (1) ATE188049T1 (de)
BR (1) BR9402108A (de)
CA (1) CA2124029A1 (de)
DE (1) DE69422221T2 (de)
TW (1) TW321743B (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5897667A (en) * 1993-11-16 1999-04-27 Intel Corporation Method and apparatus for transferring data received from a first bus in a non-burst manner to a second bus in a burst manner
SG47015A1 (en) * 1994-02-24 1998-03-20 Intel Corp Apparatus and method for prefetching data to load buffers in a bridge between two buses in a computer
JP3529429B2 (ja) * 1994-06-10 2004-05-24 富士通株式会社 データ送信装置、データ受信装置、データ伝送装置及びデータ伝送方法
US5794062A (en) * 1995-04-17 1998-08-11 Ricoh Company Ltd. System and method for dynamically reconfigurable computing using a processing unit having changeable internal hardware organization
US5692219A (en) * 1995-06-07 1997-11-25 Dell Usa, Lp System and method for disabling or re-enabling PCI-compliant devices in a computer system by masking the idsel signal with a disable or re-enable signal
US5978860A (en) * 1995-06-07 1999-11-02 Dell Usa, L.P. System and method for disabling and re-enabling at least one peripheral device in a computer system by masking a device-configuration-space-access-signal with a disable or re-enable signal
US5802560A (en) * 1995-08-30 1998-09-01 Ramton International Corporation Multibus cached memory system
US5689659A (en) * 1995-10-30 1997-11-18 Motorola, Inc. Method and apparatus for bursting operand transfers during dynamic bus sizing
US5850530A (en) * 1995-12-18 1998-12-15 International Business Machines Corporation Method and apparatus for improving bus efficiency by enabling arbitration based upon availability of completion data
US5712986A (en) * 1995-12-19 1998-01-27 Ncr Corporation Asynchronous PCI-to-PCI Bridge
US5793997A (en) * 1996-01-11 1998-08-11 Hewlett-Packard Company Interface architecture for connection to a peripheral component interconnect bus
US5898888A (en) * 1996-12-13 1999-04-27 International Business Machines Corporation Method and system for translating peripheral component interconnect (PCI) peer-to-peer access across multiple PCI host bridges within a computer system
US6230219B1 (en) * 1997-11-10 2001-05-08 International Business Machines Corporation High performance multichannel DMA controller for a PCI host bridge with a built-in cache
US6178462B1 (en) 1997-11-24 2001-01-23 International Business Machines Corporation Protocol for using a PCI interface for connecting networks
US6170034B1 (en) 1998-03-31 2001-01-02 Lsi Logic Corporation Hardware assisted mask read/write
US6314497B1 (en) * 1998-12-03 2001-11-06 Intel Corporation Apparatus and method for maintaining cache coherency in a memory system
US6233632B1 (en) * 1999-01-07 2001-05-15 Vlsi Technology, Inc. Optimizing peripheral component interconnect transactions in a mixed 32/64-bit environment by eliminating unnecessary data transfers
US6284422B1 (en) 1999-05-14 2001-09-04 Sharp Kabushiki Kaisha Toner for developing electrostatic latent images and image-forming apparatus
US6557087B1 (en) 2000-02-22 2003-04-29 International Business Machines Corporation Management of PCI read access to a central resource
US6993619B2 (en) 2003-03-28 2006-01-31 International Business Machines Corporation Single request data transfer regardless of size and alignment
US7757017B2 (en) * 2007-05-15 2010-07-13 International Business Machines Corporation Adjusting direction of data flow between I/O bridges and I/O hubs based on real time traffic levels
US8260980B2 (en) * 2009-06-10 2012-09-04 Lsi Corporation Simultaneous intermediate proxy direct memory access
CN108229196B (zh) * 2016-12-09 2021-09-07 上海新微技术研发中心有限公司 一种具有存储单元物理保护机制的soc芯片及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547849A (en) * 1981-12-09 1985-10-15 Glenn Louie Interface between a microprocessor and a coprocessor
US5101478A (en) * 1985-06-28 1992-03-31 Wang Laboratories, Inc. I/O structure for information processing system
EP0303752B1 (de) * 1987-08-20 1993-06-02 International Business Machines Corporation Speicherzugriffssteuerungsvorrichtung in einem Gemischtdatenformatsystem
JPS6491263A (en) * 1987-10-01 1989-04-10 Nec Corp Data transfer device
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
US5142672A (en) * 1987-12-15 1992-08-25 Advanced Micro Devices, Inc. Data transfer controller incorporating direct memory access channels and address mapped input/output windows
US5317715A (en) * 1987-12-15 1994-05-31 Advanced Micro Devices, Inc. Reduced instruction set computer system including apparatus and method for coupling a high performance RISC interface to a peripheral bus having different performance characteristics
US5025412A (en) * 1988-02-17 1991-06-18 Zilog, Inc. Universal bus interface
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
US5140679A (en) * 1988-09-14 1992-08-18 National Semiconductor Corporation Universal asynchronous receiver/transmitter
US5255374A (en) * 1992-01-02 1993-10-19 International Business Machines Corporation Bus interface logic for computer system having dual bus architecture
JP3357920B2 (ja) * 1991-07-03 2002-12-16 株式会社日立製作所 バス制御方式及びそのシステム
ATE192590T1 (de) * 1991-09-09 2000-05-15 Siemens Nixdorf Inf Syst Steuereinrichtung zur steuerung der datenübertragung zwischen einem von mehreren ein- /ausgabemodulen und dem arbeitsspeicher einer datenverarbeitungsanlage
JPH05128051A (ja) * 1991-10-31 1993-05-25 Nec Ic Microcomput Syst Ltd バス制御装置

Also Published As

Publication number Publication date
JP2565659B2 (ja) 1996-12-18
ATE188049T1 (de) 2000-01-15
EP0627688B1 (de) 1999-12-22
JPH06348646A (ja) 1994-12-22
CN1064463C (zh) 2001-04-11
US5550989A (en) 1996-08-27
CN1118478A (zh) 1996-03-13
BR9402108A (pt) 1994-12-13
DE69422221T2 (de) 2000-06-08
KR970008191B1 (en) 1997-05-21
TW321743B (de) 1997-12-01
CA2124029A1 (en) 1994-11-29
EP0627688A1 (de) 1994-12-07

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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