BE1001290A4 - Dispositif d'arbitrage d'acces a memoire direct. - Google Patents

Dispositif d'arbitrage d'acces a memoire direct. Download PDF

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Publication number
BE1001290A4
BE1001290A4 BE8701396A BE8701396A BE1001290A4 BE 1001290 A4 BE1001290 A4 BE 1001290A4 BE 8701396 A BE8701396 A BE 8701396A BE 8701396 A BE8701396 A BE 8701396A BE 1001290 A4 BE1001290 A4 BE 1001290A4
Authority
BE
Belgium
Prior art keywords
arbitration
bus
dma
peripheral
unit
Prior art date
Application number
BE8701396A
Other languages
English (en)
French (fr)
Inventor
Ian A Concilio
Jeffrey A Hawthorne
Chester Asbury Heath
Jorge Eduardo Lenta
Long D Nguyen
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
Application granted granted Critical
Publication of BE1001290A4 publication Critical patent/BE1001290A4/fr

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
    • 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
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/362—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control
    • G06F13/3625—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using a time dependent access
    • 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
    • G06F13/30—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal with priority control
    • 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
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
    • G06F13/374—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a self-select method with individual priority code comparator

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
BE8701396A 1987-03-27 1987-12-04 Dispositif d'arbitrage d'acces a memoire direct. BE1001290A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3078887A 1987-03-27 1987-03-27

Publications (1)

Publication Number Publication Date
BE1001290A4 true BE1001290A4 (fr) 1989-09-19

Family

ID=21856040

Family Applications (1)

Application Number Title Priority Date Filing Date
BE8701396A BE1001290A4 (fr) 1987-03-27 1987-12-04 Dispositif d'arbitrage d'acces a memoire direct.

Country Status (19)

Country Link
EP (1) EP0283580B1 (h)
JP (1) JPH0724044B2 (h)
KR (1) KR950008228B1 (h)
CN (1) CN1012295B (h)
AR (1) AR244899A1 (h)
AT (1) ATE75865T1 (h)
BE (1) BE1001290A4 (h)
BR (1) BR8800739A (h)
CA (1) CA1299295C (h)
DE (1) DE3778877D1 (h)
ES (1) ES2032288T3 (h)
FR (1) FR2613096A1 (h)
GB (1) GB2202975B (h)
GR (1) GR3004930T3 (h)
HK (1) HK65392A (h)
IT (1) IT1217359B (h)
MY (1) MY103351A (h)
NL (1) NL185312C (h)
SG (1) SG67992G (h)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7089344B1 (en) * 2000-06-09 2006-08-08 Motorola, Inc. Integrated processor platform supporting wireless handheld multi-media devices
JP2010165175A (ja) 2009-01-15 2010-07-29 Internatl Business Mach Corp <Ibm> バスの使用権を制御する装置および方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603935A (en) * 1969-05-12 1971-09-07 Xerox Corp Memory port priority access system with inhibition of low priority lock-out
US3925766A (en) * 1972-11-29 1975-12-09 Honeywell Inf Systems Dynamically variable priority access system
WO1980002608A1 (en) * 1979-05-14 1980-11-27 Western Electric Co Distributed first-come first-served bus allocation apparatus
US4371932A (en) * 1979-07-30 1983-02-01 International Business Machines Corp. I/O Controller for transferring data between a host processor and multiple I/O units

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603935A (en) * 1969-05-12 1971-09-07 Xerox Corp Memory port priority access system with inhibition of low priority lock-out
US3925766A (en) * 1972-11-29 1975-12-09 Honeywell Inf Systems Dynamically variable priority access system
WO1980002608A1 (en) * 1979-05-14 1980-11-27 Western Electric Co Distributed first-come first-served bus allocation apparatus
US4371932A (en) * 1979-07-30 1983-02-01 International Business Machines Corp. I/O Controller for transferring data between a host processor and multiple I/O units

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 27, no. 5, octobre 1984, pages 3150-3152, New York, US; G.T. DAVIS: "Multiplexing of interrupt and DMA request lines" *
IEEE STANDARD 696 INTERFACE DEVICES, juin 1983, pages 1-40, IEEE, New York, US *

Also Published As

Publication number Publication date
CN1012295B (zh) 1991-04-03
GB8728921D0 (en) 1988-01-27
GR3004930T3 (h) 1993-04-28
CN88100963A (zh) 1988-12-28
KR950008228B1 (ko) 1995-07-26
ES2032288T3 (es) 1993-02-01
SG67992G (en) 1992-09-04
AR244899A1 (es) 1993-11-30
CA1299295C (en) 1992-04-21
NL8800737A (nl) 1988-10-17
GB2202975B (en) 1991-09-25
EP0283580B1 (en) 1992-05-06
ATE75865T1 (de) 1992-05-15
KR880011679A (ko) 1988-10-29
GB2202975A (en) 1988-10-05
IT1217359B (it) 1990-03-22
EP0283580A1 (en) 1988-09-28
MY103351A (en) 1993-06-30
BR8800739A (pt) 1988-10-04
FR2613096A1 (fr) 1988-09-30
JPH0724044B2 (ja) 1995-03-15
DE3778877D1 (de) 1992-06-11
NL185312B (nl) 1989-10-02
JPS63244161A (ja) 1988-10-11
NL185312C (nl) 1990-03-01
HK65392A (en) 1992-09-11
IT8819946A0 (it) 1988-03-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL BUSINESS MACHINES CORP.

Effective date: 19911231