Patent ID: 6642556
Filing Date: 2003-11-04
Classification: G06F

Abstract:
A method of routing internal signal paths from a plurality of input interconnects on a macro cell to a plurality of output interconnects on said macro cell comprising the steps of:placing a plurality of input interconnects at premapped input interconnect positions on an input edge of said macro cell; placing a plurality of output interconnects at premapped output interconnect positions on an output edge of said macro cell so that said output interconnects are adapted to contact input interconnects of an additional macro cell whenever premapped input interconnects of said additional macro cell are physically aligned with and connected to said premapped output interconnects of said macro cell, said premapped input interconnects of said additional macro cell located at premapped input interconnect positions that correspond to said premapped input interconnect positions of said macro cell; routing said internal signal paths from said plurality of premapped input interconnects of said macro cell to said plurality of premapped output interconnects of said macro cell so that signals applied to each of said premapped input interconnects of said macro cell are transmitted through said macro cell to said premapped output interconnects of said macro cell that are adapted to connect to said input interconnects of said additional macro cell that are located in positions that are different from said premapped input interconnects of said macro cell.