WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 222
WG82574L S LBA8
Manufacturer Part Number
WG82574L S LBA8
Description
Manufacturer
Intel
Datasheet
1.WG82574L_S_LBA8.pdf
(472 pages)
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
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8.8.2.3
Note:
8.8.2.4
Note:
Note:
222
Get System MAC Address
The Get System MAC Address returns the system MAC address over to the SMBus. This
command is a single-fragment Read Block transaction that returns the following data:
This command returns the MAC address configured in NVM offset 0.
Get system MAC address format:
Data returned from the 82574:
Read Management Parameters
In order to read the management parameters the MC should execute two SMBus
transactions. The first transaction is a block write that sets the parameter that the MC
wants to read. The second transaction is block read that reads the parameter.
Block write transaction:
Following the block write the MC should issue a block read that reads the parameter
that was set in the Block Write command:
Data returned from the 82574:
The returned data is in the same format of the MC command.
The parameter that is returned might not be the parameter requested by the MC. The
MC should verify the parameter number (default parameter to be returned is 0x1).
If the parameter number is 0xFF, it means that the data that was requested from the
82574 is not ready yet.The MC should retry the read transaction.
Get system MAC address
Management control request
Read management parameter
Get system MAC
Read management
Function
address
parameter
Function
Function
Byte Count
Function
Function
Byte Count
7
N
0xC1
Data 1 (Op-
Data 1 (Op-
Command
Code)
0xD4
Code)
0xD1
82574 GbE Controller—System Manageability
MAC address MSB
Parameter number
1
0xD4
0xD1
Data 2
Byte Count
Data 2
Command
Command
Parameter dependent
…
…
Data
3
Parameter
number
MAC address LSB
Data 1
Data 7
…
Data
N
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