The Am79C901A HomePHY is a single-chip device that contains both a physical layer (PHY) for 1 Mbps data networking over existing residential telephone wiring based on the specification published by HomePNA and a physical layer for supporting the IEEE 802.3 standard for 10BASE-T. The HomePHY is targeted at embedded applications and has both GPSI and MII-compatible interfaces. The integrated HomePNA transceiver is a physical layer device that enables data networking at speeds up to 1 Mbps over existing residential phone wiring regardless of topology and without disrupting telephone (POTS) service.