Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

4.4.12Wakeup 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

 

DESCRIPTION

 

 

TYPE

DEFAULT

 

 

 

 

 

 

 

31:10

RESERVED

 

 

 

RO

-

 

 

 

 

 

 

9

Global Unicast Enable (GUE)

 

 

 

0b

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

8:7

RESERVED

 

 

 

RO

-

 

 

 

 

 

 

6

Remote Wakeup Frame Received (WUFR)

 

 

R/WC

0b

 

The MAC sets this bit upon receiving a valid remote wakeup frame.

 

 

 

 

 

 

 

 

5

Magic Packet Received (MPR)

 

 

R/WC

0b

 

The MAC sets this bit upon receiving a valid Magic Packet.

 

 

 

 

 

 

 

 

 

 

4-3

RESERVED

 

 

 

RO

-

 

 

 

 

 

 

2

Wakeup Frame Enable (WAKE_EN)

 

 

R/W

0b

 

When set, remote wakeup mode is enabled and the MAC is capable of

 

 

 

detecting wakeup frames as programmed in the Wakeup Frame Filter.

 

 

 

 

 

 

 

 

1

Magic Packet Enable (MPEN)

 

 

R/W

0b

 

When set, Magic Packet wakeup mode is enabled.

 

 

 

 

 

 

 

 

 

 

0

RESERVED

 

 

 

RO

-

 

 

 

 

 

 

 

SMSC LAN9420/LAN9420i

133

Revision 1.22 (09-25-08)

 

DATASHEET