Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
Chapter 1 General Description
The LAN9116 is a full-featured, single-chip 10/100 Ethernet controller designed for embedded
applications where performance, flexibility, ease of integration and system cost control are required.
The LAN9116 has been architected to provide the best price-performance ratio for any 32-bit
application with medium-high performance requirements. The LAN9116 is fully IEEE 802.3 10BASE-
T and 802.3u 100BASE-TX compliant.
The LAN9116 includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave
interface. The simple, yet highly functional host bus interface provides a glue-less connection to most
common 16-bit and 32-bitmicroprocessors and microcontrollers. The LAN9116 includes large transmit
and receive data FIFOs to accommodate high latency applications. In addition, the LAN9116 memory
buffer architecture allows the most efficient use of memory resources by optimizing packet granularity.
Applications
The LAN9116 is well suited for medium-high-performance embedded applications, including:
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Medium-range cable, satellite and IP set-top boxes
Digital video recorders
DVD Recorders/Players
High-definition televisions
Digital media clients/servers
Home gateways
The LAN9116 also supports features which reduce or eliminate packet loss. Its internal 16-KByte
SRAM can hold over 200 received packets. If the receive FIFO gets too full, the LAN9116 can
automatically generate flow control packets to the remote node, or assert back-pressure on the remote
node by generating network collisions.
The LAN9116 supports numerous power management and wakeup features. The LAN9116 can be
placed in a reduced power mode and can be programmed to issue an external wake signal via several
methods, including “Magic Packet”, “Wake on LAN” and “Link Status Change”. This signal is ideal for
triggering system power-up using remote Ethernet wakeup events. The device can be removed from
the low power state via a host processor command.
SMSC LAN9116
DATASHEET
9
Revision 1.1 (05-17-05)
SMSC [ SMSC CORPORATION ]
