LAN9312 datasheet(285/458 Pages) SMSC

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

SMSC LAN9312

285

Revision 1.2 (04-08-08)

DATASHEET

14.3.12

Host MAC Wake-up Control and Status Register (HMAC_WUCSR)

This read/write register contains data and control settings pertaining to the Host MAC’s remote wake-

up status and capabilities. It is used in conjunction with the Host MAC Wake-up Frame Filter Register

(HMAC_WUFF) to fully configure the wake-up frame filter. Refer to Section 9.5, "Wake-up Frame

Detection," on page 116 for additional information.

Offset:

Size:

32 bits

BITS

DESCRIPTION

TYPE

DEFAULT

31:10

RESERVED

Global Unicast Enable (GUE)

When set, the Host MAC wakes up from power-saving mode on receipt of

a global unicast frame. This is accomplished by enabling global unicasts as

a wakeup frame qualifier. A global unicast frame has the MAC Address [1:0]

bits set to 0.

R/W

8:7

RESERVED

Remote Wake-Up Frame Received (WUFR)

The Host MAC sets this bit upon receiving a valid Remote Wake-up frame.

R/WC

Magic Packet Received (MPR)

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

R/WC

4-3

RESERVED

Wake-Up Frame enabled (WUEN)

When set, Remote Wake-Up mode is enabled and the Host MAC is capable

of detecting wake-up frames as programmed in the Host MAC Wake-up

Frame Filter Register (HMAC_WUFF).

R/W

Magic Packet Enable (MPEN)

When set, Magic Packet Wake-up mode is enabled.

R/W

RESERVED

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