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4 Design Guide
Contents
9 AUI 10BASE2 Network Connection............................................................................................17
10 21143 External Component Connections...................................................................................20
11 LED Time-Stretcher Circuit......................................................................................................... 22
Tables
1 Signal gep<0>/aui_bnc Description..............................................................................................5
2 AUI Signals................................................................................................................................... 7
3 Twisted-Pair Signals.....................................................................................................................7
4 MII Signals....................................................................................................................................8
5 SYM Signals .................................................................................................................................8
6 Internal vs. External Design Features .......................................................................................13
7 MII/SYM Pinout........................................................................................................................... 14
8 10BASE-T Media-Specific Components.....................................................................................18
9 10BASE2 and 10BASE5 Media-Specific Components .............................................................. 18
10 Pin Requirements When Not Using the JTAG Port ....................................................................19
11 Current Reference and Capacitor Inputs....................................................................................19
12 Crystal Specifications ................................................................................................................. 20
Revision History
Date Revision Description
July 2002 001 First release.