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KSZ8893MQLI Datasheet, PDF (2/116 Pages) Micrel Semiconductor – Integrated 3-Port 10/100 Managed Switch with PHYs | |||
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Micrel, Inc.
Features
⢠Proven Integrated 3-Port 10/100 Ethernet Switch
â 3rd generation switch with three MACs and two
PHYs fully compliant with IEEE 802.3u standard
â Non-blocking switch fabric assures fast packet
delivery by utilizing an 1K MAC address lookup table
and a store-and-forward architecture
â Full duplex IEEE 802.3x flow control (PAUSE) with
force mode option
â Half-duplex back pressure flow control
â HP Auto MDI-X for reliable detection of and correction
for straight-through and crossover cables with disable
and enable option
â Micrel LinkMDTM TDR-based cable diagnostics permit
identification of faulty copper cabling
â 100BASE-FX support on port 1
â MII interface supports both MAC mode and PHY
mode
â RMII interface support with external 50MHz system
clock
â 7-wire serial network interface (SNI) support for
legacy MAC
â Comprehensive LED Indicator support for link,
activity, full/half duplex and 10/100 speed
⢠Comprehensive Configuration Register Access
â Serial management interface (SMI) to all internal
registers
â MII management (MIIM) interface to PHY registers
â SPI and I2C Interface to all internal registers
â I/0 pins strapping and EEPROM to program selective
registers in unmanaged switch mode
â Control registers configurable on the fly (port-priority,
802.1p/d/q, ANâ¦)
⢠QoS/CoS Packet Prioritization Support
â Per port, 802.1p and DiffServ-based
â Re-mapping of 802.1p priority field per port basis
â Four priority levels
⢠Advanced Switch Features
â IEEE 802.1q VLAN support for up to 16 groups (full-
range of VLAN IDs)
â VLAN ID tag/untag options, per port basis
â IEEE 802.1p/q tag insertion or removal on a per port
basis (egress)
â Programmable rate limiting at the ingress and egress
on a per port basis
â Broadcast storm protection with % control (global and
per port basis)
â IEEE 802.1d spanning tree protocol support
â Special tagging mode to inform the processor which
ingress port receives the packet
â IGMP snooping (Ipv4) and MLD snooping (Ipv6)
support for multicast packet filtering
â MAC filtering function to forward unknown unicast
packets to specified port
â Double-tagging support
â Support IEEE 802.1w, 802.1t spanning tree
⢠Low Latency Support
â Repeater mode
KSZ8893MQL/MBL
⢠Switch Monitoring Features
â Port mirroring/monitoring/sniffing: ingress and/or
egress traffic to any port or MII
â MIB counters for fully compliant statistics gathering,
34 MIB counters per port
â Loopback modes for remote diagnostic of failure
⢠Low Power Dissipation:
â Full-chip hardware power-down (register configuration
not saved)
â Per port based software power-save on PHY (idle link
detection, register configuration preserved)
â Voltages: Single power supply: 3.3V
⢠Industrial Temperature Range: â40oC to +85oC
⢠Available in 128-Pin PQFP and 100-ball LFBGA,
Lead- free package
Applications
⢠Typical
â Media Converter
â FTTx customer premises equipment
â VoIP Phone
â SOHO Residential Gateway
â Broadband Gateway / Firewall / VPN
â Integrated DSL/Cable Modem
â Wireless LAN access point + gateway
â Set-top/Game Box
â Standalone 10/100 switch
⢠Upgradeable(1)
â Unmanaged switch with future option to migrate to a
managed solution
â Single PHY alternative with future expansion option
for two ports
⢠Industrial
â Applications requiring port redundancy and port
monitoring
â 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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