LAN9303 Datasheet, PDF (1/366 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII

LAN9303/LAN9303i
Small Form Factor Three
Port 10/100 Managed
Ethernet Switch with Single
MII/RMII/Turbo MII
PRODUCT FEATURES
Datasheet
Highlights
„ Up to 200Mbps via Turbo MII Interface
„ High performance, full featured 3 port switch with
VLAN, QoS packet prioritization, Rate Limiting, IGMP
monitoring and management functions
„ Serial management via I²C or SMI
„ Unique Virtual PHY feature simplifies software
development by mimicking the multiple switch ports
as a single port PHY
Target Applications
„ Cable, satellite, and IP set-top boxes
„ Digital televisions
„ Digital video recorders
„ VoIP/Video phone systems
„ Home gateways
„ Test/Measurement equipment
„ Industrial automation systems
Key Benefits
„ Ethernet Switch Fabric
— 32K buffer RAM
— 512 entry forwarding table
— Port based IEEE 802.1Q VLAN support (16 groups)
– Programmable IEEE 802.1Q tag insertion/removal
— IEEE 802.1D spanning tree protocol support
— 4 separate transmit queues available per port
— Fixed or weighted egress priority servicing
— QoS/CoS Packet prioritization
– Input priority determined by VLAN tag, DA lookup,
TOS, DIFFSERV or port default value
– Programmable Traffic Class map based on input
priority on per port basis
– Remapping of 802.1Q priority field on per port basis
– Programmable rate limiting at the ingress with
coloring and random early discard, per port / priority
– Programmable rate limiting at the egress with leaky
bucket algorithm, per port / priority
— IGMP v1/v2/v3 monitoring for Multicast packet filtering
— Programmable broadcast storm protection with global
% control and enable per port
— Programmable buffer usage limits
— Dynamic queues on internal memory
— Programmable filter by MAC address
„ Switch Management
— Port mirroring/monitoring/sniffing: ingress and/or egress
traffic on any port or port pair
— Fully compliant statistics (MIB) gathering counters
— Control registers configurable on-the-fly
„ Ports
— Port 0 - MII MAC, MII PHY, RMII PHY modes
— 2 internal 10/100 PHYs with HP Auto-MDIX support
— 200Mbps Turbo MII (PHY or MAC mode)
— Fully compliant with IEEE 802.3 standards
— 10BASE-T and 100BASE-TX support
— Full and half duplex support
— Full duplex flow control
— Backpressure (forced collision) half duplex flow control
— Automatic flow control based on programmable levels
— Automatic 32-bit CRC generation and checking
— 2K Jumbo packet support
— Programmable interframe gap, flow control pause value
— Full transmit/receive statistics
— Full LED support per port
— Auto-negotiation
— Automatic polarity correction
— Automatic MDI/MDI-X
— Loop-back mode
„ Serial Management
— I²C (slave) access to all internal registers
— MIIM (MDIO) access to PHY related registers
— SMI (extended MIIM) access to all internal registers
„ Other Features
— General Purpose Timer
— I²C Serial EEPROM interface
— Programmable GPIOs/LEDs
„ Single 3.3V power supply
„ ESD Protection Levels
— ±8kV HBM without External Protection Devices
— ±8kV contact mode (IEC61000-4-2)
— ±15kV air-gap discharge mode (IEC61000-4-2)
„ Latch-up exceeds ±150mA per EIA/JESD 78
„ 56-pin QFN (8x8 mm) Lead-Free RoHS Compliant
Package
„ Available in Commercial & Industrial Temp. Ranges
SMSC LAN9303/LAN9303i
DATASHEET
Revision 1.3 (08-27-09)