Re: [10GBT] Functional block diagram
Brett,
Thanks for the feedback. I will take a closer
look.
Sanjay
cell (650) 704-7686
office (408)
653-2235
Sanjay,
I'm
wondering whether the 1000BASE-T diagram is the right starting point.
Perhaps We should start with the clause 48 or 49 diagram and build on
that.
Otherwise, your diagram need the following revisions:
-
XGMII interface should be: TX_CLK, TXD<31:0>, TXC<3:0> and RX_CLK,
RXD<31:0>,RXC<3:0>
-
remove: COL, TX_EN, TX_ER, RX_DV, RX_ER, CRS (actually the entire carrier sense
block should be removed)
Brett
Looking through
the 1000BASE-T standards (802.3 clause 40), I see a figure that is quite
central to the descriptions and the subclauses. This is Figure 40-3. The
blocks identified in this figure may not reflect any actual implementation but
form the basis of organizing a lot of the pieces of the standard. The figure
also identifies the interfaces and some of the service
primitives
As we start
drafting 802.3an, it will be helpful to come up with the equivalent figure for
10GBASE-T. Those of you who have active proposals on the table should look at
how you can modify this figure to reflect your proposal. Minimal modifications
will make it more likely that we can reach a consensus on the final figure.
Others who went through standardizing and building 1000BASE-T parts - feel
free to suggest changes based on your learnings.
At the minimum,
the GMII interface gets replaced with and XGMII interface. For those who do
not have access to the 1000BASE-T standard, I am attaching the figure in .rtf
format that should be readable by Microsoft Word
Translating from
Frame to Word may have messed up some text so refer to the original in 802.3
clause 40 if you have any doubts.
I also took the
first step and changed GMII to XGMII in the text labeling the interface on the
left.
Thanks,
Sanjay Kasturia
Editor-in-chief, 802.3an
cell (650)
704-7686
office (408)
653-2235
fax (408)
844-8187
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