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SC220I6PTAV Datasheet(PDF) 3 Page - Zarlink Semiconductor Inc |
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SC220I6PTAV Datasheet(HTML) 3 Page - Zarlink Semiconductor Inc |
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3 / 34 page  PRELIMINARY INFORMATION XpressFlow-2020 Series – SC220 Ethernet Switch Chipset XpressFlow Engine © 1998 Vertex Networks, Inc. 2 Rev. 4.5 – February 1999 Characteristics Continue t Built-in address to port resolution ◊ Embedded 32-bit HISC™ (High density Instruction Set Core) Processor ◊ Optimized architecture for switch appli- cations ◊ Loadable firmware for easy upgrade t Supports unicast, multicast, and broadcast frames t Address Filtering ◊ Destination & Source MAC address matching & filtering t VLAN classification & verification ◊ Up to 62 groups ◊ Level 1 and 2 mapping ◊ VLAN ID tagging & stripping ◊ Auto padding if necessary after stripping t Supports Store-&-Forward Frame Forward- ing Mode t Collects statistics for RMON CONTROL BUFFER MEMORY XpressFlow BUS XpressFlow Bus Interafce 32 32 32 Automatic Buffer Manager Mngmt Bus Interface 32 32 Control Buffer Memory Interface HISC I/O Registers 32 CAM Interface ADDRESS MAPPING TABLE 32 32 16 HISC Core 32 16 32 32 32 CAM SRAM 16 SC220 XpressFlow Engine Block Diagram – SC220 XpressFlow Engine Typical Application: ◊ A 16-port Ethernet Switch with 4-Fast Ethernet Address Mapping Table Flash ROM SC220 XpressFlow Engine EA208E 8-Port Ethernet Access Controller Management Bus Buffer RAM Switch Manager CPU DRAM RS232 Local Control Console Buffer RAM 8 Ethernet ports Buffer RAM 8 Ethernet ports XpressFlow Bus EA208E 8-Port Ethernet Access Controller Buffer RAM Four 100M Fast Ethernet ports EA234 4-Port Ethernet Access Controller System Block Diagram -- 16-Port Ethernet Switch with 4 Fast Ethernet Up-Links |
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