2.4.2 Implementation Example

Figure 2-2. 32.768 kHz Crystal Oscillator Connection
Figure 2-3. Main Crystal Oscillator Connection
Figure 2-4. Processor Configuration

In the above design schematic, the SAMA7G54 MPU features the 24 MHz DSC1001DI5-024.0000T MEMS oscillator as default main clock source and the NX2012SA-32.768K-STD-MUB-1 crystal loaded with 18 pF capacitors to provide the 32.786 kHz slow clock. Alternatively, by removing the R11 and R12 resistors and populating the corresponding parts associated with Y3, the ABM8G-24.000MHZ-18-D2Y-T 24 MHz crystal oscillator can be used as main clock source.