3.4.1.1 Debug COM Port Interface

The debug interface is enabled by default and can be disabled by placing a jumper on connector J19. The UART signals can be accessed via the mikroBUS1 connector or via the integrated USB-UART bridge provided by J-Link-OB.

Figure 3-40. Debug COM Port Interface

The table below describes the COM port debug interface signals.

Table 3-23. Debug COM Port PIOs Signal Descriptions
PIOMnemonicSharedSignal Description
PB26URXD0DEBUGReceive data
PB27UTXD0DEBUGTransmit data