STM32F205RC datasheet(31/178 Pages) STMICROELECTRONICS

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STM32F20xxx

Functional overview

177

If configured as standard 16-bit timers, they have the same features as the general-purpose

TIMx timers. If configured as 16-bit PWM generators, they have full modulation capability (0-

100%).

The TIM1 and TIM8 counters can be frozen in debug mode. Many of the advanced-control

timer features are shared with those of the standard TIMx timers which have the same

architecture. The advanced-control timer can therefore work together with the TIMx timers

via the Timer Link feature for synchronization or event chaining.

3.20.2

General-purpose timers (TIMx)

There are ten synchronizable general-purpose timers embedded in the STM32F20x devices

(see Table 5 for differences).

TIM2, TIM3, TIM4, TIM5

The STM32F20x include 4 full-featured general-purpose timers. TIM2 and TIM5 are 32-bit

timers, and TIM3 and TIM4 are 16-bit timers. The TIM2 and TIM5 timers are based on a 32-

bit auto-reload up/downcounter and a 16-bit prescaler. The TIM3 and TIM4 timers are based

on a 16-bit auto-reload up/downcounter and a 16-bit prescaler. They all feature 4

independent channels for input capture/output compare, PWM or one-pulse mode output.

This gives up to 16 input capture/output compare/PWMs on the largest packages.

The TIM2, TIM3, TIM4, TIM5 general-purpose timers can work together, or with the other

general-purpose timers and the advanced-control timers TIM1 and TIM8 via the Timer Link

feature for synchronization or event chaining.

The counters of TIM2, TIM3, TIM4, TIM5 can be frozen in debug mode. Any of these

general-purpose timers can be used to generate PWM outputs.

TIM2, TIM3, TIM4, TIM5 all have independent DMA request generation. They are capable

of handling quadrature (incremental) encoder signals and the digital outputs from 1 to 4 hall-

effect sensors.

TIM10, TIM11 and TIM9

These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler. TIM10 and

TIM11 feature one independent channel, whereas TIM9 has two independent channels for

input capture/output compare, PWM or one-pulse mode output. They can be synchronized

with the TIM2, TIM3, TIM4, TIM5 full-featured general-purpose timers. They can also be

used as simple time bases.

TIM12, TIM13 and TIM14

These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler. TIM13 and

TIM14 feature one independent channel, whereas TIM12 has two independent channels for

input capture/output compare, PWM or one-pulse mode output. They can be synchronized

with the TIM2, TIM3, TIM4, TIM5 full-featured general-purpose timers.

They can also be used as simple time bases.

3.20.3

Basic timers TIM6 and TIM7

These timers are mainly used for DAC trigger and waveform generation. They can also be

used as a generic 16-bit time base.

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