WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 96

• 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

5.5.3.1
5.5.3.1.1
.
5.5.3.1.2
5.5.3.1.3
96
1. The 82574L does not support SMBus ARP.
Pre-Defined Filters
The following packets are supported by the 82574's pre-defined filters:
Each of these filters are enabled if the corresponding bit in the WUFC is set to 1b.
The explanation of each filter includes a table showing which bytes at which offsets are
compared to determine if the packet passes the filter. Both VLAN frames and LLC/SNAP
can increase the given offsets if they are present.
Directed Exact Packet
The 82574L generates a wake-up event upon receipt of any packet whose destination
address matches one of the 16 valid programmed receive addresses if the Directed
Exact Wake Up Enable bit is set in the Wake Up Filter Control Register (WUFC.EX).
Directed Multicast Packet
For multicast packets, the upper bits of the incoming packet's destination address index
a bit vector, the Multicast Table Array that indicates whether to accept the packet. If the
Directed Multicast Wake Up Enable bit set in the Wake Up Filter Control Register
(WUFC.MC) and the indexed bit in the vector is one then the 82574 generates a wake-
up event. The exact bits used in the comparison are programmed by software in the
Multicast Offset field of the Receive Control Register (RCTL.MO).
Broadcast
If the Broadcast Wake Up Enable bit in the Wake Up Filter Control Register (WUFC.BC)
is set, the 82574 generates a wake-up event when it receives a broadcast packet.
0
0
0
• Directed packet (including exact, multicast indexed, and broadcast)
• Magic Packet*
• ARP
• Directed IPv4 packet
• Directed IPv6 packet
Offset
Offset
Offset
1
/IPv4 request packet
6
6
6
bytes
bytes
bytes
# of
# of
# of
Destination Address
Destination Address
Destination Address
Field
Field
Field
82574 GbE Controller—Power Management and Delivery
0xFF*6
Value
Value
Value
Compare
Compare
Compare
Action
Action
Action
Match any pre-
programmed address
See above paragraph.
Comment
Comment
Comment