The J202 header enables connection to the ATmega328P Xplained Mini power system.
| J202 Pin | Signal | Description |
|---|---|---|
| 1 | NC | |
| 2 | VCC_TARGET | The power source selected for the target (selected by J301) |
| 3 | RESET_SENSE | This is a RESET signal monitored by the mEDBG. If pulled low, the target RESET line will be pulled low by the mEDBG. The ATmega32U4 internal pull-up is enabled. This signal is not available during debugging. |
| 4 | VCC_P3V3 | The 3.3V regulator output |
| 5 | VCC_P5V0 | The selected power source (VIN or VBUS selected by J300) |
| 6 | GND | |
| 7 | GND | |
| 8 | VCC_VIN | The external power source connection |