Invention Application
- Patent Title: Area efficient fractureable logic elements
- Patent Title (中): 区域有效的可断裂逻辑元件
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Application No.: US11234538Application Date: 2005-09-22
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Publication No.: US20070063732A1Publication Date: 2007-03-22
- Inventor: Sinan Kaptanoglu , Bruce Pedersen , James Schleicher , Jinyong Yuan , Michael Hutton , David Lewis
- Applicant: Sinan Kaptanoglu , Bruce Pedersen , James Schleicher , Jinyong Yuan , Michael Hutton , David Lewis
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: H03K19/177
- IPC: H03K19/177

Abstract:
A fracturable logic element includes a first, second, third, and fourth two-input lookup tables (2-LUTs). Each 2-LUT includes four memory elements. Each memory element is configured to hold one data bit. The fracturable logic element also includes a set of six inputs and a control circuit configured to operate in a first mode and a second mode. When the control circuit operates in the first mode, a first combinatorial output is generated using four of the set of six inputs and the first, second, third, and fourth 2-LUTs. When the control circuit operates in the second mode, a second combinatorial output is generated using a first subset of three of the set of six inputs and the first and second 2-LUTS. Additionally, when the control circuit operates in the second mode, a third combinatorial output is generated using a second subset of three of the set of six inputs and the third and fourth 2-LUTs, the first and second subsets being non-intersecting subsets of the set of six inputs.
Public/Granted literature
- US07330052B2 Area efficient fractureable logic elements Public/Granted day:2008-02-12
Information query
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