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STM8AF/P6389 数据表(PDF) 21 Page - STMicroelectronics |
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STM8AF/P6389 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 116 page  DocID031156 Rev 1 21/116 STM8AF6388 Product overview 114 TIM1 - advanced control timer This is a high-end timer designed for a wide range of control applications. With its complementary outputs, dead-time control and center-aligned PWM capability, the field of applications is extended to motor control, lighting and bridge driver. • 16-bit up, down and up/down AR (auto-reload) counter with 16-bit fractional prescaler. • Four independent CAPCOM channels configurable as input capture, output compare, PWM generation (edge and center aligned mode) and single pulse mode output • Trigger module which allows the interaction of TIM1 with other on-chip peripherals. In the present implementation it is possible to trigger the ADC upon a timer event. • External trigger to change the timer behavior depending on external signals • Break input to force the timer outputs into a defined state • Three complementary outputs with adjustable dead time • Interrupt sources: 4 x input capture/output compare, 1 x overflow/update, 1 x break TIM2, TIM3 - 16-bit general purpose timers • 16-bit auto-reload up-counter • 15-bit prescaler adjustable to fixed power of two ratios 1…32768 • Timers with three or two individually configurable CAPCOM channels • Interrupt sources: 2 or 3 x input capture/output compare, 1 x overflow/update 5.7.5 Basic timer The typical usage of this timer (TIM4) is the generation of a clock tick. • 8-bit auto-reload, adjustable prescaler ratio to any power of two from 1 to 128 • Clock source: master clock • Interrupt source: 1 x overflow/update Table 4. Advanced control and general purpose timers Timer Counter width Counter type Prescaler factor Channels Inverted outputs Repetition counter trigger unit External trigger Break input TIM1 16-bit Up/down 1 to 65536 4 3 Yes Yes Yes Yes TIM2 16-bit Up 2n n = 0 to 15 3 None No No No No TIM3 16-bit Up 2n n = 0 to 15 2 None No No No No Table 5. TIM4 Timer Counter width Counter type Prescaler factor Channels Inverted outputs Repetition counter trigger unit External trigger Break input TIM4 8-bit Up 2n n = 0 to 7 0 None No No No No |
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