RE: PCI and IBIS

Syed,
        I have seen model providers pick one of the Vmeas data points
(rising edge) then insert as a comment the falling edge. It is left
up the the user to figure out what to do next.

Some tools, SQ for instance allows you to insert the resultant time
point into a translated model. With a little manual intervention this
PCI spec problem is handled. A better approach would change IBIS
to accept rising and fallig data. Othewise change the PCI spec :-)
Another capability I would suggest adding to IBIS, is the capability
for Fast and Slow Vmeas. This will be useful for HSTL.

Regards,
Bob

Bob HAller
Cereva Networks
  

-----Original Message-----
From: Syed Huq [mailto:shuq@cisco.com]
Sent: Friday, February 02, 2001 12:32 AM
To: ibis-users@eda.org
Subject: PCI and IBIS

IBISgurus:

The PCI spec mentions of multiple Vmeas data points based on Rising edge
or Falling edge. Since IBIS has only one Vmeas for any Output/I_O etc, how
does the model provider spec the PCI Vmeas values ?

Regards,
Syed
Cisco Systems, Inc
 
Received on Fri Feb 2 05:25:03 2001