GB1593885A - Data processing system - Google Patents

Data processing system Download PDF

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Publication number
GB1593885A
GB1593885A GB42642/77A GB4264277A GB1593885A GB 1593885 A GB1593885 A GB 1593885A GB 42642/77 A GB42642/77 A GB 42642/77A GB 4264277 A GB4264277 A GB 4264277A GB 1593885 A GB1593885 A GB 1593885A
Authority
GB
United Kingdom
Prior art keywords
request
signal
priority
select
line
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
GB42642/77A
Other languages
English (en)
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1593885A publication Critical patent/GB1593885A/en
Expired 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
    • G06F13/14—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
    • 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
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • G06F13/18—Handling requests for interconnection or transfer for access to memory bus based on priority control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)
  • Bus Control (AREA)
  • Memory System (AREA)
  • Time-Division Multiplex Systems (AREA)
GB42642/77A 1976-10-29 1977-10-13 Data processing system Expired GB1593885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/736,798 US4130864A (en) 1976-10-29 1976-10-29 Priority selection circuit for multiported central functional unit with automatic priority reduction on excessive port request

Publications (1)

Publication Number Publication Date
GB1593885A true GB1593885A (en) 1981-07-22

Family

ID=24961342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42642/77A Expired GB1593885A (en) 1976-10-29 1977-10-13 Data processing system

Country Status (6)

Country Link
US (1) US4130864A (US20030204162A1-20031030-M00001.png)
JP (1) JPS5355931A (US20030204162A1-20031030-M00001.png)
BE (1) BE860282A (US20030204162A1-20031030-M00001.png)
FR (1) FR2369628A1 (US20030204162A1-20031030-M00001.png)
GB (1) GB1593885A (US20030204162A1-20031030-M00001.png)
IT (1) IT1091937B (US20030204162A1-20031030-M00001.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166930A (en) * 1984-10-30 1986-05-14 Raytheon Co Bus arbiter
US4964034A (en) * 1984-10-30 1990-10-16 Raytheon Company Synchronized processing system with bus arbiter which samples and stores bus request signals and synchronizes bus grant signals according to clock signals

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846925C2 (de) * 1978-10-27 1982-09-09 Siemens AG, 1000 Berlin und 8000 München Mikrocomputer-Netzwerk mit mehreren an mindestens einen Systembus angekoppelten Mikrocomputer-Moduln
JPS5846098B2 (ja) * 1978-10-30 1983-10-14 株式会社日立製作所 ル−プバスネットワ−クシステムにおけるバス優先制御方式
JPS5621219A (en) * 1979-07-30 1981-02-27 Nec Corp Request receiving and selecting unit
US4313161A (en) * 1979-11-13 1982-01-26 International Business Machines Corporation Shared storage for multiple processor systems
US4390943A (en) * 1979-12-26 1983-06-28 Honeywell Information Systems Inc. Interface apparatus for data transfer through an input/output multiplexer from plural CPU subsystems to peripheral subsystems
JPS56121126A (en) * 1980-02-26 1981-09-22 Toshiba Corp Priority level assigning circuit
FR2513469B1 (fr) * 1981-09-24 1987-12-11 Thomson Csf Mat Tel Dispositif de selection rapide et automatique d'un signal parmi n
US4675812A (en) * 1983-02-14 1987-06-23 International Business Machines Corp. Priority circuit for channel subsystem having components with diverse and changing requirement for system resources
US4901230A (en) * 1983-04-25 1990-02-13 Cray Research, Inc. Computer vector multiprocessing control with multiple access memory and priority conflict resolution method
DE3466608D1 (en) * 1983-05-06 1987-11-05 Bbc Brown Boveri & Cie Access circuit for parallel buses of data processing systems
US4608663A (en) * 1983-08-31 1986-08-26 Wolsten's Computer Devices, Inc. Computer network for using a common peripheral device
US4787033A (en) * 1983-09-22 1988-11-22 Digital Equipment Corporation Arbitration mechanism for assigning control of a communications path in a digital computer system
US4835672A (en) * 1984-04-02 1989-05-30 Unisys Corporation Access lock apparatus for use with a high performance storage unit of a digital data processing system
US4630197A (en) * 1984-04-06 1986-12-16 Gte Communication Systems Corporation Anti-mutilation circuit for protecting dynamic memory
US4745545A (en) * 1985-06-28 1988-05-17 Cray Research, Inc. Memory reference control in a multiprocessor
US4858173A (en) * 1986-01-29 1989-08-15 Digital Equipment Corporation Apparatus and method for responding to an aborted signal exchange between subsystems in a data processing system
US4821177A (en) * 1986-09-02 1989-04-11 Honeywell Bull Inc. Apparatus for controlling system accesses having multiple command level conditional rotational multiple port servicing priority hierarchy
GB2196762B (en) * 1986-10-27 1990-12-19 Burr Brown Ltd Interleaved access to global memory by high priority source
US4812968A (en) * 1986-11-12 1989-03-14 International Business Machines Corp. Method for controlling processor access to input/output devices
JPS63132369A (ja) * 1986-11-21 1988-06-04 Oki Electric Ind Co Ltd メモリ情報転送方式
US5283903A (en) * 1986-12-25 1994-02-01 Nec Corporation Priority selector
US5214769A (en) * 1987-12-24 1993-05-25 Fujitsu Limited Multiprocessor control system
EP0351157B1 (en) * 1988-07-12 1995-11-22 Sony Corporation Semiconductor integrated circuits
US5179667A (en) * 1988-09-14 1993-01-12 Silicon Graphics, Inc. Synchronized DRAM control apparatus using two different clock rates
US5193193A (en) * 1988-09-14 1993-03-09 Silicon Graphics, Inc. Bus control system for arbitrating requests with predetermined on/off time limitations
EP0374764B1 (en) * 1988-12-19 2001-04-04 Nec Corporation Data transfer apparatus
US5303351A (en) * 1988-12-30 1994-04-12 International Business Machines Corporation Error recovery in a multiple 170 channel computer system
US5142638A (en) * 1989-02-07 1992-08-25 Cray Research, Inc. Apparatus for sharing memory in a multiprocessor system
US5095460A (en) * 1989-04-25 1992-03-10 Digital Equipment Corporation Rotating priority encoder operating by selectively masking input signals to a fixed priority encoder
US5206952A (en) * 1990-09-12 1993-04-27 Cray Research, Inc. Fault tolerant networking architecture
WO1992015060A1 (en) * 1991-02-19 1992-09-03 International Business Machines Corporation Channel selection arbitration
JP3199966B2 (ja) * 1994-11-21 2001-08-20 キヤノン株式会社 情報処理装置及びそのプリンタ選択方法
US5754865A (en) * 1995-12-18 1998-05-19 International Business Machines Corporation Logical address bus architecture for multiple processor systems
US5815023A (en) * 1997-03-20 1998-09-29 Sun Microsystems, Inc. Unbalanced multiplexer and arbiter combination
US6925520B2 (en) * 2001-05-31 2005-08-02 Sun Microsystems, Inc. Self-optimizing crossbar switch
CN1318941C (zh) * 2003-08-05 2007-05-30 华为技术有限公司 一种端口轮询选择方法
KR102234056B1 (ko) * 2019-04-24 2021-03-31 (주)스티커스 코퍼레이션 도담쌀 성분을 포함하는 기능성 개껌 및 이에 의해 제조된 기능성 개껌

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333252A (en) * 1965-01-18 1967-07-25 Burroughs Corp Time-dependent priority system
NL164143C (nl) * 1965-09-10 Ibm Gegevensverwerkend systeem met variabele prioriteiten.
FR1541240A (fr) * 1966-11-10 Ibm Accès à chevauchement et à intercalation pour mémoires à plusieurs vitesses
US3573856A (en) * 1969-06-24 1971-04-06 Texas Instruments Inc Distributed priority of access to a computer unit
US3638198A (en) * 1969-07-09 1972-01-25 Burroughs Corp Priority resolution network for input/output exchange
US3753014A (en) * 1971-03-15 1973-08-14 Burroughs Corp Fast inhibit gate with applications
US3798591A (en) * 1971-09-28 1974-03-19 Gen Electric Co Ltd Access circuit for a time-shared data processing equipment
IT971304B (it) * 1972-11-29 1974-04-30 Honeywell Inf Systems Sistema di accesso a priorita variabile dinamicamente
US3866181A (en) * 1972-12-26 1975-02-11 Honeywell Inf Systems Interrupt sequencing control apparatus
JPS5435482B2 (US20030204162A1-20031030-M00001.png) * 1973-03-29 1979-11-02
JPS5014246A (US20030204162A1-20031030-M00001.png) * 1973-06-06 1975-02-14
GB1442078A (en) * 1973-07-21 1976-07-07 Ibm Data handling system
IT998437B (it) * 1973-08-22 1976-01-20 Honeywell Inf Systems Sistema di accesso a scansione ciclica variabile delle richieste di interruzione
US3921145A (en) * 1973-10-12 1975-11-18 Burroughs Corp Multirequest grouping computer interface
IT1002275B (it) * 1973-12-27 1976-05-20 Honeywell Inf Systems Sistema di elaborazione dati a piu canali di ingresso uscita a risorse orientate per livelli di servizio distinti e interrompi bili
US3967246A (en) * 1974-06-05 1976-06-29 Bell Telephone Laboratories, Incorporated Digital computer arrangement for communicating data via data buses
US4009470A (en) * 1975-02-18 1977-02-22 Sperry Rand Corporation Pre-emptive, rotational priority system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166930A (en) * 1984-10-30 1986-05-14 Raytheon Co Bus arbiter
US4964034A (en) * 1984-10-30 1990-10-16 Raytheon Company Synchronized processing system with bus arbiter which samples and stores bus request signals and synchronizes bus grant signals according to clock signals

Also Published As

Publication number Publication date
US4130864A (en) 1978-12-19
JPS5355931A (en) 1978-05-20
FR2369628A1 (fr) 1978-05-26
JPS5718220B2 (US20030204162A1-20031030-M00001.png) 1982-04-15
BE860282A (fr) 1978-04-28
IT1091937B (it) 1985-07-06
FR2369628B1 (US20030204162A1-20031030-M00001.png) 1984-08-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee