JPS6485421A - Programmable logic device - Google Patents

Programmable logic device

Info

Publication number
JPS6485421A
JPS6485421A JP62243026A JP24302687A JPS6485421A JP S6485421 A JPS6485421 A JP S6485421A JP 62243026 A JP62243026 A JP 62243026A JP 24302687 A JP24302687 A JP 24302687A JP S6485421 A JPS6485421 A JP S6485421A
Authority
JP
Japan
Prior art keywords
points
logic circuit
circuit components
wires
crossed
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.)
Pending
Application number
JP62243026A
Other languages
Japanese (ja)
Inventor
Makoto Sakamoto
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP62243026A priority Critical patent/JPS6485421A/en
Publication of JPS6485421A publication Critical patent/JPS6485421A/en
Pending legal-status Critical Current

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  • Logic Circuits (AREA)

Abstract

PURPOSE:To smooth the connection between circuit components by forming a zigzag complex arrangement to programmable logic circuit components and arranging a switch circuit to a point where wires of wiring region caused by the complex arrangement are crossed or collected so as to improve the degree of freedom of branch. CONSTITUTION:The programmable logic circuit elements E is a zigzag complex arrangement while even number order of columns are shifted vertically from the left, and the wiring region 1 arranged with plural wires longitudinally and laterally is formed between the logic circuit components E. Lots of T points 1a being signal branch points are formed to the wiring region 1 by the zigzag arrangement. Since the input/output wirings of logic circuit components E and plural wires are crossed or gathered to the T points 1a, a switch circuit S connecting/disconnecting the crossed or gathered wires programmably is arranged. Thus, lots of cross or gathered points of wirings are given to the wire region and the locations offering effective branch are increased to improve the degree of freedom of progammable wirings.
JP62243026A 1987-09-28 1987-09-28 Programmable logic device Pending JPS6485421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243026A JPS6485421A (en) 1987-09-28 1987-09-28 Programmable logic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243026A JPS6485421A (en) 1987-09-28 1987-09-28 Programmable logic device

Publications (1)

Publication Number Publication Date
JPS6485421A true JPS6485421A (en) 1989-03-30

Family

ID=17097764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243026A Pending JPS6485421A (en) 1987-09-28 1987-09-28 Programmable logic device

Country Status (1)

Country Link
JP (1) JPS6485421A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008236756A (en) * 2007-03-21 2008-10-02 Altera Corp Staggered logic array block architecture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008236756A (en) * 2007-03-21 2008-10-02 Altera Corp Staggered logic array block architecture

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