MII-Enhanced Interrupt Event Feature

7.1 MII-Enhanced Interrupt Event Feature

ThunderLAN can connect to an external PMI device through its industry stan- dard MII interface. A full description of the MII can be found in the 802.3u stan- dard. The ThunderLAN MII is enhanced in two ways:

-The ThunderLAN MII can be shifted through software into a mode that supports a connection to the TNETE211. The TNETE211 device provides full 802.12 functionality and a 802.12 MII, which allows connection to a PHY for 100VG-AnyLAN. The MII mode can be selected using the MAC_Select field in the NetConfig register.

Figure 7±1. 100VG-AnyLAN Support Through ThunderLAN's Enhanced 802.3u MII

PCI

TLAN

802.3u MII

PCI

TLAN

MII

TNETE211

802.12 MII

- ThunderLAN's MII passes interrupts from the attached PHY to the control- ler. This enables the PHYs to interrupt the host only when needed.

7-2

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Texas Instruments TNETE110A MII-Enhanced Interrupt Event Feature, PCI Tlan, 802.3u MII, Tlan MII TNETE211, 802.12 MII
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TNETE110A, TNETE211, TNETE100A specifications

Texas Instruments has been a leader in developing innovative semiconductor solutions, and their Ethernet PHY (Physical Layer Transceiver) family, specifically the TNETE100A, TNETE211, and TNETE110A, exemplifies this commitment to excellence. These devices are designed to address the needs of a variety of applications, ranging from industrial automation to consumer electronics.

The TNETE100A is a highly versatile Ethernet PHY capable of supporting 10/100 Mbps Ethernet connectivity. One of its main features is the low power consumption, which makes it an ideal choice for battery-operated devices. It incorporates advanced power management technologies, ensuring that the device operates efficiently while maintaining high performance. The TNETE100A also supports Auto-Negotiation, allowing for seamless communication between devices at different speeds, thereby enhancing flexibility in network configurations.

Moving to the TNETE211, this device supports 10/100/1000 Mbps Ethernet, making it suitable for high-speed networking applications. This PHY integrates features such as Energy Efficient Ethernet (EEE), which reduces power consumption during low-traffic periods, aligning with the contemporary demand for energy efficiency in networking equipment. The TNETE211 is engineered with robust EMI (Electromagnetic Interference) performance and provides multiple interface options, making it a versatile choice for embedded systems and networking applications.

The TNETE110A stands out in the lineup as a sophisticated device that supports both Fast Ethernet and Gigabit Ethernet. This PHY utilizes advanced signal processing techniques to ensure superior link robustness and performance in noisy environments. Its features include an integrated transformer driver, which simplifies PCB design and allows for compact device layouts. Additionally, the TNETE110A is designed to be fully compliant with Ethernet standards, ensuring reliable interoperability with other network components.

All three PHYs leverage Texas Instruments' expertise in integrated circuit design, resulting in low jitter and high signal integrity, essential for modern communication standards. They are optimized for a wide range of temperatures, making them suitable for harsh industrial applications. With built-in diagnostic capabilities, these devices also enable efficient fault detection and troubleshooting in network infrastructures.

In summary, the Texas Instruments TNETE100A, TNETE211, and TNETE110A are exemplary Ethernet PHY devices, each tailored to meet specific networking needs while adhering to stringent efficiency and performance criteria. Their advanced features, technologies, and reliability make them pivotal components in today's fast-paced digital landscape.
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