51.3.1 Clocks

All clocks are controlled by the PMC, which is a part of the system controller.

All peripherals are located on APB Client (APS) matrix, clocked by MCK1, except CPKCC, on APB0 on CPU System and Security (CSS) matrix which is clocked by MCK0.

Note: The MCK0 frequency is directly related to the CPU clock, so any change on the CPU clock impacts MCK0.

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