30-pin NC-SI Connector
The below table applies to the engineering samples of the following OPNs:
MBF2H516C-EECOT, MBF2H516C-EESOT, MBF2M516C-EECOT and MBF2M516C-EESOT.
Pin # |
Pinout |
I/O |
Description / Comments |
1 |
NCSI_REF_CLK |
Input |
50MHz REF CLK for NC-SI BUS |
2 |
GND |
GND |
Ground |
3 |
NCSI_ARB_IN |
Input |
NC-SI hardware arbitration input |
4 |
PACK_ID0, connected to BlueField-2 device pin NIC_GPIO[49] |
Input |
See the note above table |
5 |
NCSI_ARB_OUT |
Output |
NC-SI hardware arbitration output |
6 |
PACK_ID1, connected to BlueField-2 device pin NIC_GPIO[47] |
Input |
See the note above table |
7 |
NCSI_RX_D0 |
Output |
Receive Data Out 0 |
8 |
GND |
GND |
Ground |
9 |
NCSI_RX_D1 |
Output |
Receive Data Out 1 |
10 |
GND |
GND |
Ground |
11 |
NCSI_CRS_DV |
Output |
Carrier Sense / Receive Data Valid |
12 |
GND |
GND |
Ground |
13 |
NCSI_TX_D0 |
Input |
Transmit Data In 0 |
14 |
GND |
GND |
Ground |
15 |
NCSI_TX_D1 |
Input |
Transmit Data In 0 |
16 |
GND |
GND |
Ground |
17 |
NCSI_TX_EN |
Input |
Transmit Enable |
18 |
GND |
GND |
Ground |
19 |
Reserved |
||
20 |
Reserved |
||
21 |
BMC_I2C2_SDA |
Input/Output |
Open-drain signal |
22 |
NIC_BMC_CTRL1, connected to BMC device pin W4 (Open Drain) |
Input/Output |
Open-drain signal |
23 |
BMC_I2C2_SCL |
Input/Output |
Open-drain signal |
24 |
PACK_ID2, connected to BlueField-2 device pin NIC_GPIO[46] |
Input |
See description above table |
25 |
GND |
GND |
Ground |
26 |
NIC_BMC_CTRL0, connected to BMC device pin Y3 (Open Drain) |
||
27 |
Not Connected |
||
28 |
BMC_TX5 |
Output |
UART transmit serial data output |
29 |
Not Connected |
||
30 |
BMC_RX5 |
Input |
UART transmit serial data input |