WG82574L S LBA9 Intel, WG82574L S LBA9 Datasheet - Page 256

• Manufacturer Part Number: WG82574L S LBA9
• Description: CONTROLLER, ENET, INTEL 82574L, 64PQFN
• Manufacturer: Intel

Specifications of WG82574L S LBA9

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.15.2.1
8.15.3
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Recommendation:
For further details, refer to the NC-SI specification.
Set Link While LAN PCIe Functionality is Disabled
In cases where the 82574 is used solely for manageability and its LAN PCIe function is
disabled, using the NC-SI Set Link command while advertising multiple speeds and
enabling auto-negotiation results in the lowest possible speed chosen.
To enable link of higher a speed, the MC should not advertise speeds that are below the
desired link speed, as the lowest advertised link speed is chosen.
When the 82574 is only used for manageability and the link speed advertisement is
configured by the MC, changes in the power state of the LAN device is not effected and
the link speed is not re-negotiated by the LAN device.
Statistics
The MC might use the statistics commands as defined in NC-SI. These counters are
meant mostly for debug purposes and are not all supported.
The statistics are divided into three commands:
1. Controller statistics - These are statistics on the primary interface (to the host
2. NC-SI statistics - These are statistics on the NC-SI control frames (such as
3. NC-SI pass-through statistics - These are statistics on the NC-SI pass-through
• Unless explicitly needed, it is not recommended to use this feature. The NC-SI Set
• It is recommended that the MC first query the link status using the Get Link Status
Link command does not expose all the possible link settings and/or features. This
might cause issues under different scenarios. Even if decided to use this feature, it
is recommended to use it only if the link is down (trust the 82574 until proven
otherwise).
command. The MC should then use this data as a basis and change only the needed
parameters when issuing the Set Link command.
operating system). See the NC-SI specification for details.
commands, responses, AENs, etc.). See the NC-SI specification for details.
frames. See the NC-SI specification for details.
82574 GbE Controller—System Manageability