The Hydra EtherX is an Ethernet card designed to interface to the Hydra system via the Expansion port. It is built around Wiznet's W5100 hardwired TCP/IP Ethernet chip and interfaces to the Hydra using SPI.
The Hydra EtherX card comes with a complete eBook (download below) describing how the sample EtherX card driver works from the ground up. The manual covers SPI (serial peripheral interface), Ethernet, and Internet protocols (IP, TCP, UDP). Knowing this, you will be able to write your own drivers for the W5100 or expand on the sample driver already written. The driver includes an easy to use API with source code, examples, tutorials, and detailed explanations. Use the EtherX card to turn the Hydra into a web server, access a file server, or play games over the internet.
Features:
- Access the internet with a Hyrda Game Development Kit
- Network gaming systems
- Hardwired ICP/IP stack
- Tutorial eBook covering SPI, Ethernet, Internet Protocols, and complete development of the API and driver
Key Specifications:
- Power requirements: 3.3V via Hydra Expansion Slot
- Communication: SPI Interface
- Dimensions: 1.28 x 2.35 x 0.68 in (32.65 x 59.70 x 17.27 mm)
- Operating temp range: -32 to +158 °F (-0 to +70 °C)
Alternate viewing angle:

Click through for a close-up.
Downloads & Resources:
HYDRA EtherX Card Manual (.zip)