Unsupported Verilog Gate Level Primitives - Unsupported Verilog Gate Level Primitives - 2026.1 English - UG901

Vivado Design Suite User Guide: Synthesis (UG901)

Document ID
UG901
Release Date
2026-07-08
Version
2026.1 English

The table lists the gate-level primitives not supported in Vivado synthesis.

Table 1. Unsupported Primitives
Primitive Status
pulldown and pullup Unsupported
drive strength and delay Ignored
Arrays of primitives Unsupported