LAN89730 datasheet(175/218 Pages) MICROCHIP

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DS60001348A-page 175

LAN89730

6.4.12

WAKEUP CONTROL AND STATUS REGISTER (WUCSR)

This register contains data pertaining to the MAC’s remote wakeup status and capabilities.

Address:

12Ch

Size:

32 bits

Bits

Description

Type

Default

WFF Pointer Reset (WFF_PTR_RST)

This self-clearing bit resets the Wakeup Frame Filter (WFF) internal read and

write pointers to the beginning of the WFF.

30:10

RESERVED

Global Unicast Wakeup Enable (GUEN)

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.

Note:

The Wakeup Frame Enable (WUEN) bit of this register must also be

set to enable wakeup.

R/W

RESERVED

Perfect DA Frame Received (PFDA_FR)

The MAC sets this bit upon receiving a valid frame with a destination address

that matches the physical address.

This bit is automatically cleared at the completion of a resume sequence if

Resume Clears Remote Wakeup Status (RES_CLR_WKP_STS) is set.

R/WC

Remote Wakeup Frame Received (WUFR)

The MAC sets this bit upon receiving a valid remote Wakeup Frame.

This bit is automatically cleared at the completion of a resume sequence if

Resume Clears Remote Wakeup Status (RES_CLR_WKP_STS) is set.

R/WC

Magic Packet Received (MPR)

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

This bit is automatically cleared at the completion of a resume sequence if

Resume Clears Remote Wakeup Status (RES_CLR_WKP_STS) is set.

R/WC

Broadcast Frame Received (BCAST_FR)

The MAC sets this bit upon receiving a valid broadcast frame.

This bit is automatically cleared at the completion of a resume sequence if

Resume Clears Remote Wakeup Status (RES_CLR_WKP_STS) is set.

R/WC

Perfect DA Wakeup Enable (PFDA_EN)

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

waking up on receipt of a frame with a destination address that matches

the physical address of the device. The physical address is stored in

the

MAC Address High Register (ADDRH) and MAC Address Low Register

(ADDRL).

R/W

Wakeup Frame Enable (WUEN)

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

ing Wakeup Frames as programmed in the Wakeup Frame Filter.

R/W

Magic Packet Enable (MPEN)

When set, Magic Packet wakeup mode is enabled.

R/W

Broadcast Wakeup Enable (BCAST_EN)

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

up from a broadcast frame.

R/W

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