LAN9312-NZW

The LAN9312-NZW is a full featured, 2 port 10/100 managed Ethernet Switch combines all the functions of a 10/100 switch system, including the switch fabric, packet buffers, buffer manager, media access controllers (MAC), PHY transceivers and host bus interface. The LAN9312 complies with the IEEE 802.3 (full/half-duplex 10Base-T and 100Base-TX) Ethernet protocol specification and 802.1D/802.1Q network management protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications. At the core of the switch is the high performance, high efficiency 3 port Ethernet switch fabric. The switch fabric contains a 3 port VLAN layer 2 switch engine that supports untagged, VLAN tagged and priority tagged frames. The switch fabric provides an extensive feature set which includes spanning tree protocol support, multicast packet filtering and Quality of Service (QoS) packet prioritization by VLAN tag, destination address, port default value or DIFFSERV/TOS.

• Easily interfaces to most 32-bit embedded CPU’s
• Integrated IEEE 1588 hardware time stamp unit
• 1K entry forwarding table
• Programmable IEEE 802.1Q tag insertion/removal
• IEEE 802.1d spanning tree protocol support
• 4 Dynamic QoS queues per port
• Programmable class of service map based on input priority
• Remapping of 802.1Q priority field on per port basis
• Fully compliant statistics (MIB) gathering counters
• Control registers configurable on-the-fly
• 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
• Automatic payload padding
• 2k Jumbo packet support
• Programmable interframe gap, flow control pause value
• Full transmit/receive statistics
• Auto-negotiation
• Automatic MDI/MDI-X
• Loop-back mode