Byte Device ID Vendor ID, Size | Texas Instruments TNETE100A

PCI Configuration Registers

Figure A±1. PCI Configuration Register Address Map

Byte 3		Byte 2	Byte 1		Byte 0
31					0
	Device ID			Vendor ID
	Status			Command
Base Class		Subclass	Program interface		Revision
(02h)		Subclass	(00h)		Revision
(02h)			(00h)
Reserved		Reserved	Latency		Cache line
(00h)		(00h)	timer		size
		I/O base address
		Memory base address
		Reserved (00h)

		Cardbus CIS Pointer
		Reserved (00h)
		BIOS ROM base address
		Reserved (00h)
		Reserved (00h)
Max_Lat		Min_Gnt	Interrupt Pin(01h)		Interrupt line
		Reserved (00h)			Reset control
		Reserved (00h)
		Reserved (00h)			IntDis
		Reserved (00h)

		Reserved (00h)			PCI NVRAM
		Reserved (00h)

00h read only

04h read/write

08h read only

0Ch read/write

10h read/write

14h read/write

18h

28h read only 2Ch

30h read/write

34h

38h

3Ch read/write 40h read/write 44h

48h

read only

B4h

read only

FFh

A.1.1 PCI Autoconfiguration from External 24C02 Serial EEPROM

ThunderLAN allows some of the PCI configuration space registers to be loaded from an external serial EEPROM. These registers contain fixed vendor and device information. Autoconfiguration allows builders of ThunderLAN sys- tems to customize the contents of these registers to identify their own systems, rather than using the Texas Instruments defaults.

The state of the EDIO pin during PCI reset (PRST#), enables (high) or disables (low) autoconfiguration. In order to use a 24C02 EEPROM, the EDIO line re- quires an external pullup. ThunderLAN enables autoconfiguration if it detects this pullup (EDIO high) during PCI reset. If autoconfiguration is not required or no EEPROM is present, the EDIO pin must be tied to ground.

A-3

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 PCI Autoconfiguration from External 24C02 Serial Eeprom, Size

Models: TNETE110A TNETE211 TNETE100A

Figure A±1. PCI Configuration Register Address Map

Byte 3

Device ID

Vendor ID

size

PCI NVRAM

A.1.1 PCI Autoconfiguration from External 24C02 Serial EEPROM

TNETE110A, TNETE211, TNETE100A specifications