BCM57712

Dual-Port 10GBASE-CX4/1000BASE-KX4 iSCSI, FCoE, TOE, RDMA PCI-SIG SR-IOV PCI Express® Gen-2

The BCM57712 is a fifth-generation Convergence Network Interface Card (C-NIC) that enables PCI SIG Single Root IO Virtualization (SR-IOV), FCoE, DCB, along with iSCSI, on-chip TOE, and RDMA.

In addition to the dual-channel XAUI 10 Gb interfaces offered, the BCM57712 provides an operating mode where four 1.25 Gbaud SerDes lanes are supported for 1000BASE-X or SGMII operation. The BCM57712 integrates four IEEE 802.3™-compliant Media Access Controllers (MAC) and supports the NC-SI. Host BMC communication is also supported on top of NC-SI to permit high speed communication between the local host and the Baseboard Management Controller (BMC or MC).

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  • Media interfaces include:
    - Integrated dual 10 Gbps MAC and dual XAUI™/10GBASE-CX4/10GBASE-KX4
    - Integrated quad 1000BASE-X/SGMII operation in 4x1G mode
    - Single 25.00 MHz clock crystal for dual-port 10 Gbps operation
  • Host interfaces include:
    - PCI Express® x8 2.0, 5 GT/s compliant
    - PCI Express x8 1.1, 2.5 GT/s compliant
    - PCI Express Lanes x1, x2, x4, x8
    - No external memory required; flow-through architectureaa
    - PCI Express CLKREQ support
    - Single Root IO Virtualization (SR-IOV)
    - Message Signal Interrupt (MSI/MSI-X) support
  • SR-IOV 1000 Mbit/10 Gbps SerDes-based TCP/IPsolution -Power and space optimized for server blade, rack tower, and C-NIC applications with four-lane XAUI for 10 Gbps operation on server blade backplane or rack/tower using optical or CX-4 cables and up to four ports of 1 Gbps operation over copper or optical fiber for rack and tower servers
  • Extremely low CPU utilization for TCP/IP applications and the host CPU is free to run application code with a minimal load on memory subsystem with zero copy

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