![]() Referring to the Hierarchy Expansion flowchart in the figure Netlist Hierarchy Expansion, when an instance of hierarchy_bottom is encountered, the following occurs: Switch View List with schematic_ideal taking priority The following figure shows how the setup options have been changed to designate that schematic_ideal takes priority. The cadence cell hierarchy_top placed in ADS The switch view list is used to tell the netlister which one you want to use. Because there are two alternate schematics, it becomes necessary to tell the netlister which one to use when you netlist the design hierarchy_top. This cell is in turn placed in the ADS example project design hierarchyTest, with the schematic view chosen as the Cadence view (see the following figure). The schematic view for the example cell hierarchy_top Two instances of the cell hierarchy_bottom have been placed in the schematic hierarchy_top (see the following figure) in the examples. Īlternate schematic view schematic_parasitics for the example cell hierarchy_bottom. In this example, the cell hierarchy_bottom has two alternate schematic views, schematic_ideal and schematic_parasitics (see the following two figures).Īlternate schematic view schematic_ideal for the example cell hierarchy_bottom. For an example of this, refer to the design hierarchy_bottom in the library examples that is provided with the Dynamic Link installation. A stop view is implied to have no hierarchy. The stop view is used to designate whether a view in the switch view list should be traversed for hierarchy. The switch view list is used to enable you to designate the priority of each view for hierarchical netlisting. Typically views are schematic, symbol, layout, extracted, etc. Setting a Switch View List and a Stop View List.Įach instance in a hierarchy has a master cell, that contains a number of views for that cell. The Setup Options form enables you to designate a switch view list, and a stop view list. In the Cadence schematic window, choose the DynamicLink > Setup Options menu item to access the Setup Options form. The flowchart shown in the following figure describes the general process used by the RFIC Dynamic Link netlister to move through and expand the hierarchy in Dynamic Link. For more detailed information on expanding hierarchy in the Cadence environment, refer to the section on How the Netlister Expands Hierarchy in your Cadence documentation.Įxpanding Hierarchy with the Dynamic Link Netlister For more detailed information on using the Cadence Hierarchy Editor tool exclusively, refer to your Virtuoso Analog Circuit Design Environment User Guide. The information provided in this section refers to using the Cadence Hierarchy Editor tool with the RFIC Dynamic Link and Advanced Design System.
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