[SI-LIST] Re: IBIS & the Simulator

John,

I have to disagree here.  While I agree that a simulator should *nominally*
be able to simulate the buffer along with the package parasitics (i.e.
analyze the packaged part) - it's not clear to me that the IBIS standard has
any opinion about whether a simulator should be able to model a buffer on
its own.

We find the ability to model the buffer without the associated package
parasitics quite useful in certain circumstances.  For instance, when
correlating an IBIS buffer against its Spice counterpart, we usually model
the buffer without the associated package load.  The correlation (or lack or
it) becomes clearer and some of the associated problems become easier to
identify and resolve.

Todd.

Todd Westerhoff
High Speed Design Specialist
Cisco Systems
1414 Massachusetts Ave - Boxboro, MA - 01719
email:twesterh@xxxxxxxxx
ph: 978-936-2149
============================================

"When did the choices get so hard, with so much more at stake?
 Life gets mighty precious when there's less of it to waste"

- Bonnie Raitt, "Nick of Time"


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Angulo, John
Sent: Tuesday, January 28, 2003 5:34 PM
To: 'siwave2000@xxxxxxxxx'; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: IBIS & the Simulator



Dan,

Hyperlynx always simulates R_pkg, L_pkg, C_pkg and C_comp for all device
pins regardless of buffer direction.  This is required by the IBIS standard,
and should be true of all SI tools.

Best regards,

John Angulo
Hyperlynx Products
Mentor Graphics Corp.
john_angulo@xxxxxxxxxx
425-869-2320



-----Original Message-----
From: SiWave [mailto:siwave2000@xxxxxxxxx]
Sent: Monday, January 27, 2003 1:37 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] IBIS & the Simulator



Does anybody know that the IBIS based simulator, Hyperlynx, for example,
will only take R_pkg, L_pkg, C_pkg and C_comp into consideration for
RECEIVER or will consider more?

Thanks

Dan



---------------------------------
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu


------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages 
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

Other related posts: