FastScan and FlexTest Reference Manual, V8.6_4
2-444
Set Capture Handling Command Dictionary
Set Capture Handling
Tools Supported: FastScan
Scope: All modes
Prerequisites: You can use this command only after FastScan flattens the design to
the simulation model, which happens when you first attempt to exit Setup
mode or when you issue the Flatten Model command.
Usage
SET CApture Handling {-Ls {Old | New | X} | -Te {Old | New | X}} [-Atpg |
-NOAtpg]
Description
Specifies how FastScan globally handles the data capture of state elements that
have C3 and C4 rule violations.
The Set Capture Handling command gives you some ability to globally change
how FastScan simulates data capture in the presence of C3 and C4 clock rules
violations. C3 and C4 clock rules checks ensure that a clock line cannot capture
data affected by the clock, and that any data the clock does capture does not affect
the clock line itself. FastScan does not normally allow C3 or C4 data capturing
violations during simulation.
For information on the C3 and C4 rules, refer to the “Clock Rules” section in the
Design-for-Test: Common Resources Manual.
You can use this command to set the global data capture behavior for level
sensitive (-Ls) or trailing edge (-Te) devices. For each device type you can specify
for FastScan to simulate old, new, or X data at the source points. You can also
specify whether or not FastScan should simulate with ATPG analysis.You can
override the global data capture handling for individual state elements by using
the Add Capture Handling command.
Arguments
•-Ls Old | New | X
A switch and literal pair that specifies how you want FastScan to handle the
data capturing of level sensitive state elements. The literal choices are as
follows: