David, I am not sure about the keyword support, but there was a presentation recently talking about the problems with the scoping of these keywords. http://www.eda.org/ibis/summits/nov11c/wang.pdf see slide 13 True, the presentation dealt with BIRD 95/98 related modeling challenges, but it seems that the same problem would also appear with differential buffer. If it is not terribly urgent, I would suggest to wait for the new analog modeling proposals which would probably give a better way of making true differential buffer models. Thanks, Arpad ======================================================== From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of David Banas Sent: Tuesday, March 13, 2012 7:30 PM To: 'IBIS-ATM' Subject: [ibis-macro] Series modeling support sufficient yet? Hi experts, In your opinion, is there sufficient EDA tool support for Model_type=Series, [Series Pin Mapping], [R Series], [Series Current], etc. to implement the differential modeling techniques given in Section 4 of the Cookbook? Thanks, David Banas Sr. Member Technical Staff Altera<http://www.altera.com/> +1-408-544-7667 - desk Did you know Altera offers over 150 free online technical training courses<http://www.altera.com/servlets/searchcourse?coursetype=Online&WT.mc_id=t9_ot_mi_mi_tx_a_311>? Take one today! ________________________________ Confidentiality Notice. This message may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient, you are hereby notified that any use, disclosure, dissemination, distribution, or copying of this message, or any attachments, is strictly prohibited. If you have received this message in error, please advise the sender by reply e-mail, and delete the message and any attachments. Thank you.