Primitive

INPUT or IN Primitive/Port
AHDL Syntax: in1 : INPUT;
VHDL Syntax: in1 : IN
Source: Device I/O or dedicated input pins, or higher levels in the hierarchy tree
Destination: All logic functions except BIDIR, VCC, GND

In a Block Design File (.bdf), you can use the Pin Properties dialog box to specify pin properties for this primitive, such as the pin name and default value.

NOTE

  1. Assigning an unconnected INPUT primitive to a pin number reserves the pin for future use.

  2. Only the pin assignments of the compilation focus are used during compilation.


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