Abstract: A system for processing the measuring signals from a sensor 12, consisting of a first micro-controller 10 comprising an input for the sensor data, a first memory 18, 19 and a first processor 16, and a second micro-controller 24 comprising a second memory 26, 30 and a second processor 27. A bus system 22 is provided that connects the first micro-controller 10 with the second micro-controller 24. The first memory 18, 19 stores data and instructions that are configured so as to be adapted to the sensor 12 and enable the conversion of the signals provided by the sensor 12 into data representing the variable to be measured. The first processor 16 is embodied in such a way that it can execute the instructions stored in the first memory 18, and thereby convert in real-time the measured signals of the sensor 12 into data that represent the measured variable, and transfer these data by way of the bus system 22 to the second micro-controller 24.

Abstract: A microcontroller including a memory 10 and further electronic components configured capable of functioning as parts of a state machine 14, and an addressing circuit 20, a state register 25 and a data transfer circuit 22. The input of the addressing circuit 20 forms the input of the state machine 14, the output of the state register 25 forms the output of the state machine 14. The data transfer circuit 22 is connected to the addressing circuit 20, memory 10 and state register 25 in thus enabling the memory 10 of the microcontroller to be made use of for efficiently memorizing the changing state of the state machine.

Abstract: The invention relates to phase and frequency-locked loop circuits (PLL and FLL circuits) with a controllable tracking oscillator whose signal phase relationship or frequency, respectively, is influenced by an external parameter, a reference oscillator, as well as a phase or frequency comparator, the output signal of which is used to control the tracking oscillator in such a way that any phase or frequency errors are reduced. The invention provides for an element for the measurement of the external parameter (such as a microprocessor) which is capable of receiving a signal representing the output signal of the phase or frequency comparator, and convert it into a measurement value that represents the present value of the external parameter. This external parameter can, for example, represent the ambient temperature or the supply voltage of the tracking oscillator.

Abstract: A clock generator contains a reference oscillator (10), a digital closed delay chain (12), a digital frequency divider (14) and a digital phase comparator (16). The frequency divider (14) is connected between the output of the adjustable delay chain (12) and one input of the phase comparator (16). The output of the reference oscillator (10) is connected to a further input of the phase comparator (16). Between the output of the phase comparator (16) and the delay chain (12) a digital up-down counter (18) is connected, the counting direction of which is determined by the output signal of the phase comparator (16) and by means of which the corresponding length of the delay chain (12) is adjustable.

Abstract: A microprocessor or micro-controller of a module design and adapted for low power is described. Each of the modules is addressed and controlled by the CPU in the same way. All assembler instructions and all address modes can be applied to each module. Also, all 16 registers of the CPU are identical in character and can be used with each of the seven address modes. One such device is available in a 4K Byte or 8K Byte ROM, EPROM or RAM version (for prototyping). The high precision 12-bit A/D converter (which can be expanded to 14 bits without additional components) is combined with an LDC drive to output measurement results; the FET driver to switch on loads; the 8-bit Timer/Counter; several I/O ports which accept interrupts; and a watchdog which guarantees safe operation during unexpected events. Up to 16 nested interrupt levels (7 used in the first product) are active during all Processor/Power modes to capture various external events or timer results.