New answers tagged clocks
3
The answer provided by @Benjoyo is not accurate. The CPU clock can be lower than the system clock, at least in microcontrollers.
As seen in this link, the PIC microcontrollers have the CPU clock, with a rate of $f_{cy}$ (also called instruction cycle frequency), and the system clock, with a rate of $f_{osc}$ (oscillator frequency).
Physically, what ...
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