Specifications:

• Internal integration 16 kbyte transceiver cache.
• Support automatic polar transformation (DMI/MDIX).
• 3.3 V power supply, IO is compatible with 5 V voltage signal.
• Using W5100 can realize no Internet connection of the operating system.
• W5100 with IEEE802.3 10 base-t and 802.3 u 100 base - TX compatible.
• W5100 is a versatile single-chip network interface chip, internal integration 10/100 Ethernet controller.
• Mainly used in high integration, high stability, high performance and low cost of embedded systems.
• W5100 internal integration of the whole hardware, and after many years of market validation of TCP/IP protocol stack, Ethernet medium transport layer () and physical layer (PHY).
• As many as four separate port, double row 2 * 2.0 mm 14pins.Using W5100 don't need to consider the control of Ethernet, only need for a simple port (Socket) programming.

Features:

• A variety of interface can choose: direct bus, indirect bus and the SPI bus.
• Support hardware TCP/IP protocol stack, supports TCP, UDP, ICMP and IGMP, IPv4, ARP, PPPoE.
• Indicate the output, a variety of information including RX and TX, Full/Duplex, Colision, Link, Speed