| ECU E40 |
| Back of the board |
| Power and ground |
| BDM connection |
| BDM connection for slave |
| BDM connector of USB BDMNT NT | BDM connector of u_link NT | E40 |
| Pin 1 | None | DS |
| Pin 2(Do not connect for slave) | Pin 4(Purple)(Do not connect for slave) | BERR (Do not connect for slave) |
| Pin 3 | Pin 2(White) | GND |
| Pin 4 | Pin 6(Green) | DSCLK |
| Pin 6 | Pin 3(Gray) | FREEZE |
| Pin 7 | Pin 5(Blue) | RESET |
| Pin 8 | Pin 10(Brown) | DSI |
| Pin 10 | Pin 8(Orange) | DSO |
