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Solution ID: rd06172008_116
Last Modified: Jul 29, 2008
Product Category: Design Software
Product Area: Simulation/Verification
Product Sub-area: Quartus II Simulator
Problem
Do Altera simulation models support the programmable internal weak pull up resistor?
Solution
No, Altera® device functional and timing simulation models do not have the programmable internal weak pull up option.
To simulate the internal weak pull up option, you can set this option manually in the Quartus® II software by setting the weak pull up in the vector waveform file (VWF).
To confirm the weak pull up setting, you can check in the Compilation Report of Quartus II software.
There are Input Pins, Output Pins, and Bidir Pins reports in Fitter- Resource Section.
You can check Global setting, Output Register setting, Open Drain setting, Bus Hold setting, and Weak Pull-up setting for each pin.
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