MCIO Harness Pinouts
The table below lists the MCIO connector pinouts of the MCIO harness included in the PCIe Auxiliary Kit. For the MCIO connector pinouts on the ConnectX-8 SuperNIC, refer to MCIO Interface.
Additional Electrical Information | Description/Direction | Pin | Pin | Description/Direction | Additional Electrical Information |
GND | A1 | B1 | GND | ||
PETp0 | A2 | B2 | PERp0 | ||
PETn0 | A3 | B3 | PERn0 | ||
GND | A4 | B4 | GND | ||
PETp1 | A5 | B5 | PERp1 | ||
PETn1 | A6 | B6 | PERn1 | ||
GND | A7 | B7 | GND | ||
Logic: Same power requirements as 3V3_AUX in PCIe spec Voltage Level: 3.3V | 3V3_AUX (IN) | A8 | B8 | SMBUS_SCL (IN) | Logic: Open-drain Voltage Level: 3.3V Presence of PU/PD: PU 100k ohm |
Presence of PU/PD: PD termination 42.2 ohm | FLEXIO0_A | A9 | B9 | SMBUS_SDA (BID) | Logic: Open-drain Voltage Level: 3.3V Presence of PU/PD: PU 100k ohm |
GND | A10 | B10 | GND | ||
Logic: PCIe REFCLK IN | REFCLK_A_Dp (IN) | A11 | B11 | PERST_A_N (IN) | Logic: Push-pull, active low Voltage Level: 3.3V |
Logic: PCIe REFCLK IN | REFCLK_A_Dn (IN) | A12 | B12 | CBL_PRES_A (OUT) | Logic: Active low Voltage Level: 3.3V Presence of PU/PD: PD 200 ohm Recommended implementation on System level: PU 100k ohm |
GND | A13 | B13 | GND | ||
PETp2 | A14 | B14 | PERp2 | ||
PETn2 | A15 | B15 | PERn2 | ||
GND | A16 | B16 | GND | ||
PETp3 | A17 | B17 | PERp3 | ||
PETn3 | A18 | B18 | PERn3 | ||
GND | A19 | B19 | GND | ||
PETp4 | A20 | B20 | PERp4 | ||
PETn4 | A21 | B21 | PERn4 | ||
GND | A22 | B22 | GND | ||
PETp5 | A23 | B23 | PERp5 | ||
PETn5 | A24 | B24 | PERn5 | ||
GND | A25 | B25 | GND | ||
Presence of PU/PD: PD termination 42.2 ohm | FLEXIO1_A/REFCLK_B_Dp | A26 | B26 | FLEXIO3_A/I2C_M_SDA_A (NC) | Presence of PU/PD: PD termination 42.2 ohm |
Presence of PU/PD: PD termination 42.2 ohm | FLEXIO2_A/REFCLK_B_Dn | A27 | B27 | FLEXIO4_A/I2C_M_SCL_A (NC) | Presence of PU/PD: PD termination 42.2 ohm |
GND | A28 | B28 | GND | ||
Presence of PU/PD: PD termination 42.2 ohm | FLEXIO7_A | A29 | B29 | PERST_B_N (IN) | Presence of PU/PD: PD termination 42.2 ohm |
Presence of PU/PD: PD termination 42.2 ohm | FLEXIO8_A | A30 | B30 | CBL_PRES_B (OUT) | Presence of PU/PD: PD termination 42.2 ohm |
GND | A31 | B31 | GND | ||
PETp6 | A32 | B32 | PERp6 | ||
PETn6 | A33 | B33 | PERn6 | ||
GND | A34 | B34 | GND | ||
PETp7 | A35 | B35 | PERp7 | ||
PETn7 | A36 | B36 | PERn7 | ||
GND | A37 | B37 | GND | ||
Key | |||||
GND | A38 | B38 | GND | ||
PETp8 | A39 | B39 | PERp8 | ||
PETn8 | A40 | B40 | PERn8 | ||
GND | A41 | B41 | GND | ||
PETp9 | A42 | B42 | PERp9 | ||
PETn9 | A43 | B43 | PERn9 | ||
GND | A44 | B44 | GND | ||
PETp10 | A45 | B45 | PERp10 | ||
PETn10 | A46 | B46 | PERn10 | ||
GND | A47 | B47 | GND | ||
PETp11 | A48 | B48 | PERp11 | ||
PETn11 | A49 | B49 | PERn11 | ||
GND | A50 | B50 | GND | ||
PETp12 | A51 | B51 | PERp12 | ||
PETn12 | A52 | B52 | PERn12 | ||
GND | A53 | B53 | GND | ||
PETp13 | A54 | B54 | PERp13 | ||
PETn13 | A55 | B55 | PERn13 | ||
GND | A56 | B56 | GND | ||
PETp14 | A57 | B57 | PERp14 | ||
PETn14 | A58 | B58 | PERn14 | ||
GND | A59 | B59 | GND | ||
PETp15 | A60 | B60 | PERp15 | ||
PETn15 | A61 | B61 | PERn15 | ||
GND | A62 | B62 | GND | ||