20 Timer/Counter 0, 1, 3, 4 Prescalers

The 8-bit Timer/Counter0 (TC0) and the 16-bit Timer/Counters 1, 3, 4 (TC1, TC3, and TC4) share the same prescaler module, but the Timer/Counters can have different prescaler settings. The following description applies to TC0, TC1, TC3, and TC4.