Dual copper Gigabit Ethernet PMC NIC with deep FIFO


This product reached the end of its lifecycle (end-of-life) on August 31, 2010

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PMC676TX is a Gigabit Ethernet PMC NIC with dual 10/100/1000BaseTX interfaces. The card is capable of full duplex operation on each of its channels. The Ethernet/PCI/PCI-X interface includes a powerful DMA engine for each port with very deep FIFO buffers (64K byte). This assures continuous, full bandwidth operation with minimum PCI overhead. The PMC676TX has RJ-45 connectors. This NIC does not have a PCI-to-PCI bridge on board. PMC676TX has a rich suite of host off-loading feature including: Packet filtering based on checksum errors; SNMP and RMON statistic counters; Hardware TCP checksum off-loading; and Support for various address filtering modes such as 16 exact matches (unicast or multicast), 4096-bit hash filter for multicast frames and Promiscuous unicast and multicast. Two PMC676TX boards can be directly cabled with a simple "cross-over". This configuration creates a full duplex 1000Mbit dedicated data path - delivering high bandwidth at very low cost. More complex, dedicated interconnects can be created using a hub or switch. Both point-to-point and switched hubs, in full duplex mode, remove many determinism concerns raised with traditional Ethernet solutions. This makes the PMC676TX an excellent candidate for high performance interconnects that require real time determinism. Software drivers are available for most popular operating systems including Windows, Linux, VxWorks, LynxOS and Solaris. These drivers have been carefully designed and implemented to fit within the LAN protocol stack of the host operating system. Thus all facilities available from the host OS can be used across the PMC676TX. Solaris OBP and PXE boot options are available.

  • Solaris OBP boot option
  • PXE boot option
  • Single port optional
  • Jumbo Frames capable
  • Acrylic or polyurethane conformal coating available
  • Full 1000Mbit point to point performance
  • Dual 10/100/1000BaseT copper Ethernet interfaces
  • DMA engine
  • Front RJ-45 connectors
  • PCI-X, PCI 64-bit/66MHz
  • RoHS versions available


Form Factor
Port Type
Front Panel I/O Connectors
PCI Controller/ Ethernet MAC
Intel 82546


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