lan9217 Standard Microsystems Corp., lan9217 Datasheet - Page 9
lan9217
Manufacturer Part Number
lan9217
Description
Lan9217 16-bit High-performance Single-chip 10/100 Ethernet Controller With Hp Auto-mdix Support
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9217.pdf
(138 pages)
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16-bit High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX Support
Datasheet
Chapter 1 General Description
SMSC LAN9217
The LAN9217 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 LAN9217 has been specifically designed to provide the highest performance possible for any 16-
bit application. The LAN9217 is fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant, and
supports HP Auto-MDIX.
The LAN9217 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 microprocessors and microcontrollers as well as 32-bit microprocessors with a
16-bit external bus. The LAN9217 includes large transmit and receive data FIFOs to accommodate
high latency applications. In addition, the LAN9217 memory buffer architecture allows highly efficient
use of memory resources by optimizing packet granularity.
Applications
The LAN9217 is well suited for many medium-high-performance embedded applications, including:
The LAN9217 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 LAN9217 can
automatically generate flow control packets to the remote node, or assert back-pressure on the remote
node by generating network collisions.
The LAN9217 supports numerous power management and wakeup features. The LAN9217 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.
Medium-range cable, satellite and IP set-top boxes
High-end audio distribution systems
Digital video recorders
DVD Recorders/Players
Digital TV
Digital media clients/servers
Home gateways
DATASHEET
9
Revision 2.3 (08-06-08)
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