WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 217

• Manufacturer Part Number: WG82574IT S LBAC
• Description: CONTROLLER, ENET, INTEL 82574IT, 64PQFN
• Manufacturer: Intel

Specifications of WG82574IT S LBAC

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

System Manageability—82574 GbE Controller
8.7
Note:
8.7.1
8.7.2
8.7.3
8.7.4
S
1
S
1
1
S
1
S
Slave Address
Slave Address
Slave Address
Slave Address
1100 001
1100 001
1100 001
1100 001
7
7
7
7
SMBus ARP Transactions
All SMBus ARP transactions include the PEC byte.
Prepare to ARP
This command clears the Address Resolved flag (set to false). It does not affect the
status or validity of the dynamic SMBus address and is used to inform all devices that
the ARP master is starting the ARP process:
Reset Device (General)
This command clears the Address Resolved flag (set to false). It does not affect the
status or validity of the dynamic SMBus address.
Reset Device (Directed)
The Command field is NACKed if bits 7:1 do not match the current 82574L SMBus
address. This command clears the Address Resolved flag (set to false) and does not
affect the status or validity of the dynamic SMBus address.
Assign Address
This command assigns the 82574L SMBus address. The address and command bytes
are always acknowledged.
The transaction is aborted (NACKed) immediately if any of the UDID bytes is different
from the 82574L UDID bytes. If successful, the manageability system internally
updates the SMBus address. This command also sets the Address Resolved flag (set to
true).
Wr
Wr
1
0
1
0
Wr
1
0
Wr
1
0
A
1
A
0
1
0
1
A
1
A
0
0
Command
0000 0001
0000 0010
Command
Targeted Slave
8
8
Address | 0
0000 0100
Command
Command
8
8
A
1
A
1
0
0
PEC
[Data Dependent Value]
1
A
0
1
[Data Dependent Value]
A
0
[Data Dependent Value]
PEC
8
Byte Count
8
0001 0001
8
PEC
8
1
A
0
1
A
0
1
A
0
1
P
1
A
0
  
1
P
1
P
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