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Wakeup Status Register - WUS (05810h; R/W1C) — Intel
®
82575EB Gigabit Ethernet Controller
324632-003 Intel
®
82575EB Gigabit Ethernet Controller
Revision: 2.1 Software Developer’s Manual and EEPROM Guide
January 2011 387
14.6.3 Wakeup Status Register - WUS (05810h; R/
W1C)
This register is used to record statistics about all wakeup packets received. If a packet matches multiple
criteria then multiple bits could be set. Writing a 1b to any bit clears that bit.
This register is not cleared when RST# is asserted. It is only cleared when Internal_Power_On_Reset is
de-asserted or when cleared by the software device driver.
Note: If additional packets are received that matches one of the wakeup filters, after the original
wakeup packet is received, the WUS register is updated with the matching filters
accordingly.
14.6.4 IP Address Valid - IPAV (5838h; R/W)
The IP Address Valid indicates whether the IP addresses in the IP Address Table are valid.
FLX2 18 0b Flexible Filter 2 Enable.
FLX3 19 0b Flexible Filter 3 Enable.
Reserved 31:20 0h Reserved.
Field Bit(s) Initial Value Description
LNKC 0 0b Link Status Change.
MAG 1 0b Magic Packet Received.
EX 2 0b Directed Exact Packet Received
The packet’s address matched one of the 16 pre-programmed exact values in the
Receive Address registers.
MC 3 0b Directed Multicast Packet Received
The packet was a multicast packet hashed to a value that corresponded to a 1 bit in
the Multicast Table Array.
BC 4 0b Broadcast Packet Received.
ARP 5 0b ARP Request Packet Received.
IPv4 6 0b Directed IPv4 Packet Received.
IPv6 7 0b Directed IPv6 Packet Received.
MNG 8 0b Indicates that a manageability event that should cause a PME happened.
Reserved 15:9 0b Reserved.
FLX0 16 0b Flexible Filter 0 Match.
FLX1 17 0b Flexible Filter 1 Match.
FLX2 18 0b Flexible Filter 2 Match.
FLX3 19 0b Flexible Filter 3 Match.
Reserved 31:20 0b Reserved.
Field Bit(s) Initial Value Description
V40 0 0b IPv4 Address 0 Valid.
V41 1 0b IPv4 Address 1 Valid.
Field Bit(s) Initial Value Description