(Type 1) REQUET WRITE BYTES
Data 6 -Flash Address LSB
Data 7 -Flash Address
Data 8 -Flash Address
Data 9 -Flash Address MSB
Data 10 onward - Message Data Bytes ( Max 64 bytes)
Note that the number of bytes that are included can be calculated from the message length.
In the case of a request to write bytes, then the data is the data to be written to the unit.
In the case of a read response, then the data is the data read back from the unit’s memory, in the case that the memory is inaccessible, then no bytes should be returned in the payload.