7.1i XST - How do I pass the STEPPING attribute through HDL in XST?

AR#	14359	Search For Another Answer
Topic	XST General
Last Updated	03/18/2006
Status	Active

Description

Keywords: multiplier, config, Virtex, Virtex-II

How do I pass the STEPPING attribute that is available to access the enhanced multiplier speed?

Solution

VHDL Example:

entity multiply is
port (<port_list>);

attribute STEPPING : string;
attribute STEPPING of multiply : entity is "1";
end multiply;
:
:


Verilog Example:

module multiply (<port_list>); //synthesis attribute STEPPING of multiply is 1
:
:
endmodule


For more information about the STEPPING attribute, see (Xilinx Answer 14339).