USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
1.1.2USB Hub
The integrated USB hub is fully compliant with the USB 2.0 Specification and will attach to a USB host as a
A dedicated Transaction Translator (TT) is available for each downstream facing port. This architecture ensures maximum USB throughput for each connected device when operating with
The hub works with an external USB power distributed switch device to control VBUS switching to downstream ports, and to limit current and sense
All required resistors on the USB ports are integrated into the hub. This includes all series termination resistors on D+ and D- pins and all required
Four external ports are available for general USB device connectivity.
1.1.3Ethernet Controller
The 10/100 Ethernet controller provides an integrated Ethernet MAC and PHY which are fully IEEE
802.3
The 10/100 Ethernet PHY integrates an IEEE 802.3 physical layer for twisted pair Ethernet applications. The PHY block includes support for
The Ethernet controller implements four USB endpoints: Control, Interrupt,
1.1.4EEPROM Controller
The LAN9514 contains an EEPROM controller for connection to an external EEPROM. This allows for the automatic loading of static configuration data upon
1.1.5Peripherals
The LAN9514 also contains a TAP controller, and provides three PHY LED indicators, as well as eight general purpose I/O pins. All GPIOs can serve as remote wakeup events when LAN9514 is in a suspended state.
The integrated IEEE 1149.1 compliant TAP controller provides boundary scan via JTAG.
1.1.6Power Management
The LAN9514 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.
SMSC LAN9514 | 7 | Revision 1.0 |
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