CA1178378A - High-speed external memory system - Google Patents

High-speed external memory system

Info

Publication number
CA1178378A
CA1178378A CA000393310A CA393310A CA1178378A CA 1178378 A CA1178378 A CA 1178378A CA 000393310 A CA000393310 A CA 000393310A CA 393310 A CA393310 A CA 393310A CA 1178378 A CA1178378 A CA 1178378A
Authority
CA
Canada
Prior art keywords
external memory
memory
access
address
register
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
CA000393310A
Other languages
English (en)
French (fr)
Inventor
Hirohiko Kurosu
Satoshi Nagata
Yasuo Satake
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of CA1178378A publication Critical patent/CA1178378A/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
CA000393310A 1980-12-29 1981-12-29 High-speed external memory system Expired CA1178378A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP187901/1980 1980-12-29
JP55187901A JPS57113162A (en) 1980-12-29 1980-12-29 High-speed external storage device

Publications (1)

Publication Number Publication Date
CA1178378A true CA1178378A (en) 1984-11-20

Family

ID=16214174

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000393310A Expired CA1178378A (en) 1980-12-29 1981-12-29 High-speed external memory system

Country Status (5)

Country Link
US (1) US4467454A (OSRAM)
EP (1) EP0055623B1 (OSRAM)
JP (1) JPS57113162A (OSRAM)
CA (1) CA1178378A (OSRAM)
DE (1) DE3171859D1 (OSRAM)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558429A (en) * 1981-12-17 1985-12-10 Honeywell Information Systems Inc. Pause apparatus for a memory controller with interleaved queuing apparatus
DE3382684T2 (de) * 1982-11-16 1993-08-26 Unisys Corp Blockzaehlersystem zur ueberwachung des datentransfers.
US4542457A (en) * 1983-01-11 1985-09-17 Burroughs Corporation Burst mode data block transfer system
JPS6174051A (ja) * 1984-09-19 1986-04-16 Oki Electric Ind Co Ltd マイクロコンピユ−タ装置のｄｍａ制御方式
US4712176A (en) * 1985-02-11 1987-12-08 International Business Machines Corp. Serial channel interface with method and apparatus for handling data streaming and data interlocked modes of data transfer
CA1257400A (en) * 1985-05-21 1989-07-11 Akihiro Sera Input/output control system
US4703418A (en) * 1985-06-28 1987-10-27 Hewlett-Packard Company Method and apparatus for performing variable length data read transactions
JPS6364144A (ja) * 1986-09-04 1988-03-22 Hitachi Ltd 記憶装置間デ−タ転送方式
CA1311063C (en) * 1988-12-16 1992-12-01 Tokumichi Murakami Digital signal processor
US5249283A (en) * 1990-12-24 1993-09-28 Ncr Corporation Cache coherency method and apparatus for a multiple path interconnection network
JP3265582B2 (ja) * 1991-02-27 2002-03-11 日本電気株式会社 マイクロコンピュータ
JPH10124447A (ja) * 1996-10-18 1998-05-15 Fujitsu Ltd データ転送制御方法及び装置
GB0101399D0 (en) 2001-01-19 2001-03-07 Lsi Logic Corp Direct memory accessing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181938A (en) * 1975-10-15 1980-01-01 Tokyo Shibaura Electric Co., Ltd. Processor device
JPS544028A (en) * 1977-06-10 1979-01-12 Nec Corp Direct memory access unit
US4275440A (en) * 1978-10-02 1981-06-23 International Business Machines Corporation I/O Interrupt sequencing for real time and burst mode devices

Also Published As

Publication number Publication date
JPS6131485B2 (OSRAM) 1986-07-21
EP0055623A3 (en) 1982-08-25
EP0055623A2 (en) 1982-07-07
EP0055623B1 (en) 1985-08-14
US4467454A (en) 1984-08-21
JPS57113162A (en) 1982-07-14
DE3171859D1 (en) 1985-09-19

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry