SYSTEM UND VERFAHREN ZUM KALIBRIEREN DER TAKTFREQUENZ EINER TAKTGEBEREINHEIT ÜBER EINE DATENLEITUNG

In order to further develop a system ( 100 ) and a method for calibrating the clock frequency of at least one clock generator unit ( 38 ), in particular oscillator unit, that is assigned to at least one transmitting/receiving module ( 30 ), wherein-the transmitting/receiving module ( 30 ) communicates with at least one microcontroller unit ( 10 ) over at least one data line ( 20 ) and-the clock generator unit ( 38 ) is assigned at least one calibration unit ( 36 ), in such a manner that with significantly reduced system costs the clock frequency of the clock generator unit ( 38 ) can be calibrated with very high accuracy, it is proposed that-in order to calibrate the clock frequency of the clock generator unit ( 38 ) at least one calibration unit ( 36 ) is assigned to the clock generator unit 38 ), -the calibration unit ( 36 ) can be set in binary terms by means of at least one command signal (COM) via the data line ( 20 ), -the clock generator unit ( 38 ) is assigned at least one binary counter ( 34 ) that is clocked by the clock generator unit ( 38 ), in particular by the output frequency (fout) of the clock generator unit ( 38 ) and-within the transmitting/receiving module ( 30 ) there is at least one control logic mechanism ( 32 ) which is connected (STA, OFL or SET) to the calibration unit ( 36 ) or to the binary counter ( 34 ), which control logic mechanism, following reception of the command signal (COM), resets the binary counter ( 34 ), starts it (STA) and awaits the expiry or overflow (OFL) of the binary counter ( 34 ).