Global Set and Reset and Global 3-State Signals in Verilog - 2021.2 English

Vivado Design Suite User Guide: Logic Simulation (UG900)

Document ID
UG900
Release Date
2021-10-22
Version
2021.2 English

The GSR and GTS signals are defined in the <Vivado_Install_Dir>/data/verilog/src/glbl.v module.

In most cases, GSR and GTS need not be defined in the test bench.

The glbl.v file declares the global GSR and GTS signals and automatically pulses GSR for 100 ns.