WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 212

• Manufacturer Part Number: WG82574L S LBA8
• Manufacturer: Intel

Specifications of WG82574L S LBA8

• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Compliant

8.8.1.3.2
8.8.1.3.3
8.8.1.3.4
8.8.1.3.5
8.8.1.4
8.8.1.5
212
Management IP Address (Data Bytes 11:8)
The 82574 does not support an ARP response. As a result, the Management IP address
field is ignored in the 82574.
Asynchronous Notification SMBus Address (Data Byte 12)
This address is used for the asynchronous notification SMBus transaction and for direct
receive.
Interface Data (Data Byte 13)
Interface data byte used in asynchronous notification.
Alert Value Data (Data Byte 14)
Alert Value data byte used in asynchronous notification.
Force TCO Command
This command causes the 82574 to perform a TCO reset, if Force TCO reset is enabled
in the NVM. The force TCO reset clears the data path (Rx/Tx) of the 82574 to enable
the MC to transmit/receive packets through the 82574. This command should only be
used when the MC is unable to transmit receive and suspects that the 82574 is
inoperable. This command also causes the LAN device driver to unload. It is
recommended to perform a system restart to resume normal operation.
The 82574 considers the Force TCO command as an indication that the operating
system is hung and clears the DRV_LOAD flag. The Force TCO Reset command format
is as follows:
Where TCO Mode is:
Management Control
This command is used to set generic manageability parameters. The parameters list is
shown in Management Control Command Parameters/Content. The command is 0xC1
stating that it is a Management Control command. The first data byte is the parameter
number and the data after words (length and content) are parameter specific as shown
in Management Control Command Parameters/Content.
Force TCO
Reset
DO_TCO_RST
Reserved
Function
Field
0
7:1
0xCF
Command
Bit(s)
Perform TCO Reset.
0b: Do nothing.
1b: Perform TCO reset.
Reserved (set to 0x00).
1
Count
Byte
TCO Mode
Data 1
82574 GbE Controller—System Manageability
Description