#1

RX+

Output

Ethernet port, positive line of the differential input signal pair

#2

RX-

Output

Ethernet port, negative line of the differential input signal pair

#3

AVCC

Input

"Clean" 3.3V power output for magnetics circuitry

#4

TX+

Input

Ethernet port, positive line of the differential output signal pair

#5

TX-

Input

Ethernet port, negative line of the differential output signal pair

#6

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<unused>

#7

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<unused>

#1

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<unused>

#2

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<unused>

#3

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<unused>

#4

GND

Ground