Retrain, Lstate | Texas Instruments TNETE100A, TNETE211, TNETE110A

TNETE211 Register Descriptions

B.2.6 ThunderLAN PHY Status Register±TLPHY_sts @ 0x12

Byte	1														Byte 0
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0

MINT PHOK

CONFIG

RETRAIN LSTATE TRFRTO RTRIDL LRCV

LSIL

Table B±4. ThunderLAN PHY Status Register Bits

Bit	Name	Function
15	MINT	MII interrupt: This bit indicates an MII interrupt condition. The MII interrupt request is
		activated whenever this bit is set to 1. The bit may be cleared and the interrupt deas-
		serted by writing a 1 to this bit position. Writing a 0 to this bit has no effect.
		This bit is set to 1 when:

-The state of the PHOK, LINK, JABBER, RETRAIN TRFRTO, RTRIDL, or LSIL changes

-RFLT is set to 1

The condition for the interrupt can be determined by examining these bits. In the case of LINK, which could change before the interrupt type can be determined, ThunderLAN keeps this bit as 0 until it is read, even if the link is restored. This is to ensure that the condition change is not lost.

14	PHOK	Power high OK: This bit is reserved for future use.
13±12	Reserved	Read as 0s
11±8	CONFIG	Configuration bits: These bits indicate the type of PMD attached to the PMI device.
7	Reserved	Read as 0
6	RETRAIN	Retrain link: This bit, when set, indicates that the link must be retrained. It is set if the
		link has been silent too long, bad RLS codes have been detected, training idles have
		been received from the hub, or Rx or Tx jabber has been detected. If the INTEN bit is
		also set, this causes an MII interrupt.
5±4	LSTATE	Link state: This field returns the PMD current link state bits. It is used for informational
		purposes only.
		- 00: Link is silent
		- 01: Data on link
		- 10:	Control on link
		- 11:	Bad RLS code on link

TNETE211 100VG-AnyLAN Demand Priority Physical Media Independent (PMI) Interface

B-11

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 manual Table B±4. ThunderLAN PHY Status Register Bits, Retrain, Lstate

Models: TNETE110A TNETE211 TNETE100A