FEATURES
• Monolithic intelligent octal 10/100 Ethernet Switch Port Controller.
• Integrates eight 10/100 MACs that connect to physical layer devices over standard IEEE 802.3u MIIs.
• Supports the Gigabit EXACT Bus Protocol for device interconnect.
• May be used alone or in combination with other devices to build high density 10/100 switches.
• PM3390 EXACT Bus Switch Matrix allows non-blocking expansion up to 96 10/100 Mbit/s ports.
• Layer 2 line rate address lookup capability for all Ethernet port configurations supported.
• Store-and-forward switching using output associated input buffering for efficient memory use without Head Of Line (HOL) blocking.
• Supports 8,000 MAC addresses.
• 1022 multicast groups available. Bitmask per group defines membership.
• EXACT Bus is compatible with common serial devices for simple system stacking using coax or twinax cable.
• Support for IEEE 802.1D bridging and spanning tree algorithm in an external processor.
• Embedded SmartPath Processor supports value-added datapath operations.
• Two 32-bit memory interfaces for flexible combinations of SSRAM, SDRAM, and EPROM allows cost optimization of different applications.
• Programmable packet pattern matchers for identification of ARP, RARP, ICMP, and other protocol or packet types.

APPLICATIONS
• Ethernet Switching System Requiring High Density 10/100 Ports.
• Ethernet Switching Systems Capable of 10, 100, and 1000 Mbit/s Operation When Used with PM3380 and PM3390.