GB2192295B - Computer system - Google Patents

Computer system

Info

Publication number
GB2192295B
GB2192295B GB08718518A GB8718518A GB2192295B GB 2192295 B GB2192295 B GB 2192295B GB 08718518 A GB08718518 A GB 08718518A GB 8718518 A GB8718518 A GB 8718518A GB 2192295 B GB2192295 B GB 2192295B
Authority
GB
United Kingdom
Prior art keywords
computer system
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
Application number
GB08718518A
Other versions
GB8718518D0 (en
GB2192295A (en
Inventor
Peter K Bailey
Peter J Brumfitt
Andrew C Sleigh
Neil F Trevett
Nicholas M Trier
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.)
Logica Medizintechnik GmbH
UK Secretary of State for Defence
Original Assignee
Logica Medizintechnik GmbH
UK Secretary of State for Defence
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 Logica Medizintechnik GmbH, UK Secretary of State for Defence filed Critical Logica Medizintechnik GmbH
Priority to GB08718518A priority Critical patent/GB2192295B/en
Publication of GB8718518D0 publication Critical patent/GB8718518D0/en
Publication of GB2192295A publication Critical patent/GB2192295A/en
Application granted granted Critical
Publication of GB2192295B publication Critical patent/GB2192295B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/16Combinations 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
    • G06F15/163Interprocessor communication
    • G06F15/173Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star, snowflake
    • G06F15/17337Direct connection machines, e.g. completely connected computers, point to point communication networks
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08Clock generators with changeable or programmable clock frequency
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02Addressing or allocation; Relocation
    • G06F12/0223User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/0292User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10Program control for peripheral devices
    • G06F13/12Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/124Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine
    • G06F13/128Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine for dedicated transfers to a network
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14Handling requests for interconnection or transfer
    • G06F13/36Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
    • G06F13/37Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a physical-position-dependent priority, e.g. daisy chain, round robin or token passing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/42Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4208Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
    • G06F13/4217Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus with synchronous protocol
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22Microcontrol or microprogram arrangements
    • G06F9/223Execution means for microinstructions irrespective of the microinstruction function, e.g. decoding of microinstructions and nanoinstructions; timing of microinstructions; programmable logic arrays; delays and fan-out problems
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22Microcontrol or microprogram arrangements
    • G06F9/226Microinstruction function, e.g. input/output microinstruction; diagnostic microinstruction; microinstruction format

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multi Processors (AREA)
GB08718518A 1984-06-18 1987-08-05 Computer system Expired GB2192295B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08718518A GB2192295B (en) 1984-06-18 1987-08-05 Computer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8415474 1984-06-18
GB08718518A GB2192295B (en) 1984-06-18 1987-08-05 Computer system

Publications (3)

Publication Number Publication Date
GB8718518D0 GB8718518D0 (en) 1987-09-09
GB2192295A GB2192295A (en) 1988-01-06
GB2192295B true GB2192295B (en) 1988-11-23

Family

ID=26287882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08718518A Expired GB2192295B (en) 1984-06-18 1987-08-05 Computer system

Country Status (1)

Country Link
GB (1) GB2192295B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276056A (en) * 1988-09-13 1990-03-15 Toshiba Corp Information processor
GB2246455A (en) * 1990-07-23 1992-01-29 Philips Electronic Associated Altering the rate at which digital circuitry operates

Also Published As

Publication number Publication date
GB8718518D0 (en) 1987-09-09
GB2192295A (en) 1988-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee