1.4.3.6 PAL_TX_TIME_MODE Enum

typedef enum {
    /* Absolute TX scheduling mode (absolute TX time specified) */
    PAL_TX_MODE_ABSOLUTE = 0,
    /* Relative TX scheduling mode (delay for TX time specified) */
    PAL_TX_MODE_RELATIVE = 1,
    /* Cancel TX scheduling mode (cancel TX) */
    PAL_TX_MODE_CANCEL   = 2,
} PAL_TX_TIME_MODE;