Product Data Sheet / Brochure

Broadcom 957414M4142C-DS107
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BCM957414M4142C Data Sheet Dual-Port 25 Gb/s SFP28 Ethernet PCI Express 3.0 x8 OCP 2.0 Mezzanine Card
Figure 3: UART Debug Connector
1.8 Nonvolatile RAM
The BCM57414 Ethernet Controller requires a nonvolatile serial flash memory (NVRAM) to store the device firmware, PCI
Configuration space settings (for example, Device ID, Vendor ID), MAC address, and so on. After power-up, the firmware is
downloaded into the device memory and executed by the on-chip processor.
1.9 Heat Sink
The passive heat sink is attached to the Ethernet Controller using four spring-loaded push pins that insert into four mounting
holes.
1.10 DC/DC Regulators
The onboard voltage regulators use the 12V edge power or 5V auxiliary supply from the host interface connector to derive
the necessary power rails for different circuits and components on the board.
1.11 Power Supplies
All power is derived from the Mezzanine Card Host Interface Connector 12V/5V supply pins. These voltage supply pins feed
on-board regulators that provide the necessary power to the various components on the card. The mezzanine card has six
switching power supplies that power the card’s various +1.0V, +1.25V, +1.8V, and +3.3V loads.
UART Debug
Connector
SFP28 I/O
Connector
SFP28 I/O
Connector