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82576EB Datasheet(PDF) 17 Page - Intel Corporation

Part # 82576EB
Description  Intel짰 82576EB Gigabit Ethernet Controller Specification Update
PDF  34 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

82576EB Datasheet(HTML) 17 Page - Intel Corporation

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Intel® 82576EB GbE Controller - Specification Changes
Revision: 2.85
Intel® 82576EB GbE Controller
September 2012
Specification Update
17
Through the course of hardware ECOs, the suffix field is incremented. The purpose of this
information is to enable customer support (or any user) to identify the revision level of a
product.
Network driver software should not rely on this field to identify the product or its
capabilities.
PBA numbers have exceeded the length that can be stored as HEX values in two words.
For newer NICs, the high word in the PBA Number Module is a flag (0xFAFA) indicating
that the actual PBA is stored in a separate PBA block. The low word is a pointer to the
starting word of the PBA block.
The following shows the format of the PBA Number Module field for new products.
The following provides the format of the PBA block; pointed to by word 0x9 above:
The new PBA block contains the complete PBA number and includes the dash and the first
digit of the 3-digit suffix which were not included previously. Each digit is represented by
its hexadecimal-ASCII values.
The following shows an example PBA number (in the new style):
Older NICs have PBA numbers starting with [A,B,C,D,E] and are stored directly in words
0x8-0x9. The dash in the PBA number is not stored; nor is the first digit of the 3-digit
suffix (the first digit is always 0b for older products).
The following example shows a PBA number stored in the PBA Number Module field (in
the old style):
▼ Return to Summary
PBA Number
Word 0x8
Word 0x9
G23456-003
FAFA
Pointer to PBA Block
Word Offset
Description
0x0
Length in words of the PBA Block (default is 0x6)
0x1 ... 0x5
PBA Number stored in hexadecimal ASCII values.
PBA Number
Word
Offset 0
Word
Offset 1
Word
Offset 2
Word
Offset 3
Word
Offset 4
Word
Offset 5
G23456-003
0006
4732
3334
3536
2D30
3033
Specifies 6
words
G2
34
56
-0
03
PBA Number
Byte 1
Byte 2
Byte 3
Byte 4
E23456-003
E2
34
56
03



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