VSC8221 Evaluation Board
VPPD-03471 VSC8221 User Guide Revision 1.0
Contents
1 Revision History ............................................................................................................................. 1
1.1 Revision 1.0 ........................................................................................................................................ 1
2 Introduction ................................................................................................................................... 2
3 General Description ....................................................................................................................... 3
3.1 Hardware Features ............................................................................................................................. 3
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 ........................................................................................................................... 5
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 ...................................................................................................................................... 6
4.4 Test Cases ........................................................................................................................................... 7
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 .................................................................................................................................. 8
4.5.1
Ethernet Packet Generator ..................................................................................................................... 8
4.5.2
Far-End Loopback .................................................................................................................................... 8
4.5.3
Near-End Loopback ................................................................................................................................. 8
5 Additional Information .................................................................................................................. 9
