This attribute records information about the verification frames that
have been transmitted to the Test component on the target card. The
following data is shown for each priority level:
the number of frames that have been tested,
the number of frames that had incorrect bits when returned.
The attribute's values wrap around to zero when they exceed the
maximum permitted value.
Note: Verification frames that are not returned at all, or are returned
too late, are considered 'lost' and are not counted in either of the
above values. Frame loss statistics are recorded in the
loadingFrmData attribute.