Controller-area network (CAN)-controller with test function e.g. for industry, such as for motor vehicle electrically powered units unified control, prepares re-sync function via CAN- protocol

摘要

A Controller-area network (CAN)- controller has a control unit for control of whether a signal flank detection circuit has detected the serial input signal for effecting e.g. the re-sync function in the re-sync unit. A re-sync function is prepared via a CAN-protocol with regard to the serial signal in concordance with the control unit's output signal. The Can-controller can be installed in a single-chip microcomputer as a separate module where the signal is delayed via a signal processing circuit between the input terminal, which receives a serial signal from the CAN- controller, and the CAN-module, which carries out different types of its functions. Three independent claims are given for the CAN- controller design.