August 2021

Precharge-type phase-only detector

Check out how to model a precharge-type phase-only detector (PD), which is suitable for aligning two clocks with a zero phase offset in a DLL. This PD was first published by S. Sidiropoulos, et al. in 2000.

Dumping the waveforms of selected signals only

Learn the various options available for the dump primitive or $xmodel_dumpvars() command to dump just the waveforms of specific signals or signals contained in specific instances only.

xbit_to_xreal_var

This primitive converts an xbit-type input to an xreal-type output, of which logic-1 and logic-0 levels can be varied with the level1 and level0 input signals.

2021.08 Release

This release adds many improvements and bug fixes including the improved speed of the stline primitive and the --select option for the sparam_to_tline utility to support partial selection of ports.

Latest Issues

March 2024

UVM Testbench for LDOs, Modeling a Buffer with Variable Rise/Fall Delays, and More

February 2024

XMODEL at DVCon US, Modeling D-PHY Transceivers, and More

January 2024

Modeling a Buffer with Arbitrary Rising and Falling Transition Waveforms, and More

December 2023

XMODEL at ASP-DAC 2024, Modeling Time-of-Flight Sensors, and More

November 2023

Modeling a Thermal Sensor Circuit, Measuring the Transmitter Output Resistance, and More