Question

Configure the clock system:
1. DCO 12 MHz
2. MCLK 12 MHz
3. SMCLK 6 MHz

Answer 1

The question entails configuring a microcontroller's clock system so that the DCO is set to 12 MHz, MCLK matches this at 12 MHz, and SMCLK is half that at 6 MHz, typically achieved by adjusting the clock registers.

Step-by-step explanation:

The question pertains to configuring the clock system for a microcontroller or similar device, where DCO (Digitally Controlled Oscillator) needs to be set to 12 MHz for the main clock frequency (MCLK), and the sub-main clock (SMCLK) needs to be set to 6 MHz.

To achieve this configuration, one would typically need to program the clock system registers within the microcontroller to divide down from the DCO frequency.

As MCLK is directly sourced from the DCO at the same frequency, no division would be needed for the MCLK.

However, to obtain the SMCLK at half the frequency of the DCO, a divide-by-two setting must be applied to the SMCLK configuration. This is a typical task when setting up the system clocks in microcontroller applications, ensuring that different system components operate at the correct speeds.