Intel LXD970A Demo Board for 10/100 manual Jumpers, Jumper Descriptions, Function

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LXD970A — Demo Board for 10/100 and 100BASE-FX Applications

3.0Jumpers

 

There are 7 Jumpers on the LXD970 Demo Board. Table 2 describes these jumpers and their

 

functions.

Table 2.

Jumper Descriptions

 

 

 

Ref Des

 

Function

 

 

 

JP1

 

Hardware Control Interface: Provides access to voltage sensitive manual control functions. See Tables 3, 4

 

and 5 for details.

 

 

 

 

 

JP3

 

MDIO: Connects the MDIO pin to the MII connector. With the trace cut and the jumper open, the MDIO pin

 

can be connected to an external device.

 

 

 

 

 

JP4

 

MDC: Connects the MDC pin to the MII connector. With the trace cut and the jumper open, the MDC pin can

 

be connected to an external device.

 

 

 

 

 

JP5

 

TEST: This jumper should not be installed for normal operation. This jumper is used to put the chip into a

 

test mode that is used to characterize the chip.

 

 

 

 

 

 

 

POWER DOWN: With the jumper installed the chip goes into a power down mode.

JP6

 

In power down mode the MII port (except MDIO and MDC), the twisted pair port and the LED pins are

 

 

tristated.

 

 

 

JP7

 

MII: 18-pin straight header that is connected to all the MII interface signal pins. There is a ground test point

 

next to C20 to ground probes to.

 

 

 

 

 

 

 

ANALOG VCC CONNECT: Connects MII connector power to the analog portion of the chip.

 

 

To use +5V power from MII connector:

 

 

No action required. The jumpers (pins 1 & 2 and 3 & 4) are shorted via a trace on the bottom of board.

JP8

 

However, if the traces are cut, the jumpers must be installed to supply power from MII to analog VCC (VCCA).

 

 

To use alternate power supply for Analog VCC:

 

 

Cut the trace on the bottom of board across pins 3 and 4 shorting JP8. With no jumpers installed, an external

 

 

power can be connected. Provide an alternate power supply ( +5V) to pin 3 of JP8.

 

 

 

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Development Kit Manual

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Contents LXD970A Demo Board for 10/100 and 100BASE-FX Applications Development Kit ManualPage Contents Page Features General DescriptionLXD970A Demo Board MIIEquipment and Setup Test SetupOptional Test Setup Loading Test FileTest Point Descriptions Power Supply OptionTest Points Label Ref Des DescriptionJumper Descriptions JumpersFunction Parameter Symbol Min Max Units Multi-Function PinsMF Pins Input Voltage Levels Hardware Control InterfaceHardware Control Interface JP1 Functions Operating Speed Advertisement SettingsIf Auto-Negotiate Enabled via MF0 Address Input Voltage Levels2 PinAdditional JP1 Jumper Functions LED IndicatorsLED Descriptions LXD970A Schematic

LXD970A Demo Board for 10/100, LXD970A specifications

The Intel LXD970A and the LXD970A Demo Board represent significant advancements in networking technology, designed to provide efficient solutions for both developers and engineers looking to implement 10/100 Mbps networking solutions. These products serve as an excellent choice for various applications, including embedded systems, industrial automation, and networking equipment.

At the core of the LXD970A is its robust support for both 10BASE-T and 100BASE-TX Ethernet standards, allowing users to seamlessly integrate into existing networks while also supporting higher bandwidth requirements. This dual capability not only enhances flexibility but also ensures compatibility with a wide range of legacy and modern devices.

One of the key features of the LXD970A is its advanced integrated design, featuring a built-in media access control (MAC) layer, which streamlines the overall design by reducing the need for additional components. This integration results in lower power consumption, which is crucial for battery-powered applications as well as environmentally conscious designs.

The LXD970A Demo Board acts as a comprehensive platform for developers. With easy access to all the necessary interfaces, including GPIO (General Purpose Input/Output) and a simple Ethernet connector, the demo board provides an out-of-the-box experience, enabling users to test and develop applications rapidly. Comprehensive documentation and sample code assist in accelerating the development process.

Moreover, with a focus on security, the LXD970A supports various protocols and features designed to protect data integrity and prevent unauthorized access. This is particularly important for applications that handle sensitive information across networks.

The Intel LXD970A also supports Automatic MDI/MDI-X crossover detection, eliminating the need for crossover cables and simplifying the network setup. This feature enhances ease of use and makes it suitable for various networking environments, ensuring that installations are trouble-free and efficient.

In addition to its technical specifications, the LXD970A is also designed with durability in mind, making it suitable for industrial environments where rugged performance is essential. Its operational temperature range and reliability standards are tailored to meet the demands of harsh conditions often found in industrial applications.

Overall, the Intel LXD970A and its accompanying demo board are invaluable tools for developers and engineers seeking to leverage the benefits of high-speed networking while maintaining flexibility and compatibility across a broad spectrum of devices and applications. With its blend of advanced features, low power design, and extensive support, the LXD970A stands out as a significant asset in the toolkit of any networking professional.
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