Nvidia BlueField-2 User Manual page 97

Pin#
10 PACK_ID0, connected to BlueField-2 NIC_GPIO[49]
11 NCSI_TX_EN
12 GND
13 NCSI_TX_D0
14 BMC_RX5
Pin Name
Input
Input
Ground
Input
Input
IO
See note above table regarding NC-SI PACK_ID
should be connected to the Primary controller NC-SI PACK_ID pins to set the appropriate
package ID.
PACK_ID0 should be connected to the endpoint device GPIO associated with Package
ID[0]. PACK_ID1 should be associated with PACK_ID[1].
The baseboard should connect to GND or leave floating.
DPU should have a 4.7k PU.
Transmit enable.
For baseboards, this pin should be connected between the baseboard NC-SI over RBT PHY
and the connector. This signal requires a 100 kΩ pull-down resistor to ground on the
baseboard between the RBT isolator and the DPU cable connector to prevent the card-
side signals from floating when the RBT signals are isolated.
For DPUs, this pin should be connected between the connector and the RBT PHY.
External termination is determined by the DPU RBT PHY requirements.
Ground
Transmit Data In 0.
Data signals from the BMC to the network controller.
For baseboards, this pin should be connected between the baseboard NC-SI over RBT PHY
and the connector. This signal requires a 100 kΩ pull down resistor to GND on the
baseboard between the RBT isolator and the DPUcable connector to prevent the card-
side signals from floating when the RBT signals are isolated.
For DPUs, this pin should be connected between the connector and the RBT PHY.
External termination is determined by the DPU RBT PHY requirements.
UART transmit serial data input. 3.3V UART TX signal from the baseboard Ground
Description/Comments
97