WO2001022233A3 - Management of access rights to buses with dynamic priority regulation - Google Patents

Management of access rights to buses with dynamic priority regulation Download PDF

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Publication number
WO2001022233A3
WO2001022233A3 PCT/DE2000/003114 DE0003114W WO0122233A3 WO 2001022233 A3 WO2001022233 A3 WO 2001022233A3 DE 0003114 W DE0003114 W DE 0003114W WO 0122233 A3 WO0122233 A3 WO 0122233A3
Authority
WO
WIPO (PCT)
Prior art keywords
access rights
buses
management
arbiter
dynamic priority
Prior art date
Application number
PCT/DE2000/003114
Other languages
German (de)
French (fr)
Other versions
WO2001022233A2 (en
Inventor
Andreas Staudigl
Gerhard Otte
Original Assignee
Siemens Ag
Andreas Staudigl
Gerhard Otte
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 Siemens Ag, Andreas Staudigl, Gerhard Otte filed Critical Siemens Ag
Publication of WO2001022233A2 publication Critical patent/WO2001022233A2/en
Publication of WO2001022233A3 publication Critical patent/WO2001022233A3/en

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
    • G06F13/362—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control
    • G06F13/364—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using independent requests or grants, e.g. using separated request and grant lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)

Abstract

The aim of the invention is to more flexibly use bus resources. The possibility to dynamically design the priority allocation by a arbiter (1) is provided. The arbiter allocates access rights to bus resources to several users (1, 2, X). The waiting cycles (W1, W2, W3) of the individual users (1, 2, X) are evaluated (3). Priority is newly allocated (4) according to the evaluation. The priority allocation is brought back to the arbiter (1) by means of a feedback loop (5).
PCT/DE2000/003114 1999-09-17 2000-09-07 Management of access rights to buses with dynamic priority regulation WO2001022233A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944732 1999-09-17
DE19944732.2 1999-09-17

Publications (2)

Publication Number Publication Date
WO2001022233A2 WO2001022233A2 (en) 2001-03-29
WO2001022233A3 true WO2001022233A3 (en) 2001-10-11

Family

ID=7922449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003114 WO2001022233A2 (en) 1999-09-17 2000-09-07 Management of access rights to buses with dynamic priority regulation

Country Status (1)

Country Link
WO (1) WO2001022233A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8032678B2 (en) * 2008-11-05 2011-10-04 Mediatek Inc. Shared resource arbitration
US9747231B2 (en) * 2012-03-30 2017-08-29 Nec Corporation Bus access arbiter and method of bus arbitration

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227461A (en) * 1988-07-15 1990-01-30 Nec Corp Data transfer controller
US5274774A (en) * 1989-01-31 1993-12-28 Wisconsin Alumni Research Foundation First-come first-serve arbitration protocol
JPH07160627A (en) * 1993-12-02 1995-06-23 Mitsubishi Electric Corp Bus controller
US5898694A (en) * 1996-12-30 1999-04-27 Cabletron Systems, Inc. Method of round robin bus arbitration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227461A (en) * 1988-07-15 1990-01-30 Nec Corp Data transfer controller
US5274774A (en) * 1989-01-31 1993-12-28 Wisconsin Alumni Research Foundation First-come first-serve arbitration protocol
JPH07160627A (en) * 1993-12-02 1995-06-23 Mitsubishi Electric Corp Bus controller
US5898694A (en) * 1996-12-30 1999-04-27 Cabletron Systems, Inc. Method of round robin bus arbitration

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 173 (P - 1033) 5 April 1990 (1990-04-05) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *

Also Published As

Publication number Publication date
WO2001022233A2 (en) 2001-03-29

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