Espressif Systems ESP32 Technical Reference Manual page 81

5.4 Registers
31
0 0 0 0 0 0 0
LEDC_APB_CLK_SEL This bit is used to set the frequency of SLOW_CLK. (R/W)
0: 8 MHz;
1: 80 MHz.
Espressif Systems
Register 5.19: LEDC_CONF_REG (0x0190)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
80 ESP32 Technical Reference Manual V1.0
5 LED_PWM
1
0 0 0 0 0 0 0 0
0
0 Reset