8-port 10 Mbit/s Switch -sierra, Inc

The PM3350 is a low-cost, highly integrated, stand-alone, single-chip switching device for Ethernet IEEE 802.3 switching and bridging applications. The device supports all processing required for switching Ethernet IEEE 802.3 packets between eight independent half-duplex 10 Mbit/s ports. In addition, a Switch built around the ELAN 8x10 CAN be expanded simply by connecting up to 7 additional devices to the on-chip 1 Gbit/s expansion port. Switch configuration and management CAN be performed either remotely (in-band), via the on-chip SNMP MIB, agent and integrated TCP/UDP/IP stack, or from a local CPU interfaced to the expansion port. The ELAN 8x10 also collects per-port and per-host RMON statistics at wire rates on all ports. The ELAN 8x10 chip contains all the required elements of a high-performance Ethernet switch: MAC-layer Interfaces Buffer FIFOs a high-speed DMA engine for fast packet transfers, a local memory Interface for up to 16 MB of external Buffer memory, a compatible PCI bus master and slave unit for modular expansion, and a Switch processing unit that implements the switching and bridging functions. The only additional components required to create a complete 8-port Switch are Ethernet Medium Access Unit (MAU) devices, line transformers, a bank of external memory and a system Clock The ELAN 8x10 device is implemented in high-density CMOS technology for low cost and high performance. It is available in a 256-pin SBGA, and is ideally suited for compact, low-cost desktop, workgroup and departmental Ethernet switching applications. By pmc-sierra
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