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IT1169691B - Circuito di controllo d'accesso a una memoria - Google Patents

Circuito di controllo d'accesso a una memoria

Info

Publication number
IT1169691B
IT1169691B IT23696/83A IT2369683A IT1169691B IT 1169691 B IT1169691 B IT 1169691B IT 23696/83 A IT23696/83 A IT 23696/83A IT 2369683 A IT2369683 A IT 2369683A IT 1169691 B IT1169691 B IT 1169691B
Authority
IT
Italy
Prior art keywords
control circuit
access control
memory access
memory
circuit
Prior art date
Application number
IT23696/83A
Other languages
English (en)
Other versions
IT8323696A0 (it
Inventor
B Tin Kam
Original Assignee
A E L Microtel 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 A E L Microtel Ltd filed Critical A E L Microtel Ltd
Publication of IT8323696A0 publication Critical patent/IT8323696A0/it
Application granted granted Critical
Publication of IT1169691B publication Critical patent/IT1169691B/it

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
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
    • G06F13/1652—Handling requests for interconnection or transfer for access to memory bus based on arbitration in a multiprocessor architecture
    • G06F13/1663—Access to shared memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)
  • Radio Relay Systems (AREA)
  • Memory System (AREA)
IT23696/83A 1982-12-10 1983-11-14 Circuito di controllo d'accesso a una memoria IT1169691B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/448,448 US4549273A (en) 1982-12-10 1982-12-10 Memory access control circuit

Publications (2)

Publication Number Publication Date
IT8323696A0 IT8323696A0 (it) 1983-11-14
IT1169691B true IT1169691B (it) 1987-06-03

Family

ID=23780336

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23696/83A IT1169691B (it) 1982-12-10 1983-11-14 Circuito di controllo d'accesso a una memoria

Country Status (5)

Country Link
US (1) US4549273A (it)
JP (1) JPS59114659A (it)
BE (1) BE898422A (it)
CA (1) CA1205202A (it)
IT (1) IT1169691B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166046B1 (en) * 1984-06-25 1988-08-24 International Business Machines Corporation Graphical display apparatus with pipelined processors
JPS6149258A (ja) * 1984-08-17 1986-03-11 Fanuc Ltd 外部記憶装置の入出力制御方式
US5297260A (en) * 1986-03-12 1994-03-22 Hitachi, Ltd. Processor having a plurality of CPUS with one CPU being normally connected to common bus
US6379998B1 (en) 1986-03-12 2002-04-30 Hitachi, Ltd. Semiconductor device and method for fabricating the same
GB2215874A (en) * 1988-03-23 1989-09-27 Benchmark Technologies Arbitration system
JPH0424862A (ja) * 1990-05-18 1992-01-28 Nec Corp 処理装置間の障害検出方式
EP0523627A3 (en) * 1991-07-15 1993-08-25 Matsushita Electric Works, Ltd. Multi-cpu programmable controller
JP3057934B2 (ja) * 1992-10-30 2000-07-04 日本電気株式会社 共有バス調停機構
US5668973A (en) * 1995-04-14 1997-09-16 Ascom Hasler Mailing Systems Ag Protection system for critical memory information
US5748983A (en) * 1995-06-07 1998-05-05 Advanced Micro Devices, Inc. Computer system having a dedicated multimedia engine and multimedia memory having arbitration logic which grants main memory access to either the CPU or multimedia engine
US5832277A (en) * 1996-03-08 1998-11-03 3 Com Corporation System for arbitrating demand on memory during configuration of a computer add-on card
US5907862A (en) * 1996-07-16 1999-05-25 Standard Microsystems Corp. Method and apparatus for the sharing of a memory device by multiple processors
US6163828A (en) * 1998-05-22 2000-12-19 Lucent Technologies Inc. Methods and apparatus for providing multi-processor access to shared memory
GB2497525A (en) 2011-12-12 2013-06-19 St Microelectronics Ltd Controlling shared memory data flow

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215395A (en) * 1978-08-24 1980-07-29 Texas Instruments Incorporated Dual microprocessor intelligent programmable process control system
US4249093A (en) * 1978-09-06 1981-02-03 Lockheed Electronics Co., Inc. Multiple request arbitration circuit
US4237534A (en) * 1978-11-13 1980-12-02 Motorola, Inc. Bus arbiter
FR2455837A1 (fr) * 1979-05-04 1980-11-28 Cit Alcatel Logique de commande d'une unite de raccordement de multiplex dans un central de commutation temporelle
US4354227A (en) * 1979-11-19 1982-10-12 International Business Machines Corp. Fixed resource allocation method and apparatus for multiprocessor systems having complementarily phased cycles
US4423384A (en) * 1981-12-21 1983-12-27 Motorola, Inc. Asynchronous multi-port arbiter

Also Published As

Publication number Publication date
IT8323696A0 (it) 1983-11-14
JPS59114659A (ja) 1984-07-02
US4549273A (en) 1985-10-22
CA1205202A (en) 1986-05-27
BE898422A (fr) 1984-03-30

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