WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 229
WG82574IT S LBAC
Manufacturer Part Number
WG82574IT S LBAC
Description
CONTROLLER, ENET, INTEL 82574IT, 64PQFN
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAC.pdf
(490 pages)
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
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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 82574L (such
as SMBus Alert). The 82574L 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 82574L 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 82574L 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 82574L 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
229
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