|01234567 01234567 01234567 01234567 01234567 01234567                           01234567|
|   'H'  |   'G'  |   'G'  |LBxxxxxx|  Dst   |  Src   |\/\/ fix length data \/\/|  CRC8  |

L Long Packet
 0: short packet
 1: long packet

B Broadcast
 0: single destination
 1: broadcast

CRC8 Cyclic Redundancy Check
 CRC-8 calculated over the entire message.
 Polynomial: ?

x reserved bit