Description
The DM9161 is a physical-layer, single-chip, low-power transceiver for 100BASE-TX and 10BASE-T operations. On the media side, it provides a direct interface either to Unshielded Twisted Pair Cable 5 (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 among products 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 100M or 10M Ethernet operation.
Since Atmel SAM3X8E used by Arduino Due or Taijiuino Due has pins for Ethernet, to get into internet, an Ethernet PHY module is needed. It is known that ATSAM3X-EK has DM9161 chip on board and the library is ready in AVR Studio. We designed this DM9161 module for Taijiuino Due R2. Just plug in and play.
Please notice: Arduino Due doesn't have Ethernet pins on board.