Data Sheet

System Manageability—Ethernet Controller I210
663
10.5.9.1.3.1 Management MAC Address (Data Bytes 7:2)
Ignored if the CBDM bit is not set. This MAC address is used to configure the dedicated MAC address. In
addition, it is used in the ARP response packet when the EN_ARP_RES bit is set. This MAC address is
also used when CBDM bit is set in subsequent short versions of this command.
10.5.9.1.3.2 Management IP Address (Data Bytes 11:8)
This IP address is used to filter ARP request packets.
10.5.9.1.3.3 Asynchronous Notification SMBus Address (Data Byte 12)
This address is used for the asynchronous notification SMBus transaction and for direct receive. The
SMBus address is stored in bit 7:1 of this byte. Bit 0 is always 0.
10.5.9.1.3.4 Interface Data (Data Byte 13)
Interface data byte used in asynchronous notification.
10.5.9.1.3.5 Alert Value Data (Data Byte 14)
Alert Value data byte used in asynchronous notification.
10.5.9.1.4 Force TCO Command
This command causes the I210 to perform a TCO reset, TCO isolate, or Firmware Reset
TCO Reset: if Force TCO reset is enabled in the Flash. The force TCO reset clears the data path (Rx/Tx)
of the I210 to enable the MC to transmit/receive packets through the I210. Force TCO reset is asserted
only to the port related to the SMBus address the command. This command should only be used when
the MC is unable to transmit receive and suspects that the I210 is inoperable. The command also
causes the LAN device driver to unload. It is recommended to perform a system restart to resume
normal operation.
TCO isolate: if TCO isolate is enabled in the Flash (See Section 6.7.1). The TCO Isolate command will
disable PCIe write operations to the LAN port. If TCO Isolate is disabled in Flash the I210 does not
execute the command but sends a response to the MC with successful completion. Following TCO
Isolate management sets MANC.TCO_Isolate to 1.
Firmware Reset: This command will cause re-initialization of all the manageability functions and re-load
of manageability related Flash words.
The I210 considers the Force TCO reset command as an indication that the operating system is hung
and clears the DRV_LOAD flag. The Force TCO command format is as follows:
Function Command Byte Count Data 1
Force TCO Reset 0xCF 1 TCO Mode