A few test points covering the power supply block have been placed on the AT32UC3C-EK for the verification of important signals.
| Designation | Feature |
|---|---|
| TP12-14 | Input voltage level after D1 when the J1 external Power Supply is used |
| TP20-21 | Input voltage level after D2 when the J2 external Power Supply is used |
| TP22-23 | Input voltage for 3.3V regulator. 5V nominal |
| TP24-25 | Input voltage for all board components. 3.3V nominal |
| TP28-31 | Input voltage for all board components except Atmel AT32UC3C0512C and Atmel AT42QT1080. Should be 3.3V nominal |
| TP27-30 | Input voltage for the AT32UC3C0512C VDDIO pin. Should be 3.3V nominal |
| TP26-29 | Input voltage for the AT32UC3C0512C VDDIN pin. Should be 3.3V nominal |
| TP32-33 | Input voltage for the AT32UC3C0512C VDDANA pin. Should be 3.3V nominal |
| TP13 | GND |