WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 114

• 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

6.2.2.4
6.2.2.5
Note:
6.3
6.3.1
6.3.1.1
6.3.1.2
114
iSCSI Boot Configuration Start Address (Word 0x3D)
Checksum Word Calculation (Word 0x3F)
The checksum word (0x3F) is used to ensure that the base NVM image is a valid image.
The value of this word should be calculated such that after adding all the words (0x00-
0x3F), including the checksum word itself, the sum should be 0xBABA. The initial value
in the 16-bit summing register should be 0x0000 and the carry bit should be ignored
after each addition.
Hardware does not calculate the word 0x3F checksum during an NVM write or read. It
must be calculated by software independently and included in the NVM write data. This
field is provided strictly for software verification of NVM validity. All hardware
configuration based on word 0x00-0x3F content is based on the validity of the
Signature field of the NVM.
Manageability Configuration Words
SMBus APT Configuration Words
APT SMBus Address (Word 0x25)
APT Rx Enable Parameters (Word 0x26)
15:0
15:9
8
7:1
0
15:0
7:0
Bit
Bit
Bit
Address
Address
Reserved
MC SMBus
Address
Reserved
Alert Value
Interface
Data
SMBus
Name
Name
Name
Default
0x0
Default
0x0
0b
0x0
0b
Default
0x0
0x0
NVM word address of the iSCSI boot configuration structure starting point.
Defines the default SMBus address.
Reserved
Management Controller (MC) SMBus target address.
Reserved
Rx enable byte 14 (Alert Value).
Rx enable byte 13 (Interface Data).
82574 GbE Controller—Non-Volatile Memory (NVM) Map
Description
Description
Description