FIFO, FLOW CONTROL, VLAN TAGGING, PRIORITY KSZ8893MQL/MBL Integrated 3-Port 10/100 Managed Switch with PHYs Rev. 1.6 with patented mixed-signal low-power technology, General Description three media access control (MAC) units, a high- The KSZ8893MQL/MBL, a highly integrated layer 2 speed non-blocking switch fabric, a dedicated managed switch, is designed for low port count, address lookup engine, and an on-chip frame buffer cost-sensitive 10/100 Mbps switch systems. It offers memory. an extensive feature set that includes rate limiting, Both PHY units support 10BASE-T and 100BASE- tag/port-based VLAN, QoS priority, management, TX. In addition, one PHY unit supports 100BASE-FX. management information base (MIB) counters, The KSZ8893MQL/MBL comes in a lead-free RMII/MII/SNI, and CPU control/data interfaces to package, and is also available in industrial effectively address both current and emerging Fast temperature-grade KS8893MQLI/MBLI and Ethernet applications. Automotive-grade KSZ8893 MQL AM. (See Ordering The KSZ8893MQL/MBL contains two 10/100 Information). transceivers Functional Diagram 1K LOOK-UP ENGINE 10/100 HP AUTO 10/100 T/TX/FX MDIX MAC 1 PHY 1 QUEUE MANAGEMENT 10/100 HP AUTO 10/100 T/TX MDIX MAC 2 PHY 2 BUFFER MANAGEMENT RMII/MII/ 10/100 SNI MAC 3 FRAME BUFFERS SNI MIB SPI SPI COUNTERS MIIM CONTROL EEPROM REGISTERS INTERFACE SMI I2C P1 LED 3:0 LED STRAP IN DRIVERS CONFIGURATION P2 LED 3:0 LinkMD is a registered trademark of Micrel, Inc. Product names used in this datasheet are for identification purposes only and may be trademarks of their respective companies. February 2010 1 M9999-021110-1.6 Micrel, Inc. KSZ8893MQL/MBL Features Proven Integrated 3-Port 10/100 Ethernet Switch 3rd generation switch with three MACs and two Switch Monitoring Features PHYs fully compliant with IEEE 802.3u standard Port mirroring/monitoring/sniffing: ingress and/or Non-blocking switch fabric assures fast packet egress traffic to any port or MII delivery by utilizing an 1K MAC address lookup table MIB counters for fully compliant statistics gathering, and a store-and-forward architecture 34 MIB counters per port Full duplex IEEE 802.3x flow control (PAUSE) with Loopback modes for remote diagnostic of failure force mode option Low Power Dissipation: Half-duplex back pressure flow control Full-chip hardware power-down (register configuration HP Auto MDI-X for reliable detection of and correction not saved) for straight-through and crossover cables with disable Per port based software power-save on PHY (idle link and enable option TM detection, register configuration preserved) Micrel LinkMD TDR-based cable diagnostics permit Voltages: Single power supply: 3.3V identification of faulty copper cabling o o Industrial Temperature Range: 40 C to +85 C 100BASE-FX support on port 1 MII interface supports both MAC mode and PHY Available in 128-Pin PQFP and 100-ball LFBGA, mode Lead- free package RMII interface support with external 50MHz system clock Applications 7-wire serial network interface (SNI) support for legacy MAC Typical Comprehensive LED Indicator support for link, Media Converter activity, full/half duplex and 10/100 speed FTTx customer premises equipment Comprehensive Configuration Register Access VoIP Phone Serial management interface (SMI) to all internal SOHO Residential Gateway registers Broadband Gateway / Firewall / VPN MII management (MIIM) interface to PHY registers Integrated DSL/Cable Modem 2 SPI and I C Interface to all internal registers Wireless LAN access point + gateway I/0 pins strapping and EEPROM to program selective Set-top/Game Box registers in unmanaged switch mode Standalone 10/100 switch Control registers configurable on the fly (port-priority, (1) Upgradeable 802.1p/d/q, AN) Unmanaged switch with future option to migrate to a QoS/CoS Packet Prioritization Support managed solution Per port, 802.1p and DiffServ-based Single PHY alternative with future expansion option Re-mapping of 802.1p priority field per port basis for two ports Four priority levels Industrial Advanced Switch Features Applications requiring port redundancy and port IEEE 802.1q VLAN support for up to 16 groups (full- monitoring range of VLAN IDs) Sensor devices in redundant ring topology VLAN ID tag/untag options, per port basis Note: IEEE 802.1p/q tag insertion or removal on a per port 1. Reduces cost and time of PCB re-spin. 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 spanning tree protocol support Special tagging mode to inform the processor which ingress port receives the packet IGMP snooping (Ipv4) and MLD snooping (Ipv6) support for multicast packet filtering MAC filtering function to forward unknown unicast packets to specified port Double-tagging support Support IEEE 802.1w, 802.1t spanning tree Low Latency Support Repeater mode February 2010 2 M9999-021110-1.6