The RTL8309M-CG is a 9-port 10/100M Ethernet switch controller that integrates memory, nine MACs, and eight physical layer transceivers for 10Base-T and 100Base-TX operation into a single chip. It supports a (T)MII/RMII interface for external devices to connect to the 9th MAC. The external device could be a routing engine, HomePNA, HomePlug, or VDSL transceiver depending on the application.
9-port switch controller with memory and transceiver for 10Base-T and 100Base-TX
Non-blocking wire-speed
Compatible with IEEE 802.3/802.3u
Built-in high efficiency SRAM for packet buffer, with 2K-entry lookup table
2048 byte maximum packet length
Flow control fully supported
Half duplex: Back pressure flow control
Full duplex: IEEE 802.3x flow control
Supports (T)MII/RMII interface connection to external MAC or PHY
xDSL/cable modem router or home gateway applications
HomePNA/HomePlug bridge solutions
Set-top box/TV