Intel PCI User Manual
104
Software Developer’s Manual
EEPROM Interface
5.6.3
SerDes Configuration (Word 04h)
If this word has a value of other than FFFFh, software programs its value into the Extended PHY
Specific Control Register 2, located at address 26d in the PHY register space (see
Specific Control Register 2, located at address 26d in the PHY register space (see
).
Note: SerDes Configuration (Word 04h) is a reserved area for the 82544GC/EI, 82540EP/EM, 82541xx,
and 82547GI/EI.
5.6.4
EEPROM Image Version (Word 05h)
Word 05h determines the EEPROM image version for the 82541xx and the 82547GI/EI.
5.6.5
Compatibility Fields (Word 05h - 07h)
These areas are reserved for compatibility information and are used by software drivers.
5.6.6
PBA Number (Word 08h, 09h)
A nine-digit Printed Board Assembly (PBA) number, used for Intel manufactured adapter cards,
are stored in a four-byte field. Other hardware manufacturers can use these fields as they wish.
Software device drivers should not rely on this field to identify the product or its capabilities.
Software device drivers should not rely on this field to identify the product or its capabilities.
3
Reserved
Reserved for future use. Set this bit to 0b.
2
BOB
PCI bridge. Set this bit to 0b (default) to disable PCI bridge; set to 1b to
enable PCI bridge.
1b is the default setting for the 82540EP/EM.
enable PCI bridge.
1b is the default setting for the 82540EP/EM.
1:0
Reserved
Reserved for future use. Set these bits to 0b.
a.
Not applicable to the 82544GC/EI or 82541ER.
Table 5-4. Software Compatibility Word (Word 03h)
Bits
Name
Value
15:12
EEPROM major version.
0000h
11:8
EEPROM minor version.
0000h
7:0
EEPROM fix.
00000000h