Vincent Girard
Newbie level 6
scan atpg dft
Hi guys,
I have some questions concerning ATPG process with TetramaX,
As you know during ATPG process the tool try to generate patterns using all
available scan cells in the design, but let's focus on what is happening during capture :
If the data that should be captured by a scan flop comes from an other scan flop,
which is working with another scan clock with potential skew between the two scan flops
then this data is considered as X by the tool preventing any timing issue that would make the pattern
fail during simulation.
Is that correct ? Then if so, how is the combo logic that need to be observed thru this scan flop tested.
thanks
Hi guys,
I have some questions concerning ATPG process with TetramaX,
As you know during ATPG process the tool try to generate patterns using all
available scan cells in the design, but let's focus on what is happening during capture :
If the data that should be captured by a scan flop comes from an other scan flop,
which is working with another scan clock with potential skew between the two scan flops
then this data is considered as X by the tool preventing any timing issue that would make the pattern
fail during simulation.
Is that correct ? Then if so, how is the combo logic that need to be observed thru this scan flop tested.
thanks