Datasheet
Functional overview STM32H743xI
36/226 DocID030538 Rev 3
3.28.2 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:
• In
put 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 th
e TIMx timers via the Timer Link
feature for synchronization or event chaining.
TIM1 and TIM8 support independent DMA request generation.
3.28.3 General-purpose timers (TIMx)
There are ten synchronizable general-purpose timers embedded in the STM32H743xI
devices (see Table 5 for differences).
• TIM2, TIM3, TIM4, TIM5
The
devices include 4 full-featured general-purpose timers: TIM2, TIM3, TIM4 and
TIM5. TIM2 and TIM5 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 16 input capture/output
compare/PWMs on the largest packages.
TIM2, TIM3, TIM4 and 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.
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.
• 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
full-featured general-purpose timers or used as simple timebases.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.