[SI-LIST] : Exceptional Employment Opportunities with ATOGA Systems

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From: Dan Bostan (dbostan@ix.netcom.com)
Date: Wed Nov 01 2000 - 22:13:09 PST


Atoga Systems, a hot start up in the optical networking arena, is looking
for experienced engineers with networking and extensive SI & EMI expertise.
For inquiries, please contact

Dan Bostan
dan@atoga.com
510.687.9700/x109.
-----Original Message-----
From: owner-si-list@silab.eng.sun.com
[mailto:owner-si-list@silab.eng.sun.com]On Behalf Of
colin_meikle@mentorg.com
Sent: Wednesday, November 01, 2000 1:34 AM
To: 'Kim Helliwell'; si-list@silab.eng.sun.com
Subject: RE: [SI-LIST] : Intel's Pentium III IBIS models for the PGA370
socket

The PIII prcessors do have on die terminators (with the exception of RESET).

The datasheet on Intel's web site gives some details of the AGTL signals.

Regards,

Colin Meikle

Mentor Graphics ( UK ) Ltd
Macmillan Road
Alderstone Business Park
Livingston
West Lothian
EH54 7DF

E-mail: colin_meikle@mentor.com

Tel +44 (0)1506 412222
Mobile +44 (0)831 106277
Fax +44 (0)1506 410822

-----Original Message-----
From: Kim Helliwell [mailto:khelliwe@acuson.com]
Sent: 01 November 2000 00:15
To: si-list@silab.Eng.Sun.COM
Subject: [SI-LIST] : Intel's Pentium III IBIS models for the PGA370
socket

Has anyone had any success in using these models? I mean the ones that are
available at:

http://developer.intel.com/design/PentiumIII/devtools/fcpga_2_01.zip

In particular, I am having trouble understanding the instructions
in the documentation for measuring the buffer delays for the AGTL buffer
model.

The instructions say: "Use the Fast/Slow/Si corner model with 50 ohm
on-die Rtt."

In the first place, there is no 50 ohm model supplied (they only supply
56, 62, 68, 72, and 110 ohm Rtt models); so apparently they expect one
to create the 50-ohm model oneself in order to make the buffer delay
measurement. This is very annoying, if it's really the intention.

In the second place, it's my understanding that the actual die does not
have an internal Rtt, so why are the models supplied as if they have an
on-die Rtt?

There are other questions, but I risk losing the audience here.

Can anyone shed light on this?

Thanks in advance.

--
Kim Helliwell
Senior CAE Engineer
Acuson Corporation
Phone: 650 694 5030  FAX: 650 943 7260

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