struct _unnamed_1553// Size=0xc
{
    unsigned long MessageAddressHigh;// Offset=0x0 Size=0x4
    unsigned long MessageAddressLow;// Offset=0x4 Size=0x4
    unsigned short MessageData;// Offset=0x8 Size=0x2
    unsigned short Reserved;// Offset=0xa Size=0x2
};