The EVK1100 provides three clock inputs for AT32UC3A0512
-
Main clock oscillator on OSC0: XC1 at 12MHz
-
A spare clock oscillator on OSC1: XC2 at 12 MHz
-
A RTC clock XC5 at 32,768 Khz
Pinout
The CLOCK Interface follows the pinout:
| CLOCK Interface | GPIO Name | Alternate function used |
|---|---|---|
| XC1 | PC2, PC3 | Xin0, Xout0 |
| XC2 | PC4, PC5 | Xin1, Xout1 |
| XC5 | PC0, PC1 | Xin32, Xout32 |
Figure 1. Hardware Schematic
