公开(公告)号：US06883156B1

公开(公告)日：2005-04-19

申请号：US10159818

申请日：2002-05-31

申请人： Alex Khainson ,  Donald C. Ramsey, Jr. ,  Lew Chua-Eoan ,  Era K. Nangia

发明人： Alex Khainson ,  Donald C. Ramsey, Jr. ,  Lew Chua-Eoan ,  Era K. Nangia

IPC分类号： G06F17/50

CPC分类号： G06F17/5077 ,  G06F17/5072

摘要： A method of designing a circuit includes annotating relative positions of instantiated hierarchical macro cells, which include two or more instantiated standard cells. The relative positions of individual instantiated standard cells may also be annotated. Relative positions of instantiated hierarchical macro cells and individual instantiated standard cells may be altered to form a more compact standard cell configuration. Pin positions may also be annotated by relative position. Relative pin positions may be altered to promote dense signal line routing within the standard cell design. The relative positions of the instantiated hierarchical macro cells and individual instantiated standard cells are converted to absolute grid position locations to form a grid assigned circuit. The grid assigned circuit is then routed.

摘要翻译： 设计电路的方法包括注释实例化的分层宏小区的相对位置，其包括两个或多个实例化的标准小区。 单个实例化标准单元的相对位置也可以被注释。 可以改变实例化的分级宏小区和各个实例化的标准小区的相对位置以形成更紧凑的标准小区配置。 针位置也可以由相对位置注释。 可以改变相对引脚位置以促进标准单元设计内的密集信号线路由。 实例化的分级宏小区和单独实例化的标准小区的相对位置被转换为绝对网格位置位置，以形成网格分配电路。 然后路由网格分配电路。