Invention Grant
- Patent Title: Fracturable lookup table and logic element
- Patent Title (中): 可破坏的查找表和逻辑元素
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Application No.: US11189549Application Date: 2005-07-25
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Publication No.: US07323902B2Publication Date: 2008-01-29
- Inventor: David Lewis , Bruce Pedersen , Sinan Kaptanoglu , Andy L. Lee
- Applicant: David Lewis , Bruce Pedersen , Sinan Kaptanoglu , Andy L. Lee
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agency: Beyer Weaver LLP
- Main IPC: G06F7/38
- IPC: G06F7/38 ; H03K19/177

Abstract:
A logic element includes memory elements, multiplexers, and controls. The multiplexers are arranged in levels including a highest level of multiplexers with inputs connected to the memory elements and outputs connected to inputs of a next-to-highest level of multiplexers and a first level of multiplexers with inputs connected to outputs of a second level of multiplexers and at least one output. The controls are connected to the multiplexers. In a first operational mode the controls determine a first-mode output at the at least one output of the first level of multiplexers, and in a second operational mode the controls determine a plurality of second-mode outputs at selected outputs of multiplexers not at the first level of multiplexers.
Public/Granted literature
- US20060017460A1 Fracturable lookup table and logic element Public/Granted day:2006-01-26
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