> 4.2.6 | Frame Checking Sequence Field (FCS)

> The Frame Checking Sequence (FCS) is computed with the address, control and length fields. It is a field added to the end of a frame that contains transmission error-checking information. This field contains a value which is calculated by the module. The host application performs the same calculation. If the calculation of the host application does not match the result sent by the module, the packet is considered corrupt and discarded. An FCS calculation is made for each packet.