Intel D925XBC, D925XCV LAN Subsystem, Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY

Product Description

1.12 LAN Subsystem

The LAN subsystem includes the Marvell Yukon 88E50 Gigabit (10/100/1000 Mbits/sec) Ethernet Controller and an RJ-45 LAN connector with integrated status LEDs.

1.12.1Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY

Gigabit Ethernet Controller

The Marvell Yukon 88E8050 provides the following functions:

•x1 PCI Express link

•Basic 10/100/1000 Ethernet LAN connectivity

•IEEE 802.1p and 802.1q support

•10/100/1000 IEEE 802.3 compliant

•Compliant to 802.3x flow control support

•Jumbo frame support

•TCP, IP, UDP checksum offload

•Automatic MDI/MDIX crossover

•Full device driver compatibility

•Configuration EEPROMs that contain the MAC address and ASF 2.0 support

•Wake On LAN technology power management support

•PCI Express Active State Power Management Support (L0s)

•ASF 2.0 support

1.12.2RJ-45 LAN Connector with Integrated LEDs

Two LEDs are built into the RJ-45 LAN connector (as shown in Figure 14). Table 7 describes the LED states when the board is powered up and the Gigabit LAN subsystem is operating.

Green LED Green/Yellow LED

OM16513

Figure 14. LAN Connector LED Locations

Table 7.	LAN Connector LED States
LED	Color	LED State	Condition
		Off	LAN link is not established.
Left	Green
		On	LAN link is established.
		Blinking	LAN activity is occurring.
	N/A	Off	10 Mbits/sec data rate is selected.
Right	Green	On	100 Mbits/sec data rate is selected.
	Yellow	On	1000 Mbits/sec data rate is selected.

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