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EM357-RTR Folha de dados(PDF) 138 Page - List of Unclassifed Manufacturers

Nome de Peças EM357-RTR
Descrição Electrónicos  High-Performance, Integrated ZigBee/802.15.4 System-on-Chip
PDF  240 Pages
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Fabricante Electrônico  ETC2 [List of Unclassifed Manufacturers]
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EM357-RTR Folha de dados(HTML) 138 Page - List of Unclassifed Manufacturers

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EM351 / EM357
9.3.9.3
PWM Center-Aligned Mode
Center-aligned mode is active except when the TIM_CMS bits in the TIMx_CR1 register are 00 (all
configurations where TIM_CMS is non-zero have the same effect on the OCyREF/OCy signals). The compare flag
is set when the counter counts up, when it counts down, or when it counts up and down, depending on the
TIM_CMS bits configuration. The direction bit (TIM_DIR) in the TIMx_CR1 register is updated by hardware and
must not be changed by software. Refer to the Center-Aligned Mode (Up/Down Counting) section for more
information.
Figure 9-23 shows some center-aligned PWM waveforms in an example where:
TIMx_ARR = 8
PWM mode is the PWM mode 1
The output compare flag is set when the counter counts down corresponding to the center-aligned mode 1
selected for TIM_CMS = 01 in the TIMx_CR1 register
Figure 9-23. Center-Aligned PWM Waveforms (ARR = 8)
9-18
120-035X-000D
Preliminary



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