Microprocessor for controlling operation of LCD, has non maskable interruption input connected to software, where software enables microprocessor to generate null jitter periodic signal in response to reception of clock signal

摘要

The microprocessor (20) has a non maskable external interruption input (22) connected to a clock (21) that periodically generates pulse in the form of a clock signal (24). The input is connected to software (3'). The software enables the microprocessor to generate a null jitter periodic signal (10') in response to reception of the clock signal on the interruption input when the software is executed by the microprocessor.