Patent ID: 8327036

Claim:
A method of passing instructions between a microprocessor host station and a portable electronic device linked by a data transmission, by means of a transaction initiated by a data packet read/write command, generated within the host station, by a removable data storage unit management program, where a data packet read/write command is transmitted to the portable electronic device in a standardized binary code format comprising an index defining a read/write command type and an argument having one or more parameters specifying a manner of applying the read/write command type defined in the index to the portable electronic device, wherein an instruction is signaled to the portable electronic device by means of an instruction presence parameter being placed in the argument of a write command and the instruction presence parameter pointing to a preexisting-file address, and wherein the portable device detects the instruction presence parameter, disables the execution of the write command and replaces it with a search for an instruction followed by an execution of the instruction found.