STM32U535NET3QTR datasheet(70/278 Pages) STMICROELECTRONICS

70 / 278 page

Functional overview

STM32U535xx

70/278

DS14217 Rev 1

3.36

Timers and watchdogs

The devices include two advanced control timers, up to seven general-purpose timers, two

basic timers, four low-power timers, two watchdog timers and two SysTick timers.

The table below compares the features of the advanced control, general-purpose and basic

timers.

3.36.1

Advanced-control timers (TIM1, TIM8)

The advanced-control timers can each be seen as a three-phase PWM multiplexed on six

channels. They have complementary PWM outputs with programmable inserted

dead-times. They can also be seen as complete general-purpose timers.

The four independent channels can be used for:

•

Input capture

•

Output compare

•

PWM generation (edge or center-aligned modes) with full modulation capability

(0 - 100%)

•

One-pulse mode output

In Debug mode, the advanced-control timer counter can be frozen and the PWM outputs

disabled in order to turn off any power switches driven by these outputs.

Many features are shared with the general-purpose TIMx timers (described in the next

section) using the same architecture, so the advanced-control timers can work together with

the TIMx timers via the Timer Link feature for synchronization or event chaining.

Table 19. Timer feature comparison

Timer type

Timer

Counter

resolution

Counter

type

Prescaler

factor

DMA

request

generation

Capture/

compare

channels

Complementary

outputs

Advanced

control

TIM1, TIM8

16 bits

Up, down,

Up/down

Any integer

between 1 and

65536

Yes

General-

purpose

TIM2, TIM3,

TIM4, TIM5

32 bits

Up, down,

Up/down

Any integer

between 1 and

65536

Yes

General-

purpose

TIM15

16 bits

Any integer

between 1 and

65536

Yes

General-

purpose

TIM16,

TIM17

16 bits

Any integer

between 1 and

65536

Yes

Basic

TIM6, TIM7

16 bits

Any integer

between 1 and

65536

Yes

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