Command Dictionary Set IO Mask
FastScan and FlexTest Reference Manual, V8.6_4 2-517
Set IO Mask
Tools Supported: FastScan
Scope: All modes
Usage
SET IO Mask [OFf | ON]
Description
Modifies the behavior of IO pins so that their expected values will always be X
during test cycles in which the primary input portion of the IO pin is being forced.
Typically, when FastScan forces stimulus on an IO pin, it will expect to measure
the same value on the corresponding PO. This command allows you to modify this
behavior in cases where this is undesirable.
Arguments
•OFf
An optional literal that disables the ability to mask the I/O pin output value.
This is the default.
•ON
An optional literal that enables the ability to mask the I/O pin output value.