Byte order

Byte order

The byte order determines in which order the bytes of a value are transmitted on a bus or are stored in a memory. The hexadecimal representation for a decimal value of 100 is $64. The 16-bit value in Motorola byte order format is $0064, in Intel byte order format is $6400. Both bytes are exchanged. A clear-cut specification of the byte order for coded values is necessary, because the tester and the ECUs can use different byte orders. The D-server can adjust the byte order of data automatically. See also Intel byte order and Motorola byte or­der.