STM32WB50CG datasheet(40/119 Pages) STMICROELECTRONICS

40 / 119 page

Functional overview

STM32WB50CG STM32WB30CE

40/119

DS13047 Rev 5

3.16

Timers and watchdogs

The STM32WB50CG and STM32WB30CE include one advanced 16-bit timer, one general-

purpose 32-bit timer, two 16-bit basic timers, two low-power timers, two watchdog timers

and a SysTick timer. Table 11 compares the features of the advanced control, general

purpose and basic timers.

3.16.1

Advanced-control timer (TIM1)

The advanced-control timer can 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 to

100%)



One-pulse mode output

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

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

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

Section 3.16.2) 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.

3.16.2

General-purpose timers (TIM2, TIM16, TIM17)

There are up to three synchronizable general-purpose timers embedded in the

STM32WB50CG and STM32WB30CE (see Table 11 for differences). Each general-purpose

timer can be used to generate PWM outputs, or act as a simple time base.



TIM2

–

Full-featured general-purpose timer

Table 11. Timer features

Timer

type

Timer

Counter

resolution

Counter

type

Prescaler

factor

DMA

request

generation

Capture/

compare

channels

Complementary

outputs

Advanced

control

TIM1

16-bits

Up, down,

Up/down

Any integer

between 1

and 65536

Yes

General

purpose

TIM2

32-bits

Up, down,

Up/down

4No

General

purpose

TIM16

16-bits

General

purpose

TIM17

16-bits

Low power

LPTIM1

LPTIM2

16-bits

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