Functional overview

The clock system is built up as a chain composed from different building blocks which allow different function parts for the complete chain.

The building blocks as shown in the following figure are:

• Basic clock generation with internal and external oscillators (Clock Source)

• Clock speed up-scaling with phase locked loops (

  PLL

  )

• Clock distribution with clock control units (

  CCU

  )

• Individual clock configuration within other functional blocks

Figure 1. Clock tree

A device specific overview can be found in the device specific section.