Microchip VSC8541ET Käyttöohje

Microchip Ei luokiteltu VSC8541ET

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ENT-AN1224

User Guide

VSC8541 Evaluation Board

December 2018

VSC8541 Evaluation Board

VPPD-04410 ENT-AN1224 User Guide Revision 1.0

Contents

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

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

2 Overview ........................................................................................................................................ 2

3 Key Features .................................................................................................................................. 4

3.1 Copper Port RJ45 Connections ........................................................................................................... 4

3.2 MAC Interface Connector ................................................................................................................... 4

3.2.1 RGMII Interface ....................................................................................................................................... 4

3.2.2 RMII Interface .......................................................................................................................................... 4

3.2.3 MII/GMII Interface (VSC8541 only) ......................................................................................................... 4

3.3 Reference Clock ..................................................................................................................................

3.4 Recovered Clock and Clockout ........................................................................................................... 5

3.5 Bootstrapping Option .........................................................................................................................

3.6 LEDs ....................................................................................................................................................

3.7 MDINT, Fast Link Fail ..........................................................................................................................

3.8 Software Interface Microcontroller .................................................................................................... 6

3.9 Power Supply Options ........................................................................................................................

3.9.1 Single 5.0 V Input for DUT and Other Components ................................................................................ 6

3.9.2 DUT Power Rails Isolated from non-DUT Power ..................................................................................... 6

3.9.3 External 5.0 V DC Supply ......................................................................................................................... 6

4 Quick Start ..................................................................................................................................... 7

4.1 Connecting the Power Supply ............................................................................................................ 7

4.2 Installing the PC Software ..................................................................................................................

4.3 Connecting the Board to the PC ......................................................................................................... 7

4.4 Board Initialization .............................................................................................................................

4.4.1 MAC Interface Reconfiguration ............................................................................................................... 8

4.4.2 Copper Media Interface (Auto-negotiation Enabled) .............................................................................. 9

4.5 Useful Test Features ...........................................................................................................................

4.5.1 Ethernet Packet Generator ..................................................................................................................... 9

4.5.2 Copper PHY Error Counters ..................................................................................................................... 9

4.5.3 Near-End Loopback ................................................................................................................................. 9

4.5.4 Far-End Loopback .................................................................................................................................. 10

4.5.5 Transmitter Test Mode .......................................................................................................................... 10