The Overflow (OVFLO) field in the Data
Output and Status channels is only available when the Scaled arithmetic is used.
OVFLO is driven High during unloading if any point in the data frame
overflowed. For a multichannel core, there is a separate OVFLO field for each
channel.
When an overflow occurs in the core, the data is wrapped rather than saturated, resulting in the transformed data becoming unusable for most applications.