Use the Constant IP to tie signals up or down, and specify a constant value. The
Constant IP shows the constant value being driven by the block on the output pin. As an
example, the following constant IP shows a default value on the output pin
dout[0:0] being driven to 1.
To change the value double-click the IP. This brings the Re-customize IP dialog box as shown.
In this configuration dialog box, the width of the value to be driven is
set to 5 (binary bits) and a value of decimal
30 is being driven. After you commit to the
changes, the Constant IP shows the new values being driven on the output pin
dout[4 downto 0].
Constant values can be set as decimal, hexadecimal or binary values. See the LogiCORE IP Constant Product Brief (PB040) for more information.