Apparatus and method for serial data transfer of a position

Arrangement for serial data transmission between a position measuring device (1) and a processing unit (4), wherein - the position measuring device (1) has an output port (3), bear against which measured position values, the isochronous applied to the clock input of the Ausgabebeausteins (3) clock pulses serially via a data line (5) to the processing unit (4) are transmitted; - further comprises the position measuring device (1) comprises a memory (9) in which specific parameters of the position measuring device (1) are stored, which can be transmitted also via the said data line (5) serially and cyclically in synchronism with the processing unit (4), whereby the processing unit (4) is matched to these parameters; - a clock (15) in the processing unit (4) is arranged, wherein the clock pulse sequences of this clock (15) can be fed via a clock line (6) to the clock input of the output device (3), and at the serial output of the output device (3) the data line (5) is connected, whereby the position measurement values ​​and the parameters for isochronous bit serial clock pulse sequence on this data line (5) to the processing unit (4) ...