STM32F412XE Datasheet, PDF (35/193 Pages) STMicroelectronics – ARM-Cortex-M4 32b MCU+FPU, 125 DMIPS, 1MB Flash, 256KB RAM, USB OTG FS, 17 TIMs, 1 ADC, 17 comm. interfaces

STM32F412xE/G
Functional overview
3.23.1
3.23.2
3.23.3
Advanced-control timers (TIM1, TIM8)
The advanced-control timers (TIM1/8) can be seen as three-phase PWM generator
multiplexed on 4 independent 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 a 16-bit PWM generator, they have full modulation capability
(0-100%).
The advanced-control timers 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.
General-purpose timers (TIMx)
There are ten synchronizable general-purpose timers embedded in the STM32F412xE/G
(see Table 5 for differences).
• TIM2, TIM3, TIM4, TIM5
The STM32F412xE/G devices include 4 full-featured general-purpose timers: TIM2.
TIM3, TIM4 and TIM5. TIM2 and TIM5 timers are based on a 32-bit auto-reload
up/downcounter and a 16-bit prescaler while TIM3 and TIM4 timers are based on a 16-
bit auto-reload up/downcounter plus a 16-bit prescaler. They all features four
independent channels for input capture/output compare, PWM or one-pulse mode
output. This gives up to 15 input capture/output compare/PWMs
TIM2. TIM3, TIM4 and TIM5 general-purpose timers can operate together or in
conjunction with the other general-purpose timers and TIM1 advanced-control timer via
the Timer Link feature for synchronization or event chaining.
Any of these general-purpose timers can be used to generate PWM output.
TIM2. TIM3, TIM4 and TIM5 channels 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.
• TIM9, TIM10, TIM11, TIM12, TIM13 and TIM14
These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler.
TIM10, TIM11, TIM13 and TIM14 feature one independent channel, whereas TIM9 and
TIM12 have two independent channels for input capture/output compare, PWM or one-
pulse mode output. They can be synchronized with TIM2. TIM3, TIM4 and TIM5 full-
featured general-purpose timers or used as simple time bases.
Basic timer (TIM6, TIM7)
TIM6 and TIM7 timers are basic 16-bit timers. They support independent DMA request
generation.
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