LAN9514_12 Datasheet, PDF (8/52 Pages) SMSC Corporation – USB 2.0 Hub and 10/100 Ethernet Controller

1.1.6
USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
Power Management
The LAN9514/LAN9514i features three variations of USB suspend: SUSPEND0, SUSPEND1, and
SUSPEND2. These modes allow the application to select the ideal balance of remote wakeup
functionality and power consumption.
„ SUSPEND0: Supports GPIO, “Wake On LAN”, and “Magic Packet” remote wakeup events. This
suspend state reduces power by stopping the clocks of the MAC and other internal modules.
„ SUSPEND1: Supports GPIO and “Link Status Change” for remote wakeup events. This suspend
state consumes less power than SUSPEND0.
„ SUSPEND2: Supports only GPIO assertion for a remote wakeup event. This is the default suspend
mode for the LAN9514/LAN9514i.
Revision 1.2 (02-29-12)
8
DATASHEET
SMSC LAN9514/LAN9514i