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GB2346724B - Programmable logic devices - Google Patents

Programmable logic devices

Info

Publication number
GB2346724B
GB2346724B GB0011195A GB0011195A GB2346724B GB 2346724 B GB2346724 B GB 2346724B GB 0011195 A GB0011195 A GB 0011195A GB 0011195 A GB0011195 A GB 0011195A GB 2346724 B GB2346724 B GB 2346724B
Authority
GB
United Kingdom
Prior art keywords
programmable logic
logic devices
devices
programmable
logic
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
Application number
GB0011195A
Other versions
GB2346724A (en
GB0011195D0 (en
Inventor
Srinivas T Reddy
Richard G Cliff
Christopher F Lane
Ketan H Zaveri
Manual M Mejia
Bruce B Pederson
David E Jefferson
Any L Lee
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.)
Altera Corp
Original Assignee
Altera 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
Priority claimed from US08/855,192 external-priority patent/US5977793A/en
Application filed by Altera Corp filed Critical Altera Corp
Publication of GB0011195D0 publication Critical patent/GB0011195D0/en
Publication of GB2346724A publication Critical patent/GB2346724A/en
Application granted granted Critical
Publication of GB2346724B publication Critical patent/GB2346724B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17736—Structural details of routing resources
    • 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
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)
  • Logic Circuits (AREA)
GB0011195A 1996-10-10 1997-09-26 Programmable logic devices Expired - Fee Related GB2346724B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US2820696P 1996-10-10 1996-10-10
US3781597P 1997-02-05 1997-02-05
US08/855,192 US5977793A (en) 1996-10-10 1997-05-13 Programmable logic device with hierarchical interconnection resources
GB9720543A GB2318199B (en) 1996-10-10 1997-09-26 Programmable logic device with hierarchical interconnection resources

Publications (3)

Publication Number Publication Date
GB0011195D0 GB0011195D0 (en) 2000-06-28
GB2346724A GB2346724A (en) 2000-08-16
GB2346724B true GB2346724B (en) 2000-12-06

Family

ID=27451706

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0011200A Expired - Fee Related GB2346725B (en) 1996-10-10 1997-09-26 Programmable logic device with hierarchical interconnection resources
GB0011195A Expired - Fee Related GB2346724B (en) 1996-10-10 1997-09-26 Programmable logic devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0011200A Expired - Fee Related GB2346725B (en) 1996-10-10 1997-09-26 Programmable logic device with hierarchical interconnection resources

Country Status (1)

Country Link
GB (2) GB2346725B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192875A2 (en) * 1984-09-26 1986-09-03 Xilinx, Inc. Bidirectional amplifier
US5583452A (en) * 1995-10-26 1996-12-10 Xilinx, Inc. Tri-directional buffer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5455525A (en) * 1993-12-06 1995-10-03 Intelligent Logic Systems, Inc. Hierarchically-structured programmable logic array and system for interconnecting logic elements in the logic array
US5541530A (en) * 1995-05-17 1996-07-30 Altera Corporation Programmable logic array integrated circuits with blocks of logic regions grouped into super-blocks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192875A2 (en) * 1984-09-26 1986-09-03 Xilinx, Inc. Bidirectional amplifier
US5583452A (en) * 1995-10-26 1996-12-10 Xilinx, Inc. Tri-directional buffer

Also Published As

Publication number Publication date
GB2346724A (en) 2000-08-16
GB0011195D0 (en) 2000-06-28
GB0011200D0 (en) 2000-06-28
GB2346725B (en) 2000-12-13
GB2346725A (en) 2000-08-16

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Legal Events

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

Effective date: 20080926