F280049_epwm模块，文档说明矛盾

在例程代码内也有相关的描述

//*****************************************************************************
//
//! Values that can be passed to EPWM_setDigitalCompareEventSource() as the
//! \e dcEventSource parameter.
//
//*****************************************************************************
typedef enum
{
    //! signal source is unfiltered (DCAEVT1/2)
    EPWM_DC_EVENT_SOURCE_ORIG_SIGNAL = 0,
    //! signal source is filtered (DCEVTFILT)
    EPWM_DC_EVENT_SOURCE_FILT_SIGNAL = 1
} EPWM_DigitalCompareEventSource;