vhl in SAS3_EYEOPENING
Graeme Boyd
Graeme.Boyd at pmcs.com
Sun Oct 20 13:02:59 PDT 2013
* From the T10 Reflector (t10 at t10.org), posted by:
* Graeme Boyd <Graeme.Boyd at pmcs.com>
*
The definition of Vhl from sas3r05g is "the peak-to-peak voltage measurement
in the interval t1 to t1+80T", which I originally thought was the same thing
as "Maximal Peak Low-frequency Amplitude (K0)" as reported by the script.
However the values for Vhl(k+1)-Vhl(k) in table 45 vary between the 3 values
(-20 to +20; -40 to -10; +40 to +10) - only the first makes any sense based
on Vhl being the same thing as K0.
Graeme
________________________________________
From: owner-t10 at t10.org [owner-t10 at t10.org] on behalf of Remby Taas
[rembyt at marvell.com]
Sent: October-17-13 3:04 PM
To: t10 at t10.org
Subject: vhl in SAS3_EYEOPENING
* From the T10 Reflector (t10 at t10.org), posted by:
* Remby Taas <rembyt at marvell.com>
*
I'm doing TX-char sim with 3x waveforms(incl. no-eq ref), and I get the
following results...
TX_FFE_diff =
0.1875 -0.2940 -0.1066
-31.7138 -33.1855 2.0598
K0 =
0.3702
0.3703
0.3699
V1V2V3_diff =
0.0997 0.0208 -0.1181
-25.1636 -23.6397 -0.1779
How/Where do I calculate/get the equivalent VHL?
The given/resulting V1V2V3 are the SAS3's v1, v2, v3 deltas, but the vhl is
not given for each case.
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