IWR1642 mmwdemo_cfg中的代码解析

typedef enum MMWave_DFEDataOutputMode_e
{
    /**
     * @brief   The DFE is operating in Frame mode
     */
    MMWave_DFEDataOutputMode_FRAME      = 0xA0000000U,

    /**
     * @brief   The DFE is operating in continuous mode
     */
    MMWave_DFEDataOutputMode_CONTINUOUS,

    /**
     * @brief   The DFE is operating in advanced frame mode
     */
    MMWave_DFEDataOutputMode_ADVANCED_FRAME
}MMWave_DFEDataOutputMode;

请问这几行代码是什么意思