GB2202356B - Configurable combinational logic circuit - Google Patents

Configurable combinational logic circuit

Info

Publication number
GB2202356B
GB2202356B GB8808562A GB8808562A GB2202356B GB 2202356 B GB2202356 B GB 2202356B GB 8808562 A GB8808562 A GB 8808562A GB 8808562 A GB8808562 A GB 8808562A GB 2202356 B GB2202356 B GB 2202356B
Authority
GB
United Kingdom
Prior art keywords
logic circuit
combinational logic
configurable combinational
configurable
circuit
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
GB8808562A
Other versions
GB8808562D0 (en
GB2202356A (en
Inventor
William S Carter
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.)
Xilinx Inc
Original Assignee
Xilinx Inc
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
Priority claimed from US06/706,429 external-priority patent/US4706216A/en
Application filed by Xilinx Inc filed Critical Xilinx Inc
Publication of GB8808562D0 publication Critical patent/GB8808562D0/en
Publication of GB2202356A publication Critical patent/GB2202356A/en
Application granted granted Critical
Publication of GB2202356B publication Critical patent/GB2202356B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
    • H03K5/1534—Transition or edge detectors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • G11C19/282—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements with charge storage in a depletion layer, i.e. charge coupled devices [CCD]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/1733—Controllable logic circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/1733—Controllable logic circuits
    • H03K19/1735—Controllable logic circuits by wiring, e.g. uncommitted logic arrays
    • H03K19/1736—Controllable logic circuits by wiring, e.g. uncommitted logic arrays in which the wiring can be modified
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/037—Bistable circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Logic Circuits (AREA)
GB8808562A 1985-02-27 1986-02-26 Configurable combinational logic circuit Expired GB2202356B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/706,429 US4706216A (en) 1985-02-27 1985-02-27 Configurable logic element
GB8604761A GB2171546B (en) 1985-02-27 1986-02-26 Configurable logic element

Publications (3)

Publication Number Publication Date
GB8808562D0 GB8808562D0 (en) 1988-05-11
GB2202356A GB2202356A (en) 1988-09-21
GB2202356B true GB2202356B (en) 1989-10-11

Family

ID=26290408

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8808561A Expired GB2202355B (en) 1985-02-27 1986-02-26 Configurable storage circuit
GB8808562A Expired GB2202356B (en) 1985-02-27 1986-02-26 Configurable combinational logic circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8808561A Expired GB2202355B (en) 1985-02-27 1986-02-26 Configurable storage circuit

Country Status (1)

Country Link
GB (2) GB2202355B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847612A (en) * 1988-01-13 1989-07-11 Plug Logic, Inc. Programmable logic device
GB8828828D0 (en) * 1988-12-09 1989-01-18 Pilkington Micro Electronics Semiconductor integrated circuit
DE69227144T2 (en) * 1991-05-10 1999-03-18 Toshiba Kawasaki Kk Programmable logic unit
US6759870B2 (en) 1991-09-03 2004-07-06 Altera Corporation Programmable logic array integrated circuits
US20020130681A1 (en) 1991-09-03 2002-09-19 Cliff Richard G. Programmable logic array integrated circuits
US5633830A (en) * 1995-11-08 1997-05-27 Altera Corporation Random access memory block circuitry for programmable logic array integrated circuit devices
US5274581A (en) * 1992-05-08 1993-12-28 Altera Corporation Look up table implementation of fast carry for adders and counters
GB2267614B (en) * 1992-06-02 1996-01-24 Plessey Semiconductors Ltd Logic cell
US5311080A (en) * 1993-03-26 1994-05-10 At&T Bell Laboratories Field programmable gate array with direct input/output connection
US5815726A (en) * 1994-11-04 1998-09-29 Altera Corporation Coarse-grained look-up table architecture
US6720796B1 (en) 2001-05-06 2004-04-13 Altera Corporation Multiple size memories in a programmable logic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138188A (en) * 1983-04-14 1984-10-17 Control Data Corp Soft programmable logic array

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296426A (en) * 1963-07-05 1967-01-03 Westinghouse Electric Corp Computing device
GB1101851A (en) * 1965-01-20 1968-01-31 Ncr Co Generalized logic circuitry
US3459927A (en) * 1965-10-18 1969-08-05 Ibm Apparatus for checking logical connective circuits
US4032894A (en) * 1976-06-01 1977-06-28 International Business Machines Corporation Logic array with enhanced flexibility
US4415818A (en) * 1979-01-16 1983-11-15 Nippon Telegraph & Telephone Corp. Programmable sequential logic circuit devices
GB2121631B (en) * 1980-07-11 1984-12-19 Fairchild Camera Instr Co Flip-flop circuit
GB2171231B (en) * 1985-02-14 1989-11-01 Intel Corp Software programmable logic array

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138188A (en) * 1983-04-14 1984-10-17 Control Data Corp Soft programmable logic array

Also Published As

Publication number Publication date
GB8808562D0 (en) 1988-05-11
GB2202355A (en) 1988-09-21
GB2202355B (en) 1989-10-11
GB2202356A (en) 1988-09-21
GB8808561D0 (en) 1988-05-11

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Legal Events

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

Effective date: 19970226