STM32H723VG datasheet(42/227 Pages) STMICROELECTRONICS

42 / 227 page

Functional overview

STM32H723xE/G

42/227

DS13313 Rev 2

3.31.1

Advanced-control timers (TIM1, TIM8)

The advanced-control timers (TIM1, TIM8) can be seen as three-phase PWM generators

multiplexed on 6 channels. They have complementary PWM outputs with programmable

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

Their 4 independent channels can be used for:

•

Input capture

•

Output compare

•

PWM generation (Edge- or Center-aligned modes)

•

One-pulse mode output

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 advanced-control timer can work together with the TIMx timers via the Timer Link

feature for synchronization or event chaining.

TIM1 and TIM8 support independent DMA request generation.

3.31.2

General-purpose timers (TIMx)

There are ten synchronizable general-purpose timers embedded in the STM32H723xE/G

devices (see Table 4: Timer feature comparison for differences).

•

TIM2, TIM3, TIM4, TIM5, TIM23, TIM24

The devices include 4 full-featured general-purpose timers: TIM2, TIM3, TIM4, TIM5,

TIM23 and TIM24. TIM2, TIM5, TIM23 and TIM24 are based on a 32-bit auto-reload

up/downcounter and a 16-bit prescaler while TIM3 and TIM4 are based on a 16-bit

auto-reload up/downcounter and a 16-bit prescaler. All timers feature 4 independent

channels for input capture/output compare, PWM or One-pulse mode output. This

gives up to 24 input capture/output compare/PWMs on the largest packages.

TIM2, TIM3, TIM4, TIM5, TIM23 and TIM24 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.

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

TIM2, TIM3, TIM4, TIM5, TIM23, and TIM24 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.

•

TIM12, TIM13, TIM14, TIM15, TIM16, TIM17

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

TIM13, TIM14, TIM16 and TIM17 feature one independent channel, whereas TIM12

and TIM15 have two independent channels for input capture/output compare, PWM or

One-pulse mode output. They can be synchronized with the TIM2, TIM3, TIM4, TIM5,

TIM23, and TIM24 full-featured general-purpose timers or used as simple time bases.

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