Uthernet II Ethernet card for the Apple II series

The Uthernet II is built around the Wiznet W5100 Ethernet controller. The W5100 is “a full-featured, single-chip Internet-enabled 10/100 Ethernet controller” that includes a built-in TCP/IP stack and 16KB internal buffer for data transmission.

Features

 • Support for TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE

• 10BaseT/100BaseTX Ethernet, PHY embedded •

• Auto Negotiation (Full-duplex and half duplex)

• Auto MDI/MDIX

• 4 independent sockets

• Internal 16KB Memory for TX/RX buffers

• Interrupts (IRQ)

• Built-in support for TCP/IP protocols

• Operated in MAC Raw mode

• A fixed upper limit of 1500 bytes (14-byte Ethernet header NOT included)

User manual : http://dserver.macgui.com/Uthernet%20II%20manual%20draft.pdf

Sales : http://a2retrosystems.com/