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KSZ8873RLL Datasheet(PDF) 2 Page - Micrel Semiconductor |
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KSZ8873RLL Datasheet(HTML) 2 Page - Micrel Semiconductor |
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2 / 103 page  Micrel, Inc. KSZ8873MLL/FLL/RLL September 2009 2 M9999-092309-1.2 Features • Advanced Switch Features – IEEE 802.1q VLAN support for up to 16 groups (full-range of VLAN IDs) – VLAN ID tag/untag options, per port basis – IEEE 802.1p/q tag insertion or removal on a per port basis (egress) – Programmable rate limiting at the ingress and egress on a per port basis – Broadcast storm protection with % control (global and per port basis) – IEEE 802.1d rapid spanning tree protocol support – tail tag mode (1 byte added before FCS) support at port3 to inform the processor which ingress port receives the packet and its priority – Bypass feature which Automatically sustains the switch function between Port1 and Port2 when CPU (Port 3 interface) goes to the sleep mode – Self-address filtering – Individual MAC address for port1 and port2 – Support RMII interface and 50 MHz reference clock output – MII interface supports both MAC mode and PHY mode with 200Mbps Turbo MII mode option – IGMP snooping (Ipv4) support for multicast packet Filtering – IPv4/IPv6 QoS support. – MAC filtering function to forward unknown unicast packets to specified port – Double-tagging support • Comprehensive Configuration Register Access – Serial management interface (SMI) to all internal registers – MII management (MIIM) interface to PHY registers – High speed SPI and I 2C Interface to all internal registers – I/0 pins strapping and EEPROM to program selective registers in unmanaged switch mode – Control registers configurable on the fly (port-priority, 802.1p/d/q, AN…) • QoS/CoS Packet Prioritization Support – Per port, 802.1p and DiffServ-based – Re-mapping of 802.1p priority field per port basis Four priority levels • Proven Integrated 3-Port 10/100 Ethernet Switch – 3rd generation switch with three MACs and two PHYs fully compliant with IEEE 802.3u standard – Non-blocking switch fabric assures fast packet delivery by utilizing an 1K MAC address lookup table and a store-and- forward architecture – Full duplex IEEE 802.3x flow control (PAUSE) with force mode option – Half-duplex back pressure flow control – HP Auto MDI-X for reliable detection of and correction for straight-through and crossover cables with disable and enable option – Micrel LinkMD ® TDR-based cable diagnostics permit identification of faulty copper cabling on Port 2 – Comprehensive LED Indicator support for link, activity, full/half duplex and 10/100 speed – HBM ESD Rating 6kV • Switch Monitoring Features – Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port or MII – MIB counters for fully compliant statistics gathering 34 MIB counters per port – Loopback modes for remote diagnostic of failure • Low Power Dissipation: – Full-chip hardware power-down (register configuration not saved) – Full-chip software power-down (register configuration not saved) – Energy-detect mode support – Dynamic clock tree shutdown feature – Per port based software power-save on PHY (idle link detection, register configuration preserved) – Voltages: Single 3.3V or 2.5V supply with internal 1.8V LDO and optional 3.3V, 2.5V and 1.8V VDDIO • Industrial Temperature Range: –40 oC to +85oC • Available in 64-Pin LQFP, Lead-free package Applications • Typical – VoIP Phone – Set-top/Game Box – Automotive – Industrial Control – IPTV POF – SOHO Residential Gateway – Broadband Gateway / Firewall / VPN – Integrated DSL/Cable Modem – Wireless LAN access point + gateway – Standalone 10/100 switch |
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