General Description

The KSZ8893MQL/MBL, a highly integrated layer 2 managed switch, is designed for low port count, cost-sensitive 10/100 Mbps switch systems. It offers an extensive feature set that includes rate limiting, tag/port-based VLAN, QoS priority, management, management information base (MIB) counters, RMII/MII/SNI, and CPU control/data interfaces to effectively address both current and emerging Fast Ethernet applications.

Features

? 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 LinkMDTM TDR-based cable diagnostics permit identification of faulty copper cabling

– 100BASE-FX support on port 1

– MII interface supports both MAC mode and PHY mode

– RMII interface support with external 50MHz system clock

– 7-wire serial network interface (SNI) support for legacy MAC

– Comprehensive LED Indicator support for link, activity, full/half duplex and 10/100 speed

? Comprehensive Configuration Register Access

– Serial management interface (SMI) to all internal registers

– MII management (MIIM) interface to PHY registers

– SPI and I2C 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…) (Continue...)

Applications

? Typical

– Media Converter

– FTTx customer premises equipment

– VoIP Phone

– SOHO Residential Gateway

– Broadband Gateway / Firewall / VPN

– Integrated DSL/Cable Modem

– Wireless LAN access point + gateway

– Set-top/Game Box

– Standalone 10/100 switch

? Upgradeable(1)

– Unmanaged switch with future option to migrate to a managed solution

– Single PHY alternative with future expansion option for two ports

? Industrial

– Applications requiring port redundancy and port monitoring

– Sensor devices in redundant ring topology