Async Resets in Scan Insertion

[dft123]

I have design with async reset. This is async in assertion and sync in de-assertion. Also, the output of the synchronizers is ORed with a top level dftrstdisable port which behaves the same way as scan enable. This is done to avoid any reset issues during shift. In capture, the reset can toggle to acheive coverage on the synch paths.

I am using Mentor tools for insertion/atpg.

Question is:
How do i handle/define the async reset to the tool? Do I declare the async reset as clocks during scan insertion?

 

[maulin sheth]

In DFT reset is always in the clock groups. By default tool take reset in the clock group. We onl need to define the asynchronous reset during the DFT configuration.... We don't require to define sync reset in the DFT configuration. The tool automatically handle the async reset..just you have to define reset signal with its active state...No need to define as clock during insertion...