FYI: This is what how delay was added to a channel in the COM code.
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From: Upen Reddy Kareti (ureddy) <00000d999961d690-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Thursday, June 20, 2024 1:02 PM
To: STDS-802-3-B400G-ELEC@xxxxxxxxxxxxxxxxx
Subject: [802.3_B400G_ELEC] [802.3dj] 20 June electrical ad hoc - response to request for more details
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Hi All,
Two requests were made during my presentation today– here are my responses
1> provide a link to my skew presentation – the following link is added to today’s presentation.
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Identifying basic skew profiles in freq. domain slide 13 of
kareti_3dj_02_2401.pdf – actual step by step procedure how to add skew is not shared
2> Max tap values for under 40 dB insertion Loss – separate stats for the ones passing COM of 3 dB and the ones not passing of 3 dB.
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note the following data is not as relevant once we start using COM code 4.6.3 as fixes are provided for tap location reporting issue.
- Also, when we configure with TX FFE and g_DC >0 setups.
For a case with post cursors of 8 fixed 3 banks (of 4 taps in each bank ) RX FFE span up to 100 UI and Package class B for both Transmitter and
Receiver:
Channels < 40 dB and passing 3dB COM.
Channels < 40 dB and failing 3dB COM.
Regards
Upen
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