Method and circuit arrangement for incrementing and decrementing events by means of an up/down counter

摘要

Known counters of this type are not capable of recording event signals which arrive simultaneously in time or overlapping one another. The invention provides a remedy in that the event signals of at least one of the directions of counting are stored and the forwarding of the stored event signals is disabled at the associated inputs during the presence of event signals for the other direction of counting. The invention is particularly applicable to indicating the level of loading of a shift register as buffer memory in the serial data transmission of data packets of different size.