DE69026336D1 - Bevorrechtigungsschaltung für ein Rechnersystem - Google Patents
Bevorrechtigungsschaltung für ein RechnersystemInfo
- Publication number
- DE69026336D1 DE69026336D1 DE69026336T DE69026336T DE69026336D1 DE 69026336 D1 DE69026336 D1 DE 69026336D1 DE 69026336 T DE69026336 T DE 69026336T DE 69026336 T DE69026336 T DE 69026336T DE 69026336 D1 DE69026336 D1 DE 69026336D1
- Authority
- DE
- Germany
- Prior art keywords
- computer system
- priority circuit
- priority
- circuit
- computer
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
-
- 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
- G06F13/366—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using a centralised polling arbiter
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/428,259 US5293493A (en) | 1989-10-27 | 1989-10-27 | Preemption control for central processor with cache |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69026336D1 true DE69026336D1 (de) | 1996-05-09 |
DE69026336T2 DE69026336T2 (de) | 1996-10-10 |
Family
ID=23698145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69026336T Expired - Fee Related DE69026336T2 (de) | 1989-10-27 | 1990-10-17 | Bevorrechtigungsschaltung für ein Rechnersystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US5293493A (de) |
EP (1) | EP0425181B1 (de) |
JP (1) | JPH0656602B2 (de) |
KR (1) | KR930005725B1 (de) |
CN (1) | CN1031085C (de) |
DE (1) | DE69026336T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5596749A (en) * | 1992-09-21 | 1997-01-21 | Texas Instruments Incorporated | Arbitration request sequencer |
WO1994019747A1 (en) * | 1993-02-17 | 1994-09-01 | 3Com Corporation | System for reading dynamically changing data |
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 |
US6374319B1 (en) | 1999-06-22 | 2002-04-16 | Philips Electronics North America Corporation | Flag-controlled arbitration of requesting agents |
US7406554B1 (en) | 2000-07-20 | 2008-07-29 | Silicon Graphics, Inc. | Queue circuit and method for memory arbitration employing same |
US6816947B1 (en) * | 2000-07-20 | 2004-11-09 | Silicon Graphics, Inc. | System and method for memory arbitration |
EP1811393B1 (de) * | 2004-08-30 | 2009-03-11 | Magima Digital Information Co., Ltd. | Verfahren und system zum datentransfer |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237534A (en) * | 1978-11-13 | 1980-12-02 | Motorola, Inc. | Bus arbiter |
FR2462745B1 (fr) * | 1979-07-30 | 1986-01-03 | Jeumont Schneider | Dispositif de partage temporel de l'acces a une memoire connectee a un bus unique entre un calculateur central et une pluralite de calculateurs peripheriques |
US4323965A (en) * | 1980-01-08 | 1982-04-06 | Honeywell Information Systems Inc. | Sequential chip select decode apparatus and method |
JPS57196335A (en) * | 1981-05-27 | 1982-12-02 | Mitsubishi Electric Corp | Shared storage device |
JPS58107934A (ja) * | 1981-12-21 | 1983-06-27 | Matsushita Electric Ind Co Ltd | バス制御方式 |
JPS6052468B2 (ja) * | 1982-03-04 | 1985-11-19 | 株式会社東芝 | Dmaバス負荷可変装置 |
US4570220A (en) * | 1983-11-25 | 1986-02-11 | Intel Corporation | High speed parallel bus and data transfer method |
JPS60151769A (ja) * | 1984-01-19 | 1985-08-09 | Fujitsu Ltd | バス制御方式 |
US4941086A (en) * | 1984-02-02 | 1990-07-10 | International Business Machines Corporation | Program controlled bus arbitration for a distributed array processing system |
US4833596A (en) * | 1985-02-28 | 1989-05-23 | International Business Machines Corporation | Logical arrangement for controlling use of different system displays by main processor and co-processor |
US4757441A (en) * | 1985-02-28 | 1988-07-12 | International Business Machines Corporation | Logical arrangement for controlling use of different system displays by main proessor and coprocessor |
US4689786A (en) * | 1985-03-21 | 1987-08-25 | Apple Computer, Inc. | Local area network with self assigned address method |
US4760515A (en) * | 1985-10-28 | 1988-07-26 | International Business Machines Corporation | Arbitration apparatus for determining priority of access to a shared bus on a rotating priority basis |
JPS62266640A (ja) * | 1986-05-15 | 1987-11-19 | Omron Tateisi Electronics Co | バスア−ビトレ−シヨン回路 |
US5051946A (en) * | 1986-07-03 | 1991-09-24 | Unisys Corporation | Integrated scannable rotational priority network apparatus |
US4980854A (en) * | 1987-05-01 | 1990-12-25 | Digital Equipment Corporation | Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers |
US4947368A (en) * | 1987-05-01 | 1990-08-07 | Digital Equipment Corporation | Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers |
US5129090A (en) * | 1988-05-26 | 1992-07-07 | Ibm Corporation | System bus preempt for 80386 when running in an 80386/82385 microcomputer system with arbitration |
US5032984A (en) * | 1988-09-19 | 1991-07-16 | Unisys Corporation | Data bank priority system |
US4982404A (en) * | 1988-10-12 | 1991-01-01 | American Standard Inc. | Method and apparatus for insuring operation of a multiple part system controller |
US5047921A (en) * | 1989-01-31 | 1991-09-10 | International Business Machines Corporation | Asynchronous microprocessor random access memory arbitration controller |
US4969120A (en) * | 1989-02-13 | 1990-11-06 | International Business Machines Corporation | Data processing system for time shared access to a time slotted bus |
US5119292A (en) * | 1989-07-21 | 1992-06-02 | Clearpoint Research Corporation | Bus device which abstains from round robin arbitration |
-
1989
- 1989-10-27 US US07/428,259 patent/US5293493A/en not_active Expired - Fee Related
-
1990
- 1990-10-15 KR KR1019900016328A patent/KR930005725B1/ko not_active IP Right Cessation
- 1990-10-15 CN CN90108431A patent/CN1031085C/zh not_active Expired - Fee Related
- 1990-10-17 DE DE69026336T patent/DE69026336T2/de not_active Expired - Fee Related
- 1990-10-17 EP EP90311379A patent/EP0425181B1/de not_active Expired - Lifetime
- 1990-10-25 JP JP2286059A patent/JPH0656602B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5293493A (en) | 1994-03-08 |
JPH0656602B2 (ja) | 1994-07-27 |
CN1050936A (zh) | 1991-04-24 |
EP0425181A2 (de) | 1991-05-02 |
CN1031085C (zh) | 1996-02-21 |
KR930005725B1 (ko) | 1993-06-24 |
DE69026336T2 (de) | 1996-10-10 |
EP0425181A3 (en) | 1991-10-23 |
KR910008593A (ko) | 1991-05-31 |
JPH03150654A (ja) | 1991-06-27 |
EP0425181B1 (de) | 1996-04-03 |
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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 |