The application core clocks can be scaled from their respective HFCLK clocks.
The application core clock HCLK128M can at any time be scaled from the HFCLK128M clock using the HFCLKCTRL register.
The HCLK192M clock can be scaled from the HFCLK192M clock using the HFCLK192MCTRL register.
Note: Settings Div1 and Div2 in HFCLK192MCTRL
register will result in increased power consumption.
The ACLK audio clock cannot be scaled from the HFCLKAUDIO clock. Instead, its frequency can be configured in the relevant peripherals. Refer to Audio oscillator for more information on audio clock and related peripherals.
Note: It is possible to scale the application core clocks at any time, for instance when a clock has already has been started,
without having to stop it first.