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EA218EI5B Datasheet(PDF) 2 Page - Zarlink Semiconductor Inc |
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EA218EI5B Datasheet(HTML) 2 Page - Zarlink Semiconductor Inc |
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2 / 28 page  PRELIMINARY INFORMATION © 1998 Zarlink Semiconductor, Inc. 1 Rev.2.1 – February, 1999 Distinctive Characteristics 8 10Mbps Ethernet Access Ports Direct interface with 10BaseT transceiver 0.5 micron 3.3 Volt CMOS process 352-BGA package Operating frequency -33 33 MHz maximum -40 40 MHz maximum -50 50 MHz maximum -66 66.66 MHz maxi- mum 32-bit Local Buffer Memory Interface Supports 128k to 1M bytes Utilize high performance 32-bit Synchronous Burst SRAM Hardware assisted Buffer and Queue Management 16-bit Management Bus I/O Interface Allows host to access Control Registers & Local Buffer Memory Big and Little Endian CPUs Direct interface to standard micro- processors, including 386, 486 families and Motorola MPC series embedded processors 32-bit XpressFlow Bus Interface Uses Granule for frame transfer- ring between Access Controllers Unicast, multicast, and broadcast frames Also detects IEEE 802.3X MAC Control frames Works together with SC-220 Xpress- Flow Engine Forwards frames at full line-rate Distributed Flow Caching™ to re- duce frame forwarding latency Half and Full Duplex operation Programmable Flow Control Jam Collision for Half Duplex Mode Transmit Flow Control Frame for IEEE 802.3x Full Duplex Mode Supports Store-&-Forward frame forward- EA218E – 8-Port Ethernet Access Controller XpressFlow 2020 Ethernet Routing Switch Chipset LOCAL BUFFER MEMORY MANAGEMENT BUS XPRESSFLOW BUS 16 32 EA-218E 8-Port Ethernet Access Controller 10BaseT Phyiscal Layer Transceiver Port 1 Port 7 Port 6 Port 5 Port 4 Port 3 Port 2 Port 0 8 10BaseT Ports Block Diagram- EA218E 8-Port Ethernet Access Controller General Description The EA-218E provides eight 10Mbps Ethernet network access interface ports. The EA-218E provides the Ethernet MAC protocols, handles the local buffer memory interface and management, arbitrates among multiple priority queues, and interfaces with the XpressFlow Engine and other Access Controllers through the XpressFlow message passing protocol. Related Components: SC220 – XpressFlow Engine EA218 – 6-port 10 + 2-port 10/100 Ethernet Access Controller EA234 – 4-port 10/100Mbps Ethernet Access Controller |
Similar Part No. - EA218EI5B |
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Similar Description - EA218EI5B |
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