A.3. Ethernet interface

The RJ45 Ethernet connector J44 is shown in Figure A.3.

LEDA (green) and LEDB (yellow) are connected to the LAN9118 controller. The function of the LEDs is determined by registers in the controller. Typical usage would be to monitor transmit activity and packet detection.

Figure A.3. Ethernet connector J44

Ethernet connector J44

The signals on the Ethernet cable are listed in Table A.3.

Table A.3. Ethernet signals

Pin (RJ45)Signal
1Transmit +
2Transmit -
3Receive +
5Transmit common
6Receive -
7Receive common

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