4.2.4.1 On-Board Debugger Connections

The table below shows the connections between the target and the debugger section. All connections between the target and the debugger are tri-stated as long as the debugger is not actively using the interface. Hence, since there are little contaminations of the signals, the pins can be configured to anything the user wants.

For further information on how to use the capabilities of the on-board debugger, see On-Board Debugger Overview.

Table 4-4. On-Board Debugger Connections
ATtiny3217 PinDebugger PinFunctionShared Functionality
PB3CDC TXUART0 RX (ATtiny3217 RX line)Edge connector
PB2CDC RXUART0 TX (ATtiny3217 TX line)Edge connector
PA0DBG0UPDIEdge connector
PA3DBG1GPIO1Edge connector
PB7DBG2GPIO0Edge connector
(PA0)DBG3RESET (J202 not connected by default)Edge connector