WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 219
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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System Manageability—82574 GbE Controller
8.8.2.2
Note:
Note:
Read Status
Function
Read Status Command
The MC should use this command after receiving a notification from the 82574 (such as
SMBus Alert). The 82574 also sends a notification to the MC in either of the following
two cases:
Commands 0xC0/0xD0 are for backward compatibility and can be used for other
payloads. The 82574 defines these commands in the opcode as well as which payload
this transaction is. When the 0XDE command is set, the 82574 always returns opcode
0XDD with the 82574 status. The MC reads the event causing the notification, using the
Read Status command as follows:
The 82574 response to one of the commands (0xC0 or 0xD0) in a given time as defined
in the SMBus Notification Timeout and Flags word in the NVM.
Status Data Byte 1 lists the status data byte 1 parameters.
Receive TCO Partial
Status
• The MC asserts a request for reading the status.
• The 82574 detects a change in one of the Status Data 1 bits (and was set to send
status to the MC on status change) in the Receive Enable command.
Function
0XC0 or
0XD0 or
0XDE
Command
3
Count
Byte
0XDD
(Op-Code)
Data 1
See Below
Data 1)
(Status
Data 2
(Status Data 2)
Data 3
219
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