3.3.4.4.2 AVR UPDI Pinout
When designing an application PCB, which includes a Microchip AVR with the UPDI interface, the pinout shown below should be used.
| AVR PORT Pin | Target Pins | Microchip STK600 UPDI Pinout |
|---|---|---|
| Pin 1 (TCK) | ||
| Pin 2 (GND) | GND | 6 |
| Pin 3 (TDO) | UPDI_DATA | 1 |
| Pin 4 (VTG) | VTG | 2 |
| Pin 5 (TMS) | ||
| Pin 6 (nSRST) | ||
| Pin 7 (Not connected) | ||
| Pin 8 (nTRST) | ||
| Pin 9 (TDI) | ||
| Pin 10 (GND) |