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STM32U545NET6QTR 数据表(PDF) 74 Page - STMicroelectronics |
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STM32U545NET6QTR 数据表(HTML) 74 Page - STMicroelectronics |
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74 / 283 page  Functional overview STM32U545xx 74/283 DS14216 Rev 1 3.39.1 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. 3.39.2 General-purpose timers (TIM2, TIM3, TIM4, TIM5, TIM15, TIM16,TIM17) There are up to seven synchronizable general-purpose timers embedded in the STM32U545xx devices (see Table 20 for differences). Each general-purpose timer can be used to generate PWM outputs, or act as a simple time base. • TIM2, TIM3, TIM4 and TIM5 They are full-featured general-purpose timers with 32-bit auto-reload up/downcounter and 16-bit prescaler. These timers feature four independent channels for input capture/output compare, PWM or one-pulse mode output. They can work together, or with the other general-purpose timers via the Timer Link feature for synchronization or event chaining. The counters can be frozen in Debug mode. All have independent DMA request generation and support quadrature encoders. General- purpose TIM15 16 bits Up Any integer between 1 and 65536 Yes 2 1 General- purpose TIM16, TIM17 16 bits Up Any integer between 1 and 65536 Yes 1 1 Basic TIM6, TIM7 16 bits Up Any integer between 1 and 65536 Yes 0 No Table 20. Timer feature comparison (continued) Timer type Timer Counter resolution Counter type Prescaler factor DMA request generation Capture/ compare channels Complementary outputs |
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