Controlling Enable/Reset Extraction with Synthesis Attributes - 2021.2 English

Versal ACAP Hardware, IP, and Platform Development Methodology Guide (UG1387)

Document ID
UG1387
Release Date
2021-11-19
Version
2021.2 English

You can force control set mapping by applying the DIRECT_RESET / DIRECT_ENABLE / EXTRACT_RESET / EXTRACT_ENABLE attributes as needed to handle the mapping of control sets for a given structure.

When the design includes a synchronous reset/enable, synthesis creates a logic cone mapped through the CE/R/S pins when the load is equal to or above the threshold set by the -control_set_opt_threshold synthesis switch, or creates a logic cone that maps through the D pin if below the threshold. The default threshold for Versal ACAP is 2.