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Microchip Inte kategoriserad VSC8221

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VSC8221

User Guide

VSC8221 Evaluation Board

VPPD-03471 VSC8221 User Guide Revision 1.0

Contents

1 Revision History ............................................................................................................................. 1

1.1 Revision 1.0 ........................................................................................................................................

2 Introduction ................................................................................................................................... 2

3 General Description ....................................................................................................................... 3

3.1 Hardware Features .............................................................................................................................

3.1.1 Power Connections ................................................................................................................................. 3

3.1.2 Copper Port RJ45 Connections ................................................................................................................ 3

3.1.3 SFP or SMA SGMII MAC Interface ........................................................................................................... 3

3.1.4 Switches .................................................................................................................................................. 3

3.1.5 Taitien 25 MHz Crystal ............................................................................................................................ 3

3.1.6 External RefClk Option ............................................................................................................................ 4

3.1.7 Silabs Microcontroller ............................................................................................................................. 4

3.1.8 EEPROM Option ...................................................................................................................................... 4

3.1.9 CMODE Pins ............................................................................................................................................. 4

3.1.10 CLOCKOUT SMA ..................................................................................................................................... 4

3.2 Software Requirements ...................................................................................................................... 4

4 Quick Start ..................................................................................................................................... 5

4.1 Board Configuration ...........................................................................................................................

4.1.1 Clock and Reset ....................................................................................................................................... 5

4.1.2 Power Up ................................................................................................................................................. 5

4.2 GUI and Driver Installation ................................................................................................................. 5

4.3 Using the GUI ......................................................................................................................................

4.4 Test Cases ...........................................................................................................................................

4.4.1 CAT5 to 802.3z Serdes with Clause 37 AutoNeg Detection ..................................................................... 7

4.4.2 CAT5 to SGMII with Modified Clause 37 AutoNeg Disabled .................................................................... 8

4.5 Useful Registers ..................................................................................................................................

4.5.1 Ethernet Packet Generator ..................................................................................................................... 8

4.5.2 Far-End Loopback .................................................................................................................................... 8

4.5.3 Near-End Loopback ................................................................................................................................. 8