Command Dictionary Add Tied Signals
FastScan and FlexTest Reference Manual, V8.6_4 2-117
Add Tied Signals
Tools Supported: FastScan and FlexTest
Scope: Setup mode
Usage
ADD TIed Signals {0 | 1 | X | Z}floating_object_name... [-Pin]
Description
Adds a value to floating signals or pins.
The Add Tied Signals command assigns a specific value to not-clearly-defined
floating signals or pins. If there are floating signals or pins in the design, a
warning appears when you leave the Setup mode. If you do not assign a specific
value, the tool ties the signal or pin values to the default value. You can change
the default tied value by using the Setup Tied Signals command.
When you add tied signals or pins, the tool places them into the user class. When
the netlist ties signals or pins to a value, the tool places them into the system class.
Arguments
•0
A literal that ties the floating nets or pins to logic 0 (low to ground).
•1
A literal that ties the floating nets or pins to logic 1 (high to voltage source).
•X
A literal that ties the floating nets or pins to unknown.
•Z
A literal that ties the floating nets or pins to high-impedance
Note
The tool will not tie a signal that is connected to I/O pins. This
causes a problem if you are considering UDD as an I/O pin.