描述 Description

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.
The KSZ8893MQL/MBL contains two 10/100 transceivers with patented mixed-signal low-power technology, three media access control (MAC) units, a high speed non-blocking switch fabric, a dedicated address lookup engine, and an on-chip frame buffer memory.
Both PHY units support 10BASE-T and 100BASE-TX. In addition, one PHY unit supports 100BASE-FX. The KSZ8893MQL/MBL comes in a lead-free package, and is also available in industrial temperature-grade KS8893MQLI/MBLI and Automotive-grade KSZ8893 MQL AM. (See Ordering Information).

特性 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

?? – 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

應用 Application

? 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

?? – 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

簡介

KSZ8893MBL屬于集成電路（IC）的控制器。由制造生產(chǎn)的KSZ8893MBL控制器該系列產(chǎn)品主要用于在采用不同通信協(xié)議和/或信令方法的端點之間提供信息連接。示例包括將 I2C 總線連接到 UART，將 USB 連接到 I2C、SPI、以太網(wǎng)或 UART、以太網(wǎng) MAC 和 PHY 等的器件。此外，還包括用于通過為點對點通信設計的接口建立多路連接的器件，例如 USB 集線器控制器。