WG82574L S LBA9 Intel, WG82574L S LBA9 Datasheet - Page 98
![no-image](/images/manufacturer_photos/0/3/336/intel_sml.jpg)
WG82574L S LBA9
Manufacturer Part Number
WG82574L S LBA9
Description
CONTROLLER, ENET, INTEL 82574L, 64PQFN
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAC.pdf
(490 pages)
Specifications of WG82574L S LBA9
Ethernet Type
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
0°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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5.5.3.1.5
5.5.3.1.6
98
1. Hartwell does not support SMBus ARP.
Accepting broadcast Magic Packets* for wake up purposes when the Broadcast Accept
bit of the Receive Control Register (RCTL.BAM) is 0b is a change from previous devices,
which initialized RCTL.BAM to 1b if APM was enabled in the NVM, but then required that
bit to be 1b to accept broadcast Magic Packets*, unless broadcast packets passed
another perfect or multicast filter.
ARP
The 82574L supports receiving ARP request packets for wake up if the ARP bit is set in
the WUFC. Four IPv4 addresses are supported, which are programmed in the IPv4
Address Table (IP4AT). A successfully matched packet must contain a broadcast MAC
address, a protocol type of 0x0806, an ARP opcode of 0x01, and one of the four
programmed IPv4 addresses. The 82574L also handles ARP request packets that have
VLAN tagging on both Ethernet II and Ethernet SNAP types.
Directed IPv4 Packet
The 82574L supports receiving directed IPv4 packets for wake up if the IPV4 bit is set
in the WUFC. Four IPv4 addresses are supported, which are programmed in the IPv4
Address Table (IP4AT). A successfully matched packet must contain the station's MAC
address, a protocol type of 0x0800, and one of the four programmed IPv4 addresses.
The 82574L also handles directed IPv4 packets that have VLAN tagging on both
Ethernet II and Ethernet SNAP types.
Offset
12
12
12
14
16
18
19
20
22
28
32
38
0
6
1
/IPv4 Request Packet
6
6
8
4
2
2
2
1
1
2
6
4
6
4
Bytes
# of
Destination Address
Source Address
Possible LLC/SNAP Header
Possible VLAN Tag
Type
Hardware Type
Protocol Type
Hardware Size
Protocol Address Length
Operation
Sender Hardware Address
Sender IP Address
Target Hardware Address
Target IP Address
Field
82574 GbE Controller—Power Management and Delivery
0x0806
0x0001
0x0800
0x06
0x04
0x0001
-
-
-
IP4AT
Value
Compare
Skip
Skip
Skip
Compare
Compare
Compare
Compare
Compare
Compare
Ignore
Ignore
Ignore
Compare
Action
MAC Header –
processed by main
address filter
ARP
May match any of four
values in IP4AT
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