LAN9730 Datasheet, PDF (177/222 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

LAN9730/LAN9730i
6.4.12 WAKEUP CONTROL AND STATUS REGISTER (WUCSR)
Address:
12Ch
Size:
32 bits
This register contains data pertaining to the MAC’s remote wakeup status and capabilities.
Bits
31
30:10
9
8
7
Description
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.
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.
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.
6 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.
5 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.
4 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.
3 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).
2 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.
1 Magic Packet Enable (MPEN)
When set, Magic Packet wakeup mode is enabled.
0 Broadcast Wakeup Enable (BCAST_EN)
When set, remote wakeup mode is enabled and the MAC is capable of waking
up from a broadcast frame.
Type
SC
RO
R/W
RO
R/WC
R/WC
R/WC
R/WC
R/W
R/W
R/W
R/W
Default
0b
-
0b
-
0b
0b
0b
0b
0b
0b
0b
0b
 2012-2015 Microchip Technology Inc.
DS00001946A-page 177