A processing arrangement having a first processing component and a second processing component is provided. The first component has a first output memory and a second output memory and a control device using the first memory storing a value to be output and the second memory stores a value that is based according to a prescribed function on the value. The control device stores a new value in the first memory whenever the second component has read a value stored in the first memory. The second component has a reading device reading the values stored in the first and second memories, and a processing device that checks whether the value read from the second memory is based according to the prescribed function on the value read from the first memory and, depending on the result, to process the value read from the first memory.