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KSZ8893MBLTR

Integrated 3-Port 10/100 Managed Switch with PHYs

Micrel 

Micrel, Inc.

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…)

• 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

• 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 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

KSZ8893MQL/MBL

• 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)

– Per port based software power-save on PHY (idle link

detection, register configuration preserved)

– Voltages: Single power supply: 3.3V

• Industrial Temperature Range: –40oC to +85oC

• Available in 128-Pin PQFP and 100-ball LFBGA,

Lead- free package

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

Note:

1. Reduces cost and time of PCB re-spin.

February 2010

2

M9999-021110-1.6

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