PHY Generic Status Register±GENsts @ | Texas Instruments TNETE100A

10Base-T PHY Registers

A.4.2 PHY Generic Status Register±GEN_sts @ 0x1

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

Reserved

AUTOCOMPLT

RFLT

LINK

JABBER

Table A±20. PHY Generic Status Register Bits

Bit	Name	Function
15	0	100Base-T4 capable: Not supported
14	0	100Base-Tx full-duplex capable: Not supported
13	0	100Base-Tx half-duplex capable: Not supported
12	1	10Base-T full-duplex capable: This bit is hardwired to 1 to indicate that 10Base-T full
		duplex is supported.
11	1	10Base-T half-duplex capable: This bit is hardwired to 1 to indicate 10Base-T half du-
		plex is supported.
10±6	Reserved	Read as 0
5	AUTOCMPLT	Autoconfiguration complete: When this bit is set, it indicates that the autonegotiation
		process has finished or was not enabled. If autonegotiation is enabled, this bit also indi-
		cates that the contents of registers AN_adv, AN_lpa and AN_exp are valid. This bit is
		0 only during an actual negotiation process.
4	RFLT	Remote fault: This bit mirrors the LPRFLT bit received in the most recent autonegotiation
		link code word. When set to 1, this bit indicates that the link partner is in a fault condition.
3	1	Autonegotiation ability: The PHY supports autonegotiation.
2	LINK	Link status: When this bit is read as 1, it indicates that the PHY has determined that a
		valid 10Base-T link has been established. When read as 0, it indicates that the link is
		not valid. A link invalid state is latched (held) until the register is read. This bit has no
		meaning if the AUI interface is selected.

The PHY implements the standard 10Base-T link integrity test state machine. Link pulses are expected to be seen every 8±24 ms to maintain a good link. If no link pulses are seen for over 100 ms, the link-fail state is entered and this bit is cleared. If AUTOENB is not set, the bit is set again after seven consecutive, correctly timed link pulses are re- ceived. If AUTOENB is set, the link fail causes the autonegotiation process to restart.

A-42

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 PHY Generic Status Register±GENsts @, Autocomplt Rflt Link Jabber

Models: TNETE110A TNETE211 TNETE100A