December 2021

Feature of the Month

Introducing UDM mode specification expressions

If you found MODELZEN running too exhaustive characterizations for user-defined models (UDMs), this new feature can make it significantly faster by constraining the mode bit values.

Tip of the Month

Randomizing model parameter values

Check out how to write a testbench that randomizes parameter values for each run using embedded Python (EmPy) expressions.

Primitive of the Month

sample

This primitive models a sample-and-hold circuit, sampling the input at the clock's rising edge and holding it.

XMODEL Release Updates

2021.12 Release

This release introduces the UDM mode specification expressions and adds new functions for generating random numbers from Poisson, binomial, and gamma distributions.