Texas Instruments Corporation

Graham McLeod Barr

Richard D Simpson

Clive D Bittlestone

Dharin Nayeshbhai Shah

Girishankar Gurumurthy

Pavan Vithal Torvi

Laura Simmonite

Generating cells with increased signal routing resources. In an embodiment, power and ground buses in a metal layer of a source cell are identified and removed. Any vias terminating on the removed buses may also be removed. Additional via and connections are added to other desired layers to provide connectivity to the nodes disconnected due to the earlier removal. According to an aspect of the present invention, such connections are added during a chip design phase (i.e., when the cell instances are incorporated into an integrated circuit, sought to be designed).

Generation of standard cell library components with increased signal routing resources

A content addressable memory (CAM) system ( ) is disclosed which includes a CAM array ( ) for storing an array of data words. More than one data word is stored on each row with the bits of the data word columns interleaved with each other. The CAM array ( ) is accessed during one of several modes of operation in accordance with signals from a bit line controller ( ) which activate certain ones of a plurality of bit lines coupling the bit line controller ( ) to the CAM array ( ). The modes of operation, as indicated by a mode control signal, include a write mode, a read mode and a match mode. In first embodiment of the present invention, the bit line controller ( ) sequentially accesses each of the columns of data words by selectively activating certain of the bit lines in accordance with a column address signal and the mode control signal.

Content addressable memory (CAM)

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Allen, TX, United States of America

Graham McLeod Barr