Dual-Port Gigabit Ethernet Controller with a PCI Express® Host Interface

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A fully integrated 10/100/1000BASE-X Dual-Port Gigabit Ethernet Media Access Control and Serializer/Deserializer (SerDes) for high-performance server applications
Designed as a gigabit dual-port LAN controller for high-performance server applications, the BCM5715S combines dual 1000BASE-X MACs with dual 1000BASE-X SerDes transceivers, a UMP and an on-chip memory buffer in a single device. The device is fabricated in a 1.2V CMOS process, providing a low-power system solution.
  The BCM5715S provides a single x4 PCI Express host interface and two GbE Controllers. Each function has its own PCI configuration space. Each Ethernet controller has a dedicated on-chip, high-performance RISC processor for custom frame features.


  • Dual integrated 1.25 Gb/s SerDes interface
  •  PCI Express x4 Host Interface
  •  Dual 1000BASE-X Media Access Controllers (MACs)
  •  MACs include integrated high-speed RISC cores, 5 KB receive and 22 KB transmit buffers and CPU task offload features (TCP, IP, UDP checksum and Microsoft® Large Send Offload)


  • Network Interface Cards (NICs)
  • Servers
  • Storage Area Networks


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