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EA-224 Datasheet(PDF) 2 Page - Zarlink Semiconductor Inc |
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EA-224 Datasheet(HTML) 2 Page - Zarlink Semiconductor Inc |
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2 / 29 page  © 1997 Zarlink Semiconductor Inc. Page: 1 Rev. 4.0 –December, 1997 P REL IM INARY DAT A SH EET EA-224 – 4-Port Fast Ethernet Access Controller (XpressFlow TM 2001 Series 10/100 Ethernet Switch Chipset) 1. DISTINCTIVE CHARACTERISTICS 4 independent 10/100Mbps Ethernet Access Ports Direct interface with 10BaseT transceiver IEEE 802.3u compliant MII (Media Independent In- terface) and Serial Management interface Direct interface with 100BaseTX, -T2, -T4, or -TF physical transceivers State of the art 0.5 micron 3.3Volt CMOS process 352-PIN BGA package Operating frequency -33 33 MHz maximum -40 40 MHz maximum -50 50 MHz maximum 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 to minimized CPU overhead 16-bit Processor Bus I/O Interface Allows host to access Control Registers & Local Buffer Memory Supports Big and Little Endian CPUs Direct interface with various different standard microprocessors including 386, 486 families and Motorola MPC series embedded processors. 32-bit XpressFlow Bus Interface Uses Granule for frame transferring between Access Controllers Supports unicast, multicast, and broadcast frames Also detects IEEE 802.3X MAC Control frames Works together with SC-201 XpressFlow Engine Capable to forward frames at full line-rate Distributed Flow Caching™ to reduce frame for- warding latency Supports both Half & Full Duplex operation Programmable Flow Control Enable Jam Fake Collision for Half Duplex Mode Transmit Flow Control Frame for IEEE 802.3x Full Duplex Mode Three frame forwarding modes Store-&-Forward Safe Cut-Thru (Runt Free) Turbo Cut-Thru (10Mbps Mode only) Automatically selects the optimized mode for forwarding Allows manual frame forwarding mode selection override Multi-Media ready with QoS supports Four frame transmission priority queues Complies with IEEE 802.1 Bridge Standard Assigns one unique MAC Address for each port VLAN ID Tagging & Stripping Auto padding if necessary after stripping Automatic retry frame transmission Transmit collision Transmit buffer under-run Automatic receive filtering for bad frames for Store & Forward Mode Bad FCS Short events or frames under 64 bytes Long events or frames over 1518 bytes Automatic statistic collection for RMON LOCAL BUFFER MEMORY Management BUS XpressFlow BUS 16 32 32 EA-224 4-Port Ethernet Access Controller 10/100M BaseTx Xceiver Port 1 Port 3 Port 2 Port 0 10/100M BaseTx Ports |
Similar Part No. - EA-224 |
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Similar Description - EA-224 |
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