ST STM32F446 Series

General-purpose timers (TIM2 to TIM5) RM0390
522/1328 RM0390 Rev 4
Figure 158. General-purpose timer block diagram
17.3 TIM2 to TIM5 functional description
17.3.1 Time-base unit
The main block of the programmable timer is a 16-bit/32-bit counter with its related auto-
reload register. The counter can count up. The counter clock can be divided by a prescaler.
The counter, the auto-reload register and the prescaler register can be written or read by
software. This is true even when the counter is running.
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