struct datastruct{

  unsigned short header[2];
  unsigned short status;
  unsigned short hitmap;      
  unsigned short regist[6];   
  unsigned short shift[16];     
  unsigned short counters[16];  
  unsigned short coinc[8];
  unsigned short trigg;    
  unsigned short clock[2];        
  unsigned short temp[2];    
  unsigned short DAC[16];
  unsigned short CRC;
};