DM9161AEP-10/100 Mbps Fast Ethernet Physical Layer

10/100 Mbps Fast Ethernet Physical LayerFully complies with IEEE 802.3u 10Base-T/100Base-TX/FX?Support Auto-Negotiation function, compliant with IEEE802.3uFully integrated Physical layer single chip with direct interface to magneticIntegrated 10Base-T and 100Base-TX transceiverFar end fault signaling option in FX modeSelectable MII or RMII (Reduced MII) interface, at he 100BASE-TXSelectable twisted-pair or fiber mode outputSelectable full-duplex or half-duplex operation  48-pin LQFP small package (1×1 cm) The DM9161 is a physical layer, single-chip, and low power transceiver for 100BASE-TX 100BASE-FX and 10BASE-T operations. On the media side, it provides a direct interface either to Unshielded Twisted Pair Category 5 Cable (UTP5) for 100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through the Media Independent Interface (MII), the DM9161 connects to the Medium Access Control (MAC) layer, ensuring a high inter-operability from different vendors.The DM9161 uses a low power and high performance CMOS process. It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u, including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD), 10BASE-TX Encoder/Decoder (ENC/DEC), and Twisted Pair Media Access Unit (TPMAU). The DM9161 provides a strong support for the auto-negotiation function, utilizing automatic media speed and protocol selection. Furthermore, due to the built-in wave-shaping filter, the DM9161 needs no external filter to transport signals to the media in 100BASE-TX or 10BASE-T Ethernet operation.