Features：

• 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 aPer Port Basis (Egress)

- Programmable Rate Limiting at the Ingress andEgress on a Per Port Basis

- Broadcast Storm Protection with PercentControl (Global and Per Port Basis)

- IEEE 802.1d Rapid Spanning Tree ProtocolSupport

- Tail Tag Mode (1 byte Added before FCS) Support at Port 3 to Inform the Processor whichIngress Port Receives the Packet and its Priority

- Bypass Feature that Automatically Sustains theSwitch Function between Port 1 and Port 2when CPU (Port 3 Interface) Goes to the SleepMode

- Self-Address Filtering

- Individual MAC Address for Port 1 and Port 2

- Supports RMII Interface and 50 MHz ReferenceClock Output

- IGMP Snooping (IPv4) Support for MulticastPacket Filtering

- IPv4/IPv6 QoS Support

- MAC Filtering Function to Forward UnknownUnicast Packets to Specified Port

• Comprehensive Configuration Register Access

- Serial Management Interface (SMI) to All Internal Registers

- MII Management (MIIM) Interface to PHY Registers

- High Speed SPI and I2C Interface to All InternalRegisters

- I/O Pins Strapping and EEPROM to ProgramSelective Registers in Unmanaged SwitchMode

- Control Registers Configurable on the Fly (PortPriority, 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 Portbasis, Four Priority Levels

• Proven Integrated 3-Port 10/100 Ethernet Switch

- 3rd Generation Switch with Three MACs andTwo PHYs Fully Compliant with IEEE 802.3uStandard

- Non-Blocking Switch Fabric Ensures FastPacket Delivery by Utilizing a 1k MAC AddressLookup 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 andCorrection for Straight-Through and CrossoverCables with Disable and Enable Option

- LinkMD® TDR-Based Cable Diagnostics PermitIdentification of Faulty Copper Cabling

- MII Interface Supports Both MAC Mode andPHY Mode

- Comprehensive LED Indicator Support for Link,Activity, Full-/Half-Duplex and 10/100 Speed

- HBM ESD Rating 4 kV

• Switch Monitoring Features

- Port Mirroring/Monitoring/Sniffing: Ingress and/or Egress Traffic to Any Port or MII

- MIB Counters for Fully Compliant StatisticsGathering 34 MIB Counters Per Port

- Loopback Modes for Remote Diagnostic of Failure

• Low Power Dissipation

- Full-Chip Software Power

-Down (Register Configuration Not Saved)

- Energy-Detect Mode Support

- Dynamic Clock Tree Shutdown Feature

- Per Port Based Software Power-Save on PHY(Idle Link Detection, Register Configuration Preserved)

- Voltages: Single 3.3V Supply with Internal 1.8VLDO for 3.3V VDDIO

- Optional 3.3V, 2.5V, and 1.8V for VDDIO

- Transceiver Power 3.3V for VDDA_3.3

• Industrial Temperature Range: –40°C to +85°C

• Available in a 48-Pin LQFP, Lead-Free Package

Applications：

• VoIP Phone

• Set-Top/Game Box

• Automotive

• Industrial Control

• IPTV POF

• SOHO Residential Gateway

• Broadband Gateway/Firewall/VPN

• Integrated DSL/Cable Modem

• Wireless LAN Access Point + Gateway

• Standalone 10/100 Switch