Intel Demo Board with FPGA for SS-SMII (Fiber)-to-MII Conversion General Description, Features

Page 7

LXD9785 PQFP Demo Board with FPGA for SS-SMII (Fiber)-to-MII Conversion

1.0General Description

The LXD9785 PQFP MII Demo Board is an eight-port 100 Mbps Fast Ethernet Media Access Unit (MAU) that provides a working platform for evaluation of the LXT9785/9785E Fast Ethernet Octal Transceiver. All eight network ports provide a fiber interface for a 100BASE-FX connection.

The Demo Board allows system designers to test 100 Mbps Fiber link performance and register functionality using a standard MII interface prior to board prototyping. Two FPGAs convert the eight fiber (SS-SMII) interfaces on the LXT9785/9785E to eight standard MII interfaces. This conversion simplifies evaluation of the LXT9785/9785E, rendering it compatible with existing MII test equipment.

The Demo Board requires three external power supply inputs supplied by 2.5V and 3.3V power supplies.

1.1Features

•Eight independent IEEE 802.3-compliant 100BASE-FX ports.

•Quick setup, ease of use, and clear visibility of application settings for:

—Complete system demonstration.

—Individual circuit isolation.

•JTAG boundary scan.

•Two LED options for major functions:

—Configuration LEDs which can be controlled through register 20 (refer to the LXT9785/ 9785E Datasheet).

—Inter Frame Status LED output controlled by FPGAs.

•Configurable via MDIO port or hardware jumpers.

Development Kit Manual

7

Document #: 249323

Revision #: 003

Rev. Date: January 24, 2002

Page 6 Page 8
Image 7
Page 6 Page 8
Contents January Development Kit ManualDocument # Revision # Rev. Date January 24 Contents Tables Date Revision Description Revision HistoryPage General Description FeaturesLXD9785 Pqfp MII Demo Board Equipment Requirements Fiber Register ConfigurationIntroduction OverviewTypical Test Setup Typical SetupLXD9785/9785E SS-SMII Fiber Demo Board Quick-Start Jumper Settings Quick-Start ChecklistJumper / Label Setting Configuration Switch S8 Quick-Start Switch SettingsSwitch / Label Setting Configuration Switch S1 Switch S5Global Configuration Settings Switch S5 Optional ConfigurationsGlobal Operating Configurations MII Address ConfigurationsMdio Routing Port Alternate Mdio Routing ConfigurationPHY Address Configuration Settings Switch S1 Jumper Setting DescriptionJumper Pin# Symbol Description Jtag Test SignalsExtended Temperature Operation with the LXT9785HE Jtag Test Signal DescriptionsLED Bits Program Description Direct Drive LED Configuration Settings RegisterLEDs Direct Drive LEDsBit Name Description Type Default LED Pulse Stretch Settings RegisterInter Frame Status LEDs LXD9785 Pqfp MII Demo Board Power Fiber Board Revision A2 Board SchematicsMode Pqfp MII MII Ports 4 MIIPorts6and LXD9785 Pqfp Fpga for SS-SMII Fiber-to Fiber Ports 4 Fiber Ports 6 Board SS-SMII to MII Altera Clock Distribution Fpga Pqfp Demo Board with Fpga for SS-SMII MDIO0 and MDC0 Fix MDIO1 LXD9785 Bill of Materials Fiber SS-SMII Bill of MaterialsReference Designator Description Manufacturer Part Number Ferrite Bead FAIR-RITE Panasonic ERJ-6ENF82R5V IC Logic Fairchild

249323-003, Demo Board with FPGA for SS-SMII (Fiber)-to-MII Conversion specifications

The Intel 249323-003 demo board is an advanced platform designed for SS-SMII (Synchronous Serial - Synchronous Media Independent Interface) to MII (Media Independent Interface) conversion, utilizing FPGA technology. This demo board serves as a pivotal tool for developers and engineers in the field, facilitating the evaluation and testing of high-speed networking applications, particularly those involving fiber-optic communication.

At its core, the Intel 249323-003 is equipped with a robust FPGA that is capable of handling complex data processing tasks with high efficiency. The FPGA architecture allows for flexible configuration, enabling users to customize the interface as per their specific application requirements. This adaptability is crucial in developing solutions for various networking protocols, ensuring seamless integration across different mediums.

One of the standout features of the demo board is its support for fiber-optic connections, which are essential for high-speed data transmission over long distances. The board includes interfaces that allow for the connection of fiber transceivers, thereby facilitating faster communication speeds and improved bandwidth efficiency. This capability is particularly beneficial for applications in data centers, telecommunications, and other high-bandwidth scenarios.

Additionally, the Intel 249323-003 demo board showcases low latency performance, a critical characteristic for real-time applications. This feature is achieved through sophisticated design and optimization techniques that ensure quick data processing. The board also supports various data rates, making it versatile enough for different use cases.

Another important aspect is the board’s power consumption efficiency. By implementing advanced power management techniques, the Intel 249323-003 minimizes energy usage while maximizing performance, making it a cost-effective solution for developers looking to create sustainable applications.

In terms of connectivity, the demo board offers multiple I/O options, facilitating interaction with other devices and systems. This eases the development process, allowing engineers to prototype and test their designs rapidly.

In conclusion, the Intel 249323-003 demo board is a sophisticated and versatile platform for SS-SMII to MII conversion. With its powerful FPGA, support for fiber-optic interfaces, low latency, and efficient power management, it stands out as a vital resource for developers working on high-speed networking solutions. Whether for prototyping or extensive testing, this demo board equips engineers with the tools necessary to innovate and elevate their networking projects to new heights.
Top Page Image Contents