3.3 Optional Block(s)

Table 3-3. Optional Block(s)
Data CRC-field
16 or ((L – 9) MOD 16) 2-bytes
  • The L-field (length) excludes Cyclic Redundancy Check (CRC) bytes and the L-field itself.
  • Multi-byte data (M-field and A-field) initially transmit Least Significant Byte (LSB).
  • The CRC polynomial is x16 + x13 + x12 + x11 + x10 + x8 + x6 + x5 + x2 + 1, with 0 as an initial value. The final CRC is complemented. Firstly, the CRC fields send the Most Significant Byte (MSB).
  • Each byte is Most Significant bit (MSb)-aligned.