US4870302A — Configurable electrical circuit having configurab…

Claim 1

Independent Claim 109 words

An interconnect structure for programmably interconnecting lines within an integrated circuit comprising: at least three sets of interconnect line including a first set, a second set, and a third set; programmable means, not including said sets of interconnect lines, for connecting at least one of said lines in said first set to at least one of said lines in said second set, for connecting at least one of said lines in said first set to at least one of said lines in said third set, and for connecting at least one of said lines in said second set to at least one of said lines in said third set.

Claim 2

Dependent Claim 109 words

An interconnect structure for programmably interconnecting lines within an integrated circuit comprising: at least three sets of interconnect line including a first set, a second set, and a third set; programmable means, not including said sets of interconnect lines, for connecting at least one of said lines in said first set to at least one of said lines in said second set, for connecting at least one of said lines in said first set to at least one of said lines in said third set, and for connecting at least one of said lines in said second set to at least one of said lines in said third set.

Claim 3

Dependent Claim 45 words

An array of interconnect structures, each said interconnect structure as in claim 1, and each interconnect structure in said array having its own selected number of interconnect lines and its own programmable means for connecting interconnect lines in its own first, second and third sets.

Claim 4

Dependent Claim 64 words

An interconnect structure as in claim 1 in which said first set comprises two lines; and said programmable means comprises means for connecting each of said two lines in said first set to at least one line in said second set and means for connecting each of said two lines in said first set to said at least one line in said third set.

Claim 5

Dependent Claim 45 words

An array of interconnect structures, each said interconnect structure as in claim 3, and each interconnect structure in said array having its own selected number of interconnect lines and its own programmable means for connecting interconnect lines in its own first, second and third sets.

Claim 6

Dependent Claim 94 words

An interconnect structure as in claim 3 in which said second set comprises two lines, and said third set comprises two lines; and said programmable means comprises means for connecting each of said two lines in said first set to each of said two lines in said second set, means for connecting each of said two lines in said first set to each of said two lines in said third set, and means for connecting each of said two lines in said second set to each of said two lines in said third set.

Claim 7

Dependent Claim 45 words

An array of interconnect structures, each said interconnect structure as in claim 5, and each interconnect structure in said array having its own selected number of interconnect lines and its own programmable means for connecting interconnect lines in its own first, second and third sets.

Claim 8

Dependent Claim 55 words

An interconnect structure as in claim 5 in which said at least three sets of interconnect lines includes a fourth set, and said interconnect structure further comprises: programmable means for connecting at least one of said lines in said fourth set to at least one of said lines in said first, second and third sets.

Claim 9

Dependent Claim 46 words

An array of interconnect structures, each said interconnect structure as in claim 7, and each interconnect structure in said array having its own selected number of interconnect lines and its own programmable means for connecting interconnect lines in its own first, second, third and fourth sets.

Claim 10

Dependent Claim 145 words

An interconnect structure as in claim 7 in which said programmable means for connecting at least one of said lines in said first, second, third, and fourth sets comprises programmable means for connecting said two lines in said first set to each of said two lines in said second set, for connecting said two lines in said first set to each of said two lines in said third set, for connecting said two lines in said first set to each of two lines in said fourth set, for connecting said two lines in said second set to each of said two lines in said third set, for connecting said two lines in said second set to each of said two lines in said fourth set, and for connecting said two lines in said third set to each of said two lines in said fourth set.

Claim 11

Dependent Claim 35 words

An array of interconnect structures, each said interconnect structure as in claim 9, and each interconnect structure in said array having its own selected number of interconnect lines and its own programmable means for connecting.

Claim 12

Dependent Claim 61 words

A configurable system comprising: one master configurable logic array; a plurality of slave configurable logic arrays; at least one memory; said master configurable logic array having means for retrieving data from said at least one memory, means for first using said data for configuring itself, and means for passing some of said data to said plurality of slave configurable logic arrays.

Claim 13

Dependent Claim 61 words

A configurable system comprising: one master configurable logic array; a plurality of slave configurable logic arrays; at least one memory; said master configurable logic array having means for retrieving data from said at least one memory, means for first using said data for configuring itself, and means for passing some of said data to said plurality of slave configurable logic arrays.

Claim 14

Dependent Claim 51 words

A configurable system as in claim 11 in which said means for retrieving data from said at least one memory includes means for addressing said memory cells in said at least one memory, and means for transferring selected data from said at least one memory to said master configurable logic array.

Claim 15

Dependent Claim 63 words

A configurable system as in claim 11 in which said plurality of slave configurable logic arrays include means for being configured and means for receiving and passing said data from said master configurable logic array to said plurality of slave configurable logic arrays whereby each of said slave configurable logic arrays is programmed according to said data in said at least one memory.

Claim 16

Dependent Claim 57 words

A configurable system as in claim 11 in which said means for passing some of said data to said plurality of slave configurable logic arrays comprises means for passing said data through said plurality of slave configurable logic arrays sequentially by means of a shift register controlled by clock signals provided by said master configurable logic array.

Claim 17

Dependent Claim 63 words

A configurable system comprising: a master configurable logic array; a plurality of slave configurable logic arrays; and a controller including means for addressing said configurable logic arrays and means for sending data to said configurable logic arrays; wherein said master configurable logic array includes means for being configured by said data from said controller and means for configuring said slave configurable logic arrays.

Claim 18

Dependent Claim 63 words

A configurable system comprising: a master configurable logic array; a plurality of slave configurable logic arrays; and a controller including means for addressing said configurable logic arrays and means for sending data to said configurable logic arrays; wherein said master configurable logic array includes means for being configured by said data from said controller and means for configuring said slave configurable logic arrays.

Claim 19

Dependent Claim 33 words

A configurable system as in claim 15 in which said slave configurable logic arrays include means for being configured and means for receiving and passing said data from said master configurable logic array.

Claim 20

Dependent Claim 27 words

A configurable system as in claim 15 in which said means for addressing further includes means for controlling sending said data from said means for sending data.

Claim 21

Dependent Claim 54 words

A configurable system as in claim 15 in which said means for configuring said slave configurable logic arrays comprises means for receiving data from said controller, means for passing some of said data to said slave configurable logic arrays and means for controlling the passing of said data to said slave configurable logic arrays.

Claim 22

Dependent Claim 73 words

A configurable system as in claim 15 in which said means for being configured of said master configurable logic array comprises means for receiving configuration control bits from said controller, and said means for configuring said slave configurable logic arrays comprises means for passing said data through said plurality of slave configurable logic arrays sequentially by means of a shift register as controlled by clock signals provided by said master configurable logic array.

Claim 23

Dependent Claim 12 words

A configurable system as in claim 11 wherein said memory is nonvolatile.

Claim 24

Dependent Claim 219 words

A programmable circuit comprising: a plurality of configurable logic elements, each configurable logic element having a plurality of input leads and at least one output lead and having a programming means to cause said configurable logic element to perform a selected logic function; a plurality of input/output ports; a group of interconnect lines; means for programmably connecting each of said input leads of each of said configurable logic elements to at least one of said interconnect lines; means for programmably connecting said at least one output lead of each of said configurable logic elements to at least one of said interconnect lines; means for programmably connecting each of said input/output ports to at least one of said interconnect lines; and means for programmably connecting each one of said interconnect lines to at least one other of said interconnect lines; whereby each of said input leads and each of said at least one output lead of each of said configurable logic elements can be connected directly or indirectly to each of said input/output ports and to each other, and whereby each of said configurable logic elements can be programmed to perform a selected one of a plurality of logic functions, and said configurable logic elements can be connected to each other and to said input/output ports in a selectable manner.

Claim 25

Dependent Claim 219 words

A programmable circuit comprising: a plurality of configurable logic elements, each configurable logic element having a plurality of input leads and at least one output lead and having a programming means to cause said configurable logic element to perform a selected logic function; a plurality of input/output ports; a group of interconnect lines; means for programmably connecting each of said input leads of each of said configurable logic elements to at least one of said interconnect lines; means for programmably connecting said at least one output lead of each of said configurable logic elements to at least one of said interconnect lines; means for programmably connecting each of said input/output ports to at least one of said interconnect lines; and means for programmably connecting each one of said interconnect lines to at least one other of said interconnect lines; whereby each of said input leads and each of said at least one output lead of each of said configurable logic elements can be connected directly or indirectly to each of said input/output ports and to each other, and whereby each of said configurable logic elements can be programmed to perform a selected one of a plurality of logic functions, and said configurable logic elements can be connected to each other and to said input/output ports in a selectable manner.

Claim 26

Dependent Claim 23 words

A programmable circuit as in claim 21 wherein said programming means of each of said configurable logic elements comprises logic element pass transistors.

Claim 27

Dependent Claim 38 words

A programmable circuit as in claim 22 wherein said programming means includes a plurality of memory cells and wherein each of said logic element pass transistors is controlled by a corresponding one of said plurality of memory cells.

Claim 28

Dependent Claim 53 words

A programmable circuit as in claim 23 in which said plurality of memory cells forms at least part of a shift register, control signals being loaded into said memory cells by being transferred through said shift register until each of said signals is properly located in said corresponding one of said memory cells.

Claim 29

Dependent Claim 15 words

A programmable circuit as in claim 23 in which said memory cells can be re-programmed.

Claim 30

Dependent Claim 71 words

A programmable circuit as in claim 21 in which each of said interconnect lines is capable of being connected directly or indirectly to one or more of the other of said interconnect lines, to one or more of said input/output ports, to one or more of said input leads and to one or more of said output leads, thereby allowing a user to connect said leads and lines together as desired.

Claim 31

Dependent Claim 101 words

A programmable interconnect circuit as in claim 21 wherein said means for programmably connecting each of said input leads of each of said configurable logic elements to at least one of said interconnect lines, said means for programmably connecting said at least one output lead of each of said configurable logic elements to at least one of said interconnect lines, said means for programmably connecting each of said input/output ports to at least one of said interconnect lines, and said means for programmably connecting each of said interconnect lines to at least one other of said interconnect lines comprise pass transistors.

Claim 32

Dependent Claim 86 words

A programmable circuit as in claim 27 wherein said means for programmably connecting further comprises memory cells, said memory cells forming at least part of a shift register, wherein each of said pass transistors is controlled by one of said memory cells, and wherein said means for programmably connecting further comprises means for transferring said series of signals through said shift register until each of said signals is properly located in an associated one of said memory cells uniquely coupled to one of said pass transistors.

Claim 33

Dependent Claim 30 words

A programmable circuit as in claim 28 in which said means for programmably connecting includes means for changing the contents of said memory cells, thereby to reconfigure said programmable circuit.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-09-25	1993-03-27	1993-09-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-09-25	1997-03-27	1997-09-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-09-25	2001-03-27	2001-09-26	$7700.00	Window Closed / Lapsed

Configurable electrical circuit having configurable logic elements and configurable interconnects

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