The UPDI header is dedicated for the user to reprogram the ATtiny817. It is a 1.27 mm pitch 10-pin header, which can be directly connected to the Atmel-ICE.
Note: For Atmel-ICE, use the AVR® port to connect it.
| Pin | Name |
|---|---|
| 1 | NC |
| 2 | GND |
| 3 | UPDI_RESET |
| 4 | VCC |
| 5 | RESET |
| 6 | NC |
| 7 | NC |
| 8 | NC |
| 9 | NC |
| 10 | NC |
Figure 1. UPDI Header
Figure 2. UPDI with Atmel-ICE
Figure 3. Schematic of the UPDI
Header
