Product Overview


  • Two port full-duplex Gigabit Ethernet Controller with an industry standard POS-PHY Level 3 system interface.
  • Provides direct connection to optics.
  • Connection to copper Gigabit Ethernet physical layer devices via two GMII interfaces.
  • Incorporates dual SERDES, compatible to IEEE 802.3 1998 PMA physical layer specification.
  • Supports dual IEEE 802.3 -1998 GMII/TBI interfaces for connection to copper Gigabit Ethernet physical layer devices.
  • Provides dual standard IEEE 802.3 Gigabit Ethernet MACs for frame verification.
  • Provides on-chip data recovery and clock synthesis.
  • Provides eight unicast exact-match address filters to filter frames based on DA, SA, or VID.
  • Each address filter can indicate whether to accept or discard based on a match.
  • Provides 64-group multicast address filter.
  • Internal 16 kbyte TX and 64 kbyte RX FIFOs to accommodate system latencies.
  • SATURN® compatible interface for Packet-Over-SONET Physical Layer and Link Layer devices Level 3 (POS-PHY Level 3 system interface).
  • Line side loopback for system level diagnostic capability.
  • 16 bit generic microprocessor interface for device initialization, control, register and per port statistics access.
  • Typical Applications include:

  • POS-PHY Level 3 provides consistent system interface for multiple PHY types.
  • Edge and Core Routers.
  • Multi-Service Switches.
  • SONET/SDH Transport Equipment.
  • Ethernet over SONET uplinks.
  • Gigabit Ethernet ports for Optical Cross Connects.
  • Gigabit Ethernet Access IADs.
  • Gigabit Ethernet Test Equipment.
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    Product Brief
          Version Issue Date
      PDF Document S/UNI 2XGE Dual Gigabit Ethernet Controller Short Form Data Sheet [63 kB] PMC-1991223 4 2001-08-01
    Reference Design
          Version Issue Date
    Locked PDF Document S/UNI-2XGE Reference Design [3.82 MB] PMC-2000991 3 2001-09-14
    Data Sheet
          Version Issue Date
    Locked PDF Document S/UNI-2xGE Dual Gigabit Ethernet Controller Data Sheet [2.40 MB] PMC-1991129 7 2001-07-19
          Version Issue Date
    Locked PDF Document PM3386 S/UNI-2xGE Rev A Errata [230 kB] PMC-2010140 6 2003-04-16
    Locked PDF Document S/UNI-2XGE Reference Design Errata [424 kB] PMC-2011577 1 2001-07-20
    Software Documentation
          Version Issue Date
    Locked PDF Document S/UNI-2xGE and S/UNI-1xGE Device Driver Manual [826 kB] PMC-2010280 4 2002-10-17
          Version Issue Date
    Locked Compressed Document PM3386 S/UNI-2xGE and PM3387 S/UNI-1xGE Device Driver [161 kB] PMC-2010089 rel 1.1 2002-10-17
    Application Note
          Version Issue Date
    Locked PDF Document Knowledge Base Items for the PM3386 S/UNI-2xGE [737 kB] PMC-2020304 1 2003-10-16
    Locked PDF Document S/UNI-2xGE Ten Bit Interface Model Initialization and Control Application Note [467 kB] PMC-2011018 1 2001-06-05
    Locked PDF Document Interfacing the SUNI2xGE to a GBIC transceiver [240 kB] PMC-2010785 1 2001-04-09
    Locked PDF Document S/UNI - 2XGE Technical Overview [1.03 MB] PMC-1991728 1 2000-10-16
    Locked PDF Document GIGABIT Ethernet over SONET Using the S/UNI-2XGE [183 kB] PMC-2001398 1 2000-09-18
          Version Issue Date
    Locked Compressed Document S/UNI-2xGE [51 kB] PMC-E3262 1.06 2002-10-24
    BSDL Files
          Version Issue Date
      Text Document Boundary Scan Description Language (BSDL) Source Code for the PM3386 S/UNI 2XGE Device [] PMC-2010137 2 2001-04-25