An IBIS buffer imported as a single component has a rectangular schematic symbol with terminals for the imported pins in the IBIS model. When individual pins have been selected, only those pins are imported. When the IBIS component definition does not include a [Package Model], the [Package Model] option is deactivated, and the power and ground pins are not available for import. Then you can connect the pins to the individual signals in the schematic. The component expects power to be supplied as specified by the power parameter on each pin. Any [Pin Mapping] in the component definition is ignored. Nexxim uses the [Pin] or [Package] data (selected by pkg_selector property) to instantiate RLC parasitics between the die-side and the board-side nodes.
When you have identified the IBIS library file in the Import Components window, the Import IBIS window appears.
To import a single IBIS component without a [Package Model] with selected component signal pins:
- Click the Create single component check box at the top of the Pin Import tab.
- Select the chosen individual pins. Nexxim imports only the selected signal pins.
- Click OK to create the component and
add it to the Definitions > Components listing in the Project
Manager window.
(See Power Nodes in the IBIS File Import Technical Notesfor details on the methods for supplying power to imported IBIS components. See Package RLC Parasitics in the technical notes for details on support for RLC parasitics in IBIS components. The next step is to place the IBIS components in the schematic.