The Microchip LAN9355 is a high performance 3-Port 10/100 Managed Ethernet Switch IC with RMII. The Microchip LAN9355 is a high performance 3-Port 10/100 Managed Ethernet Switch IC. The device supports a dual MII/RMII/Turbo MII to offer up to 200 Mbps network speeds.
The device offers a virtual PHY feature that mimics a single PHY connection through the MII/RMII/Turbo MII interface to the host SoC that can simplify software development. This feature also allows system designers to swap the single PHY and Ethernet switch to create multiple SKUs from the same software driver.
The LAN9355 integrates all the functions of a 10/100 switch system including the Switch Fabric, Packet Buffers, Buffer Manager, MACs, PHY Transceivers and Serial Management. IEEE 1588v2 is supported via an integrated Hardware Time Stamp Unit, which supports end-to-end and peer-to-peer transparent clocks.
Features
IEEE 802.1Q VLAN support (up to 16 VLAN groups) IEEE 1588-2008 Hardware Time Stamping Unit Up to 200 Mbps network speed via a Turbo MII interface Compliant with IEEE 802.3az Energy Efficient Ethernet Wake on LAN (WoL) support IGMP v1/v2 monitoring for multicast packet filtering Optional EEPROM or external CPU serial management support via an I2C™ interface Virtual PHY feature to simplify software development by mimicking multiple switch ports as a single-port PHY Comprehensive power management features Cable diagnostic support Integrated regulators requiring a single 3.3 V supply 42 per-port MIB counters for efficient network management
