● Switch Management Capabilities
◆ 10/100/1000Mbps Ethernet switch basic functions: frame buffer management, address look-up table, queue management, MIB counters
◆ Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 4096 entry forwarding table with 128kByte frame buffer
◆ Jumbo packet support up to 9000 bytes
◆ Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port
◆ MIB counters for fully-compliant statistics gathering 34 counters per port
◆ Tail tagging mode (one byte added before FCS) support at host port to inform the processor which ingress port receives the packet and its priority
◆ Loopback modes for remote failure diagnostics
◆ Rapid spanning tree protocol (RSTP) support for topology management and ring/linear recovery
◆ Multiple spanning tree protocol (MSTP) support
● Two Robust Integrated PHY Ports
◆ 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3
◆ Fast Link-up option significantly reduces link-up time
◆ Auto-negotiation and Auto-MDI/MDI-X support
◆ Energy-Efficient Ethernet (EEE) support with lowpower idle mode and clock stoppage
◆ On-chip termination resistors and internal biasing for differential pairs to reduce power
◆ LinkMD® cable diagnostic capabilities for determining cable opens, shorts, and length
● One Configurable External MAC Port
◆ Reduced Gigabit Media Independent Interface (RGMII) v2.0
◆ Reduced Media Independent Interface (RMII) v1.2 with 50MHz reference clock input/output option
◆ Media Independent Interface (MII) in PHY/MAC mode
● Advanced Switch Capabilities
◆ IEEE 802.1Q VLAN support for 128 active VLAN groups and the full range of 4096 VLAN IDs
◆ IEEE 802.1p/Q tag insertion/removal on per port basis
◆ VLAN ID on per port or VLAN basis
◆ IEEE 802.3x full-duplex flow control and half-duplex back pressure collision control
◆ IEEE 802.1X (Port-Based Network Access Control)
◆ IGMP v1/v2/v3 snooping for multicast packet filtering
◆ IPv6 multicast listener discovery (MLD) snooping
◆ IPv4/IPv6 QoS support, QoS/CoS packet prioritization
◆ 802.1p QoS packet classification with 4 priority queues
◆ Programmable rate limiting at ingress/egress ports
◆ Broadcast storm protection
◆ Four priority queues with dynamic packet mapping for IEEE 802.1p, IPv4 DIFFSERV, IPv6 Traffic Class
◆ MAC filtering function to filter or forward unknown unicast, multicast and VLAN packets
◆ Self-address filtering for implementing ring topologies
● Comprehensive Configuration Registers Access
◆ High-speed 4-wire SPI (up to 50MHz), I2C interfaces provide access to all internal registers
◆ MII Management (MIIM, MDC/MDIO 2-wire) Interface provides access to all PHY registers
◆ In-band management via any of the three ports
◆ I/O pin strapping facility to set certain register bits from I/O pins at reset time
◆ On-the-fly configurable control registers
● Power Management
◆ IEEE 802.3az Energy Efficient Ethernet (EEE)
◆ Energy detect power-down mode on cable disconnect
◆ Dynamic clock tree control
◆ Unused ports can be individually powered down
◆ Full-chip software power-down
◆ Wake-on-LAN (WoL) standby power mode