- Signal table— Allows you to view the
properties of signals in the component's top-level module, assign
the signals to one or more interfaces, and define the signal type
as follows:
-
Name—
Displays the name of the top-level signal specified in the
HDL Files tab, or any new
signal you may specify.
- Interface— Selects a port name to
apply to the signal.
- Signal Type— Selects signal types
for ports. You must assign each signal to a port and specify its
signal type. Setting the signal type as export in the Signal Type column indicates that the signal connects
outside the immediate module and is available for use in other Qsys
systems or on the PCB..
Note: Incorrect signal type settings cause the Signal Type setting
to appear in red. Incorrect settings may include signal types that do not exist for port
types, signal widths that do not match legal widths for the signal type, or signal
widths that do not match a legal direction for a signal type.
- Width— Specifies width
settings to match HDL file definitions. If you did not specify an
HDL file, then you must specify a width setting for each
signal.
- Direction—
Specifies direction settings to
match HDL file definitions. If you did not specify an HDL file, you
must specify a direction setting for each signal. The setting in
the Direction column is
from the perspective of the Qsys component.
- Add Signal— Allows you to add
signals, if you did not specify an HDL file in the HDL Files
tab.
- Remove Signal— Allows you to remove
signals, if you did not specify an HDL file in the HDL Files
tab.