Intel GD82559ER - Manual (Page 33)

Datasheet 27
Networking Silicon — GD82559ER
• ISOLATE# trailing edge
The internal initialization signal resets the PCI Configuration Space, MAC configuration, and
memory structure.
The behavior of the PCI RST# signal and the internal 82559ER initialization signal are shown in
the figure below.
4.2.5 Wake-up Events
There are two types of wake-up events: “Interesting” Packets and Link Status Change. These two
events are detailed below.
Note: The wake-up event is supported only if the PME Enable bit in the Power Management Control/
Status (PMCSR) register is set. (The PMCSR is described in
Section 7.1.19, “Power Management
Control/Status Register (PMCSR)” on page 55 .)
4.2.5.1 “Interesting” Packet Events
In the power-down state, the 82559ER is capable of recognizing “interesting” packets. The
82559ER supports pre-defined and programmable packets that can be defined as any of the
following:
• 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
This allows the 82559ER to handle various packet types. In general, the 82559ER supports
programmable filtering of any packet in the first 128 bytes.
Figure 10. 82559ER Initialization upon PCI RST# and ISOLATE#
PCI RST#
Internal hardware
reset
PCI RST#
Internal hardware
reset
ISOLATE#
Internal hardware
reset
D0 - D2 power state
D3 power state
Internal reset
due to ISOLATE#
640 ns
640 ns