06184707 is referenced by 167 patents and cites 59 patents.

A logic element for a programmable logic device. The logic element includes a look-up table (

400

) for implementing logical functions, a programmable delay block (

415

), a storage block (

430

) configurable as a latch or a flip-flop, and a diagnostic shadow latch (

435

). A plurality of inputs (

410

) to the logic element and complements of these inputs are available to control the secondary functions of the storage block (

430

).

Title
Look-up table based logic element with complete permutability of the inputs to the secondary signals
Application Number
9/168307
Publication Number
6184707 (B2)
Application Date
October 7, 1998
Publication Date
February 6, 2001
Inventor
Michael R Butts
Beaverton
OR, US
Stephen P Sample
Saratoga
CA, US
Rakesh H Patel
Cupertino
CA, US
Kevin A Norman
Belmont
CA, US
Agent
Townsend and Townsend and Crew
US
Assignee
Quickturn Design Systems
CA, US
Altera Corporation
CA, US
IPC
G06F 9/38
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