[SI-LIST] Re: StatEye
- From: "chen, jinhua" <chen_jinhua@xxxxxxx>
- To: "'gedlund@xxxxxxxxxx'" <gedlund@xxxxxxxxxx>,si-list@xxxxxxxxxxxxx, Raymond.Anderson@xxxxxxx
- Date: Thu, 13 May 2004 11:44:43 -0400
As my understanding, StatEye use S-parameter to generate 2-dimentional
bathtub curve. In conventional way, such as MJSQ, it use the statistical
jitter data to create one-dimentional (time) bathtub curve, and use it to
predict the bit-errors. But in reality, if eye closed too much in voltage
dimention, it also can cause bit errors. So, two-dimentional bathtub curve,
time and voltage, is more accurate to predict the bit errors.
Correct me if I am wrong.
Regards!
Jinhua
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Gregory R Edlund
Sent: Thursday, May 13, 2004 8:43 AM
To: si-list@xxxxxxxxxxxxx; Raymond.Anderson@xxxxxxx
Subject: [SI-LIST] Re: StatEye
Ray,
I heard a paper on StatEye by Sanders, Resso, and D'Ambrosia at DesignCon
East last month, and I was intrigued by the idea. In particular, the
paper seemed to be making a theoretical connection between bit error rate
and eye opening, which I've never seen before. Since I'm pretty new to
the serial link world I could use a very high-level explanation of the
technique. It seems to depend on replacing the familiar SI phenomena
(crosstalk, ISI, PDN noise) with statistical entities and then finding the
response of a complete link (transmitter+interconnect+receiver) to the
convolution of these individual statistical entities. Did I get this
right?
Is there someone out there on the OIF that would care to explain the
"general idea" in a couple of paragraphs?
Thanks in advance.
Greg Edlund
Senior Engineer
Signal Integrity
IBM Engineering and Technology Services
3605 Hwy. 52 N, Dept. HDC
Rochester, MN 55901
gedlund@xxxxxxxxxx
Msg: #5 in digest
Date: Wed, 12 May 2004 12:54:35 -0700
From: Raymond Anderson <Raymond.Anderson@xxxxxxx>
Subject: [SI-LIST] StatEye
For those who may not be aware, a tool called StatEye has been developed
by the the OIF (Optical Internetworking Forum) PhyLayer working group
and is available as open source code.
StatEye uses statistical methods to derive an eye diagram and jitter
metrics for a channel characterized by s-parameters.
StatEye runs under Matlab 6.5.1
StatEye is a leading standards development tool, used widely by a
standards groups working with high speed interfaces.
From their web site:
"StatEye is a non-profit open source forum for the development and
validation of physical interface channels and the signalling technology.
Our mission is to proliferate the use of a standard method for the
analysis of interface channels, that can be used by system and chip
developer alike."
The StatEye web site: http://www.stateye.org/ hosts the downloadble
code, documentation, papers and presentations and a forum dedicated to
StatEye topics.
-Ray Anderson
Sun Microsystems Inc.
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