GD82551IT Intel, GD82551IT Datasheet - Page 35

• Manufacturer Part Number: GD82551IT
• Manufacturer: Intel

Specifications of GD82551IT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 196
• Lead Free Status / RoHS Status: Not Compliant

5.3.2
5.3.2.1
Datasheet
Note: The wake-up event is supported only if the PME Enable bit in the Power Management Control/
The following tables list the functionality at the different power states for the 82551IT.
Wake-up Events
There are two types of wake-up events: “Interesting” Packets and Link Status Change. These two
events are detailed below.
Status (PMCSR) register is set.
“Interesting” Packet Event
In the power-down state, the 82551IT is capable of recognizing “interesting” packets. The 82551IT
supports pre-defined and programmable packets that can be defined as any of the following:
This allows the 82551IT to handle various packet types. In general, the 82551IT supports
programmable filtering of any packet in the first 128 bytes.
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Table 11. Functionality at the Different Power States
Address Resolution Protocol (ARP) Packets (with Multiple IP addresses)
Direct Packets (with or without type qualification)
Neighbor Discovery Multicast Address Packet (“ARP” in IPv6 environment)
NetBIOS over TCP/IP (NBT) Query Packet (under IPv4)
Internetwork Package Exchange* (IPX*) Diagnostic Packet
D0u
D0a
D1
D2
D3 (with power)
Dx (x>0 without
PME#)
Power State
Don’t care
Valid
Invalid
Valid
Invalid
Valid
Invalid
Valid
Invalid
Don’t care
Link
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Full functionality at full power and wake on an
invalid link
Full functionality at full power and wake on a valid
link
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Same functionality as D1 (link valid)
Detection for valid link and no link integrity
Same functionality as D1 (link valid)
Detection for valid link and no link integrity
No wake-up functionality.
Power-up state
PCI slave access
Wake-up on “interesting” packets and link
invalid
PCI configuration access
Wake on link valid
PCI configuration access
Functionality
Networking Silicon — 82551IT
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