2709 - Do Lattice's IBIS models include the RLC data for each pin?
Lattice IBIS model do not include individual pin RLC. It has the worst case package RLC which will give the worst case simulation result.
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7295 - Crosslink-NX: How to use other RLC package models in an IBIS model?
To use other RLC package models in an IBIS model: 1. Open the IBIS file in a text editor. 2. Scroll down, and under the [Package] keyword, you will see the various package models available for use. 3. Using the commenting character "|", comment the ...
2008 - MachXO2:Which IBIS models should I use for the MachXO2 JTAG signal pins?
Solution: For the JTAG input pins, use the LVCMOS input models with bank 0 VCCIO and select the model that has: TCK: bus keeper = NONE TDI: bus keeper = pull up TMS: bus keeper = pull up For the JTAG output pin (TDO), use LVCMOS output type, bank 0 ...
2009 - MachXO:Which IBIS models should I use for the MachXO JTAG signal pins?
Solution: For the JTAG input pins, use the LVCMOS input models, input threshold voltage is referenced using the VCCAUX value, and select the model that has: TCK: bus keeper = NONE TDI: bus keeper = pull up TMS: bus keeper = pull up For the JTAG ...
1911 - How can I generate a much smaller IBIS model file that only includes the IO types defined in my project?
Situation: An IBIS model file from the Lattice web site includes all the programmable IO types a device can be set to, but the IBIS model file is very large and for some simulators, can slow the simulation setup time substantially. It is desired to ...
2365 - What kind of models can I use to simulate Lattice IO packages parasitics?
Solution:Lattice provides both IBIS and HSPICE models to evaluate IO parasitics on Lattice devices. •IBIS models: ◦You can find IBIS models for most Lattice packages by visiting the device family web page, and clicking on the IBIS Models link at the ...