10Base-T PHY Registers | Texas Instruments TNETE100A, TNETE211

10Base-T PHY Registers

A.4 10Base-T PHY Registers

The 10Base-T PHY registers are indirectly accessible through the MII. This is a low-speed serial interface which is supported on ThunderLAN through the NetSio register in adapter DIO space. A host software program uses the MCLK, MTXEN, and MDATA bits in this register to implement the MII serial pro- tocol for the management interface.

The 802.3u MII serial protocol allows for up to 32 different PMDs, with up to 32 (16-bit wide) internal registers in each device. The 10Base-T PHY imple- ments seven internal registers, three of which are hardwired. The diagram be- low shows the devices register map. The registers shown in gray are the ge- neric registers mandated by the MII specification. The registers shown in white are TI-specific registers.

Figure A±8. 10Base-T PHY Registers

GEN_ctl

GEN_sts

GEN_id_hi

GEN_id_lo

AN advertisement

AN link-partner ability

AN expansion

Reserved

TLPHY_id

TLPHY_ctl

TLPHY_sts

0x00 PHY generic control register

0x01 PHY generic status register

0x02 PHY generic identifier (high)

0x03 PHY generic identifier (low)

0x04 Autonegotiation advertisement

0x05 Autonegotiation link-partner ability

0x06 Autonegotiation expansion

0x07

through Reserved by 802.3 0x0F

0x10 ThunderLAN PHY identifier

0x11 ThunderLAN PHY control register

0x12 ThunderLAN PHY status register

A-39

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.

Texas Instruments TNETE100A, TNETE211 10Base-T PHY Registers, Figure A±8 Base-T PHY Registers

Models: TNETE110A TNETE211 TNETE100A

A.4 10Base-T PHY Registers

Figure A±8. 10Base-T PHY Registers

TNETE110A, TNETE211, TNETE100A specifications