DP83251 Datasheet | National Semiconductor

.. DP83251 DP83255 PLAYER Device (FDDI Physical Layer Controller) February 1991 DP83251 55 PLAYER TM Device (FDDI Physical Layer Controller) General Description The DP83251 DP83255 PLAYER device implements one Physical Layer (PHY) entity as defined by the Fiber Distributed Data Interface (FDDI) ANSI X3T9 5 Standard The PLAYER device contains NRZ NRZI and 4B 5B encoders and decoders serializer deserializer framing logic elasticity buffer line state detector generator link error detector repeat filter smoother and configuration switch Features Y Y Y Y Y Y Y Y Y Low power CMOS-BIPOLAR process Single 5V supply Full duplex operation Separate management interface (Control...