Constant esp_idf_svc::sys::emac_rmii_clock_mode_t_EMAC_CLK_EXT_IN

pub const emac_rmii_clock_mode_t_EMAC_CLK_EXT_IN: u32 = 1; // 1u32

@brief Input RMII Clock from external. EMAC Clock GPIO number needs to be configured when this option is selected.

@note MAC will get RMII clock from outside. Note that ESP32 only supports GPIO0 to input the RMII clock.