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

4.1.1Function/Address Settings

The multi-function pins allow the user to enable or disable the applicable functions and determine chip address according to the input level selected. Table 4 shows the status of the function according to the (VMF) selection.

Table 4. Hardware Control Interface (JP1) Functions

 

Address

 

Input Voltage Levels2

 

 

 

 

 

 

 

Pin

Function

VMF1

VMF2

VMF3

VMF4

 

 

 

 

 

 

 

Address Bit 0

1

1

0

0

MF0

 

 

 

 

 

Auto-Negotiation

Disabled

Enabled

Enabled

Disabled

 

 

Sets the initial value of bit 0.12

(0.12 = 0)

(0.12 = 1)

(0.12 = 1)

(0.12 = 0)

 

 

 

 

 

 

 

Address Bit 1

1

1

0

0

MF1

 

 

 

 

 

Repeater / DTE Mode

DTE

Repeater

Repeater

DTE

 

 

Sets the initial value of bit 19.13

(19.13 = 0)

(19.13 = 1)

(19.13 = 1)

(19.13 = 0)

 

 

 

 

 

 

 

Address Bit 2

1

1

0

0

MF2

 

 

 

 

 

Nibble (4B) / Symbol (5B) Mode

Nibble (4B)

Symbol (5B)

Symbol (5B)

Nibble (4B)

 

 

Sets the initial value of bit 19.4

(19.4 = 0)

(19.4 = 1)

(19.4 = 1)

(19.4 = 0)

 

 

 

 

 

 

 

Address Bit 3

1

1

0

0

MF3

 

 

 

 

 

Scrambler Operation

Enabled

Bypassed

Bypassed

Enabled

 

 

Sets the initial value of bit 19.3

(19.3 = 0)

(19.3 = 1)

(19.3 = 1)

(19.3 = 0)

 

 

 

 

 

 

 

Address Bit 4

1

1

0

0

 

 

 

 

 

 

 

If Auto-Negotiate Enabled via MF0, MF4 works in combination with MAN2 (CFG1) to control

MF4

operating speed advertisement capabilities. See Table 5 for details.

 

 

 

 

 

 

 

If Auto-Negotiate Disabled

100TX

100FX

100FX

100TX

 

Then TX/F Mode

 

(19.2 = 0)

(19.2 = 1)

(19.2 = 1)

(19.2 = 0)

 

Sets the initial value of bit 19.2

 

 

 

 

 

 

 

 

 

 

 

Table 5. Operating Speed Advertisement Settings

MF4 Input

MAN2

Function

Voltage Levels1

(CFG1)

 

 

 

 

 

If Auto-Negotiate Enabled via MF0

 

 

 

 

 

VMF1, VMF4

Jumper Not Installed

Advertise all capabilities,

Ignore MAN1 (FDE)

 

 

 

 

VMF1, VMF4

Jumper Installed

Advertise 10 Mbps only,

Follow MAN1 (FDE)

 

 

 

 

VMF2, VMF3

Jumper Not Installed

Advertise 100 Mbps only,

Follow MAN1 (FDE)

 

 

 

VMF2, VMF3

Jumper Installed

Advertise 10/100 Mbps, Follow MAN1 (FDE)

 

 

 

 

1. Input Voltage Levels (VMF1, VMF2, VMF3, VMF4) for MF pins.

12

Development Kit Manual

Page 12
Image 12
Intel LXD970A manual Hardware Control Interface JP1 Functions, Operating Speed Advertisement Settings, MF4 Input

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.