45.5.2 Clocks

The TCC bus clocks (CLK_TCCx_APB) can be enabled and disabled in the Main Clock module. The default state of CLK_TCCx_APB can be found in the Peripheral Clock Masking section.

A generic clock (GCLK_TCCx) is required to clock the TCC. This clock must be configured and enabled in the Generic Clock Controller before using the TCC.

The generic clocks (GCLK_TCCx) are asynchronous to the bus clock (CLK_TCCx_APB). Due to this asynchronicity, writing certain registers will require synchronization between the clock domains. Refer to 45.6.7 Synchronization for further details.