LAN9420 Datasheet, PDF (134/171 Pages) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

4.4.12
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
Wakeup Control and Status Register (WUCSR)
Offset:
00ACh
Size:
32 bits
This register contains data pertaining to the MAC’s remote wakeup status and capabilities.
BITS
31:10
9
8:7
6
5
4-3
2
1
0
DESCRIPTION
RESERVED
Global Unicast Enable (GUE)
When set, the MAC wakes up from power-saving mode on receipt of a
global unicast frame. A global unicast frame has the MAC Address [0] bit
set to 0.
RESERVED
Remote Wakeup Frame Received (WUFR)
The MAC sets this bit upon receiving a valid remote wakeup frame.
Magic Packet Received (MPR)
The MAC sets this bit upon receiving a valid Magic Packet.
RESERVED
Wakeup Frame Enable (WAKE_EN)
When set, remote wakeup mode is enabled and the MAC is capable of
detecting wakeup frames as programmed in the Wakeup Frame Filter.
Magic Packet Enable (MPEN)
When set, Magic Packet wakeup mode is enabled.
RESERVED
TYPE
RO
RO
R/WC
R/WC
RO
R/W
R/W
RO
DEFAULT
-
0b
-
0b
0b
-
0b
0b
-
Revision 1.6 (07-18-11)
134
DATASHEET
SMSC LAN9420/LAN9420i