Data transferring device e.g. universal asynchronous receiver/transmitter, for security-controller chip, has monitoring unit to monitor whether counter values satisfy condition and to output alarm signal if condition is not satisfied

摘要

The device (100) has a data sending unit for sending data via a data output (100b), which is connected with an external connection. A counter (170) is provided for decrementing/incrementing counter values for data passing a data input. A monitoring unit (180) monitors whether the counter values satisfy a predetermined condition, and outputs an alarm signal if the predetermined condition is not satisfied. Independent claims are also included for the following: (1) a method for sending data via a data output (2) a computer program with a program code for executing a method for sending data via a data output.