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A-16 Copyright © 2003-2007 ARM Limited. All rights reserved. ARM DUI 0224F
A.11 Ethernet interface
The RJ45 Ethernet connector J5 is shown in Figure A-13.
LEDA (green) and LEDB (yellow) are connected to the LAN91C111 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-13 Ethernet connector J5
The signals on the Ethernet cable are shown in Table A-9.
LEDB
Pin 1
LEDA
Table A-9 Ethernet signals
Pin Signal
1 Transmit +
2 Transmit -
3 Receive +
4NC
5NC
6 Receive -
7NC
8NC