The Embedded Debugger acts as a Virtual Com Port gateway by using one of the ATtiny817 UARTs.
Table 1. Virtual COM Port
Connections
| ATtiny817 Pin |
Function |
Shared Functionality |
| PB2 |
UART TXD (ATtiny817 TX
line) |
mEDBG CDC RX and J202 |
| PB3 |
UART RXD (ATtiny817 RX
line) |
mEDBG CDC TX and J202 |