J6 connector pinout in SpiNN-3

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Vaggelis Ntouros

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Mar 2, 2022, 2:15:11 PM3/2/22
to SpiNNaker Users Group
Hello all, 

looking at app-note1 and the rest documentation I could not find the pinout of J6 connector (for robotic applications). Could anyone provide any link or document with this information?

Thank you

Andrew Rowley

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Mar 3, 2022, 5:29:13 AM3/3/22
to Vaggelis Ntouros, SpiNNaker Users Group

Hi,

 

Here is some information:

 

The connector J6 is pinned out as below –

VCC3V3   2   1   nc

VCC3V3   4   3   nc

VCC3V3   6   5   nc

VCC3V3   8   7   nc

VCC5V0  10   9   TXP

VCC5V0  12  11   TXN

VCC5V0  14  13   nc

nc      16  15   nc

VSS     18  17   RXP

VSS     20  19   RXN

 

nc = not connected. Pin 1 is indicated by the 45 degree chamfer on the

silkscreen of J6. Note the 'odd' layout of this connector. Pin 1 is

at the top RHS, not the top LHS as is more usual.

 

One thing to perhaps note is that the signals TXP,TXN,RXP,RXN are straight from

the Ethernet PHY and not via any magnetics. These are not the same signals that

appear on the output of the Ethernet RJ45 connector, J9 which go through magnetics

contained within the RJ45.

 

Let us know if you have further questions.

 

Andrew :)

 

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