From: Dan Bostan (email@example.com)
Date: Wed Nov 01 2000 - 22:13:09 PST
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For inquiries, please contact
[mailto:firstname.lastname@example.org]On Behalf Of
Sent: Wednesday, November 01, 2000 1:34 AM
To: 'Kim Helliwell'; email@example.com
Subject: RE: [SI-LIST] : Intel's Pentium III IBIS models for the PGA370
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.
Mentor Graphics ( UK ) Ltd
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From: Kim Helliwell [mailto:firstname.lastname@example.org]
Sent: 01 November 2000 00:15
Subject: [SI-LIST] : Intel's Pentium III IBIS models for the PGA370
Has anyone had any success in using these models? I mean the ones that are
In particular, I am having trouble understanding the instructions
in the documentation for measuring the buffer delays for the AGTL buffer
The instructions say: "Use the Fast/Slow/Si corner model with 50 ohm
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
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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