Emmc Interface; External Pcie Power Supply Connector; Mmcx Ra Pps In/Out Interface - Nvidia BlueField-2 User Manual

eMMC Interface

The DPU incorporates an eMMC interface on the card's print side. The eMMC is an x8 NAND flash and is used for Arm boot, operating system storage, and
disk space. Memory size is either 64GB or 128GB, where 128GB is effectively 40GB with high durability.

External PCIe Power Supply Connector

 Applies to FHHL P-Series DPUs with x16 PCIe Gen 4 lanes only, which require supplementary power to be fed via the DPU's onboard 6-pin ATX power
supply connector. The power cable that should be connected to this onboard ATX connector is not supplied with the DPU; however, this is a
standard cable that is normally available in servers.
The FHHL P-Series DPUs with x16 PCIe Gen 4 lanes incorporate an external 12V power connection through a 6-pin ATX connector. The DPU includes a
special circuitry that provides current balancing between the two power supplies; the 12V from the PCIe x16 standard slot and the 12V from the 6-pin ATX
connector. Since the power provided by the PCIe golden fingers is limited to 75W, a total maximum of up to 150W is enabled through both the 6-pin ATX
connector and the PCIe x16 golden fingers. The actual power consumption is in accordance with the mode of operation of the DPU and is split evenly
between the two power sources.
For the pinout of the onboard 6-pin ATX connector, please refer to
MMCX RA PPS IN/OUT Interface

Applies to the following OPNs: MBF2H516C-CECOT, MBF2H516C-CESOT, MBF2H516C-CEUOT, MBF2M516C-CECOT, MBF2M516C-CESOT, MBF2H536C-
CECOT and MBF2H536C-CESOT, MBF2H536C-CEUOT, MBF2H512C-AECOT, MBF2H512C-AESOT, MBF2H512C-AEUOT, MBF2H532C-AECOT, MBF2H532C-
AESOT.
The DPU incorporates an integrated Hardware Clock (PHC) that allows the DPU to achieve sub-20u Sec accuracy and also offers many timing-related
functions such as time-triggered scheduling or time-based SND accelerations (time-based ASAP²). Furthermore, 5T technology enables the software
application to transmit fronthaul (ORAN) at high bandwidth. The PTP part supports the subordinate clock, master clock, and boundary clock.
External PCIe Power Supply Connector Pins.
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