LAN9730 Datasheet, PDF (9/61 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

High-Speed Inter-Chip (HSIC) USB 2.0 to 10/100 Ethernet Controller
Datasheet
1.2.4
1.2.5
1.2.6
1.2.7
Power Management
The LAN9730/LAN9730i features four variations of USB suspend: SUSPEND0, SUSPEND1,
SUSPEND2 and SUSPEND3. 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 events. This 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 device.
 SUSPEND3: Supports GPIO and Good Packet events. A Good Packet is a received frame passing
certain filtering constraints independent of those imposed on Wake On LAN and Magic Packet
frames. This suspend state consumes power at a level similar to the full operational state, however,
it allows for power savings in the Host CPU.
EEPROM Controller (EPC)
LAN9730/LAN9730i contains an EEPROM controller for connection to an external EEPROM. This
allows for the automatic loading of static configuration data upon power-on reset, pin reset or software
reset. The EEPROM can be configured to load USB descriptors, USB device configuration and MAC
address.
General Purpose I/O
When configured for Internal PHY Mode, up to eleven GPIOs are supported. All GPIOs can serve as
remote wakeup events when the LAN9730/LAN9730i is suspended.
System Software
LAN9730/LAN9730i software drivers are available for the following operating systems:
 Windows 8
 Windows 7
 Windows Vista
 Windows XP
 Linux
 Win CE
 MAC OS
In addition, an EEPROM programming utility is available for configuring the external EEPROM.
SMSC LAN9730/LAN9730i
9
DATASHEET
Revision 1.1 (05-13-13)