WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 232

• 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

Note:
Note:
Note:
8.11.3.2
Figure 50.
232
The only exception to the command-response flow is the Asynchronous Event
Notification (AEN). These control frames are sent unsolicited from the NC to the MC.
AEN functionality by the NC must be disabled by default, until activated by the MC
using the Enable AEN commands.
In order to be considered a valid command, the control frame must:
For example, to target a NC channel with package ID of 0x2 and internal channel ID of
0x5, The MC must set the channel ID inside the control frame to 0x45.
Channel ID is composed of three bits of package ID and five bits of internal channel ID.
There are also commands (such as select package) targeted to the package as a whole.
These commands must use an internal channel ID of 0x1F.
For more details, refer to the NC-SI specification.
NC-SI Frames Receive Flow
Figure 50
NC-SI Frames Receive Flow for the NC
1. Comply with the NC-SI header format.
2. Be targeted to a valid channel in the package via the Package ID and Channel ID
3. Contain a correct payload checksum (if used).
4. Meet any other condition defined by NC-SI.
fields.
shows the overall flow for frames received on the NC from the MC.
Process as NC-SI Control Frame
Send to LAN with matching
configured MAC address
Yes
Yes
82574 GbE Controller—System Manageability
previously configured MAC
Drop frame (belongs to a
Source MAC address ==
NC-SI EtherType?
different Package)
received from MC
EtherType ==
NC-SI frame
address?
No
No