A microprocessor (1 ) may include a logic circuit (2) for executing instructions of a data processing application. The microprocessor (1 ) may have a timer system (10) which includes a clock counter (101, 102) connected to a clock input (1010,1020) for receiving a clock signal and counting a number of cycles of the clock signal. A clock comparator (105, 106) may be connected the clock counter andto a timer register (103,104) in which a timer reference value can be stored. The clock comparator (105, 106) may compare a number of cycles of the clock signal with the timer reference value and generate a timer signal based on the comparison. The timer system (10) may have a timer output (10O1, 10O2) for outputting timer signal. The timer system (10) may include a control input (11 1, 112) for receiving a digital value representing a measured value of a sensed parameter of a device and a control register (109, 110) in which a control reference value can be stored. A control comparator (107,108) may be connected the control input (11 1, 112). The control comparator (107, 108) may compare the digital value with the reference value and generating a device control signal based on the comparison. The timer system (10) may have a control output (1003, 10O4) for outputting the device control signal to an actuator arranged to control the parameter of the device.