WG82577LM S LGWS Intel, WG82577LM S LGWS Datasheet - Page 45

• Manufacturer Part Number: WG82577LM S LGWS
• Manufacturer: Intel

Specifications of WG82577LM S LGWS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Device Functionality—82577 GbE PHY
7.4.1.2
7.4.1.3
7.4.1.3.1
ACPI Power Management Wake Up
The 82577 supports ACPI Power Management based wake ups and can generate
system wake up events from three sources:
Activating ACPI Power Management wake up requires the following steps:
Once wake up is enabled, the 82577 monitors incoming packets by first filtering them
according to its standard address filtering method and then by filtering them with all
enabled wake up filters. If a packet passes both the standard address filtering and at
least one of the enabled wake up filters, the 82577:
If enabled, a link state change wake up causes similar results.
Wake Up Packets
The 82577 supports various wake up packets using two types of filters:
Each of these filters are enabled if the corresponding bit in the WUFC register is set to
1b. If the wake up packet passes one of the manageability filters enabled in the
Management Control (MANC) register, then system wake up also depends on the
NoTCO bit (11) in the WUFC register being inactive.
Pre-Defined Filters
The following packets are supported by the 82577’s pre-defined filters:
Each of these filters are enabled if the corresponding bit in the WUFC register is set to
1b.
• Reception of a Magic Packet
• Reception of a ACPI wake up packet
• Detection of a link change of state
• Programming of the WUFC register to indicate the packets it needs to wake up and
• Setting bit 2 (MACPD_enable) of the Port Control register (page 769, register 17) to
• Initiates a the Intel
• Sets one or more of the Received bits in the WUS register. Note that more than one
• Pre-defined filters
• Flexible filters
• Directed Packet (including exact, multicast indexed, and broadcast)
• Magic packet
• IPv4 request packet
• Directed IPv4 packet
• Directed IPv6 packet
• Flexible UDP/TCP and IP filters packets
supplies the necessary data to the IPv4 Address Table (IP4AT) and the Flexible
Filter Mask Table (FFMT), Flexible Filter Length Table (FFLT), and the Flexible Filter
Value Table (FFVT). It can also set the Link Status Change Wake up Enable (LNKC)
bit (bit 0) in the WUFC register to cause wake up when the link changes state.
put the 82577 in wake up mode.
bit is set if a packet matches more than one filter.
®
5 Series Express Chipset wake up event.
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