Features:
? Multiple interfaces for choice: Direct bus， indirect bus and SPI bus
? Support hardware TCP / IP protocol stack， support TCP， UDP， ICMP， IGMP， IPv4， ARP， PPPoE
? Up to four independent ports
? Integrated 16KBYTE transceiver cache
? A variety of information outputs， including the RX， TX， Full / Duplex， Colision， Link， Speed
? Support auto polarity conversion (DMI / MDIX)
? 3.3V power supply， IO signal compatible with 5V voltage
? Comes with Ethernet port， 2 * 14 2.0mm double pin
1 x W5100 Ethernet module