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LAN9217 Datasheet(PDF) 9 Page - SMSC Corporation |
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LAN9217 Datasheet(HTML) 9 Page - SMSC Corporation |
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9 / 134 page  16-bit High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX Datasheet SMSC LAN9217 9 Revision 1.5 (07-18-06) DATASHEET Chapter 1 General Description 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 architected 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 the most efficient use of memory resources by optimizing packet granularity. Applications The LAN9217 is well suited for many medium-high-performance embedded applications, including: Medium-range cable, satellite and IP set-top boxes High-end audio distribution systems Digital video recorders DVD Recorders/Players High-definition televisions Digital media clients/servers Home gateways 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. |
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