82571EB/82572EI EEPROM Information Guide
22
1.7.24
Management Hardware Configuration Control (Word 23h)
This word contains bits that direct special firmware behavior when configuring the PHY/PCIe*/
SerDes.
1.7.25
PXE Code (Words 30h:35h)
Words 30h through 35h have been reserved for configuration and version values to be used by PXE
code.
1.7.26
Alternate MAC Address (Word 37h)
This word is used as a pointer to an EEPROM block that contains the space for two MAC
addresses. The first three words of the EEPROM block is used to store the MAC address for the
first port (PCI Function 0). The second three words of the EEPROM block is used to store the
MAC address for the second port (PCI Function 1). Initial and default values in the EEPROM
block should be set to FFFFh (for both addresses) indicating that no alternate MAC address is
present.
Note:
Word 37h must be set to FFFFh if alternate MAC addresses are not used. Also, alternate MAC
addresses are ignored by hardware and require specific software support for activation.
1.7.27
Manageability D0 Power Consumption (Word 100h/40h)
Note:
only apply when manageability is used.
This word sets the defaults for some internal registers.
Table 22. Manageability D0 Power Consumption (Word 100h/40h)
Bit
Name
Description
15
Reserved
Reserved. Set to 1b.
14:10
IDED0PWR
Power Consumption value that is reflected in the Data Register of the IDE
function in the Power Management registers at D0 power state. The same
value is reflected in the Power consumption and Power dissipation.
9:5
SerialD0PWR
Power Consumption value that is reflected in the Data Register of the
Serial Port function in the Power Management registers at D0 power
state. The same value is reflected in the Power consumption and Power
dissipation.
4:0
SMSD0PWR
Power Consumption value that is reflected in the Data Register of the
IPMI/KCS function in the Power Management registers at D0 power state.
The same value is reflected in the Power consumption and Power
dissipation.
