Smbus Interface; Voltage Regulators; Cpld Interface - Nvidia ConnectX-6 Manual

ConnectX-6 IC has a thermal shutdown safety mechanism that automatically shuts down the ConnectX-6 card in case of a high-temperature event,
improper thermal coupling or heatsink removal.

SMBus Interface

ConnectX-6 technology maintains support for manageability through a BMC. ConnectX-6 OCP 3.0 adapter can be connected to a BMC using MCTP over
SMBus or MCTP over PCIe protocols as if it is a standard NVIDIA OCP 3.0 adapter. For configuring the adapter for the specific manageability solution in use
by the server, please contact NVIDIA Support.

Voltage Regulators

The voltage regulator power is derived from the OCP 3.0 edge connector 12V and 3.3V supply pins. These voltage supply pins feed onboard regulators that
provide the necessary power to the various components on the card.
CPLD Interface
The adapter card incorporates a CPLD device that controls the networking port LEDs and the scan chain. It draws its power supply from 3.3V_EDGE.
16