KSZ8873RLLI.pdf

Integrated 3-Port 10/100 Managed Switch with PHYs

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 a Per Port Basis (Egress) 

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

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

- IEEE 802.1d Rapid Spanning Tree Protocol Support 

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

- Bypass Feature that Automatically Sustains the Switch Function between Port 1 and Port 2 when CPU (Port 3 Interface) Goes into Sleep Mode 

- Self-Address Filtering 

- Individual MAC Address for Port 1 and Port 2 

- Supports RMII Interface and 50 MHz Reference Clock Output 

- MAC MII Interface Supports Both MAC and PHY Modes 

- IGMP Snooping (IPv4) Support for Multicast Packet Filtering 

- IPv4/IPv6 QoS Support - MAC Filtering Function to Forward Unknown Unicast 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 Internal Registers 

- I/O Pins Strapping and EEPROM to Program Selective Registers in Unmanaged Switch Mode 

- 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 Port basis, Four Priority Levels 

• 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 Ensures Fast Packet Delivery by Utilizing a 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 

- LinkMD® TDR-Based Cable Diagnostics Permit Identification of Faulty Copper Cabling on Port 2 

- Comprehensive LED Indicator Support for Link, Activity, Full-/Half-Duplex and 10/100 Speed - HBM ESD Rating 3 kV 

• 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 Software Power

-Down (Register Configuration Not Saved) 

- Full-Chip Hardware 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 1.8V LDO 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 64-Pin LQFP, Lead-Free Package Applications 

• VoIP Phone 

• Set-Top/Game Box 

• Automotive Ethernet 

• Industrial Control 

• IPTV POF 

• SOHO Residential Gateway 

• Broadband Gateway/Firewall/VPN 

• Integrated DSL/Cable Modem 

• Wireless LAN Access Point + Gateway 

• Standalone 10/100 Switch