March 2025

Technical Paper

Modeling and Simulation of Silicon Photonics Systems in SystemVerilog/XMODEL

This ASP-DAC 2025 paper explains how XMODEL's event-driven simulation can be extended to silicon photonic systems. Learn more

Model of the Month

Measuring the I-V characteristics of transistors

Can you build an XMODEL testbench measuring the Ids-Vds or Ids-Vgs characteristic curves of a transistor? Learn more

Tip of the Month

Suppressing 'X' and 'Z' values in digital-type inputs

The latest XMODEL release introduced 'valueX' and 'valueZ' parameters to enable customized handling of 'X' and 'Z' values of digital-type inputs. Learn more

Primitive of the Month

buf_xbit

The 'buf_xbit' primitive can be used to add inertial delay, set an initial value, or suppress 'X' and 'Z' values in digital inputs. Learn more

Latest Issues

March 2026

EQCHECK, Adaptive Decision-Feedback Equalizer, and More

February 2026

XMODEL at DVCon US, Introducing EQCHECK, and More

January 2026

Generating Random Step Sequences for Stress-Testing, Measuring Single-Bit Responses, and More

December 2025

Season's Greetings, Checking a Clocked Comparator's Correct Output, and More

November 2025

Checking the Settling of an Analog Signal, Handling Inherited Nets with Legacy SPICE Netlisters, and More