Developing a USB token-packet's data-bytes for deviceID=9, endpoint=2 


   packet-bits (lsb-to-msb):  0 0 0 0 0 - 0 0 1 0 - 0 0 0 1 0 0 1 

   packet-bits (msb-to-lsb):  1 0 0 1 0 0 0 - 0 1 0 0 - 0 0 0 0 0 


 Now perform the 3-step CRC-5 computation: 

   STEP 1: complement the five leading bits 

           1001000010000000 
    xor    11111 
          ------------------ 
           0110100010000000 

   STEP 2: perform the polynomial long-division 

         ___________________ 
  100101 ) 0110100010000000 
           000000 
          -------- 
            110100010000000 
            100101 
           -------- 
             10001010000000 
             100101 
            -------- 
              0011110000000 
              000000 
             -------- 
               011110000000 
               000000 
              -------- 
                11110000000 
                100101 
               -------- 
                 1100100000 
                 100101 
                -------- 
                  101110000 
                  100101 
                 -------- 
                   01011000 
                   000000 
                  -------- 
                    1011000 
                    100101 
                   -------- 
                     010010 
                     000000 
                    -------- 
                      10010 

 STEP 3: complement the five remainder-bits 

                      10010 
                 xor  11111 
                     ------- 
                      01101 


 Now we merge this CRC with the token-packet's data:

   packet-bits (lsb-to-msb):  1 0 0 1 0 0 0 - 0 1 0 0 - 0 1 1 0 1 

   packet-bits (msb-to-lsb):  1 0 1 1 0 - 0 0 1 0 - 0 0 0 1 0 0 1 


 The token-packet's data-bytes (with 5-bit CRC included):  0xB109 

 The token-packet data-bytes in little-endian byte-order: 09 B1