Pre-Store capability on PXI-6551?

[scrib]

Hi,
 
Is there a pre-store capability on the PXI-6551? We are using the module to replace a logic analyzer and we need to be able to acquire and perform a hardware compare of a set of samples before the trigger occurs.
 
Thanks in advance,
Joe

[scrib]

Jared, Chris:
Thanks for the replies.
The reason we need this capability is because the trigger edge that we're using signifies a "rollover" event where we'd like to make sure the UUT is generating data properly through this "rollover" event. This trigger occurs at 1.5 second intervals and we're acquiring data at 10MHz.
The logic analyzer does not support hardware compare which is why we converted to the PXI-6551 -- to decrease our test time.
Regards,
Joe