Espressif ESP32 Technical Reference Manual page 419

16 Motor Control PWM (PWM)
16.3 Submodules
16.3.1 Overview
This section lists the configuration parameters of key submodules. For information on adjusting a specific
parameter, e.g. synchronization source of PWM timer, please refer to Section
16.3.1.1 Prescaler Submodule
Configuration parameter:
• Scale the PWM clock according to CLK_160M.
16.3.1.2 Timer Submodule
Configuration parameters:
• Set the PWM timer frequency or period.
• Configure the working mode for the timer:
– Count-Up Mode: for asymmetric PWM outputs
– Count-Down Mode: for asymmetric PWM outputs
– Count-Up-Down Mode: for symmetric PWM outputs
• Configure the the reloading phase (including the value and the phase) used during software and hardware
synchronization.
Espressif Systems
Figure 16-2. Prescaler Submodule
Figure 16-3. Timer Submodule
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16.3.2 for details.
ESP32 TRM (Version 5.2)