typedef enum {
    MEIControlInputUSER_0   = MEIXmpControlIOMaskUSER0_IN,
    MEIControlInputUSER_1   = MEIXmpControlIOMaskUSER1_IN,
    MEIControlInputUSER_2   = MEIXmpControlIOMaskUSER2_IN,
    MEIControlInputUSER_3   = MEIXmpControlIOMaskUSER3_IN,
    MEIControlInputUSER_4   = MEIXmpControlIOMaskUSER4_IN,
    MEIControlInputUSER_5   = MEIXmpControlIOMaskUSER5_IN,
    MEIControlInputXESTOP   = MEIXmpControlIOMaskXESTOP,
} MEIControlInput;