Achronix Speedster22i User Macro Guide - Manual (Page 204)

Special Functions ACX_SERIALIZE (Speedster22iHP Only)
Speedster Macro Cell Library www.achronix.com PAGE 187
library speedster22i;
use speedster22i.components.all;
------------- DONE ACHRONIX LIBRARY ---------
-- Component Instantiation
ACX_SERIALIZE_instance_name : ACX_SERIALIZE
generic map (input_width => 4)
port map (q => user_q,
d => user_d,
clk => user_clk);