Product Data Sheet / Brochure

Broadcom 957416M4163C-DS103
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BCM957416M4163C Data Sheet Dual-Port 10GBASE-T Ethernet PCI Express 3.0 x8 OCP Mezzanine Card
1.3 BCM57416 Ethernet Controller
The BCM57416 Ethernet Controller is configured as a dual-port 10 Gb/s MAC with integrated 10GBASE-T Ethernet
transceiver to the line side and x8 PCI Express 3.0 interface to the system host.
1.4 Internal Clock
The BCM57416 has an integrated differential oscillator circuit that operates from an external 50 MHz crystal.
1.5 PCI Express Interface
PCIe is a high-bandwidth serial bus providing a low pin-count interface as an alternative to parallel PCI. It is part of the Host
Interface Connector. The BCM57416 complies with the PCI Express Base Specification Revision 3.0, and supports an 8-
lane PCIe 3.0 interface via the host interface connector.
1.6 NC-SI Interface
The BCM57416 Ethernet Controller supports the Network Controller Sideband Interface (NC-SI) Specification version 1.1.0.
The NCSI provides a standardized interface between the system Baseboard Management Controller (BMC) and the
integrated NCSI module of the BCM57416.
1.7 SMBus Interface
The BCM57416 Ethernet Controller SMB0 interface supports serial communications between BCM57416 and the system.
The interface allows the Ethernet Controller to act as a SMBus primary or a secondary device.
1.8 UART Interface
The BCM57416 Ethernet Controller has an integrated UART interface that supports external access to its registers. The
UART signals are brought out to the 4-pin header for connecting a remote access host. The UART debug connector is placed
near the I/O connector to be accessible from outside, for ease of in-system debug.
Table 2: UART Connector Pinout
Pin Signal
1 UART_TXD
2 UART_RXD
3 V33
4 GND