Lsi Logic Corporation

Alexander Tetelbuam

Qiong J Yu

A method of datapath cell placement is disclosed that minimizes signal propagation time through a datapath macro and datapath macro area that includes the steps of receiving as input a datapath description for a datapath block wherein the datapath description describes at least one of a plurality of datapath cells, a plurality of data input pins, a plurality of data output pins, and a plurality of control signal pins; sorting the plurality of data input pins and the plurality of data output pins according to a hierarchy of sorting criteria; determining a plurality of corresponding criticality values for the plurality of datapath cells; sorting the plurality of datapath cells according to the plurality of corresponding criticality values; assigning the plurality of datapath cells to a plurality of corresponding columns; and arranging the plurality of datapath cells within at least one of the plurality of corresponding columns to minimize signal propagation delay through the datapath block.

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Hayward, CA, United States of America

Alexander Tetelbuam