Using flat patterns to write or verify registers and fields is a powerful way to control a DUT. Users can use verify patterns to confirm a DUT is in the expected state before writing any registers or fields. They can also use verify patterns after write patterns to confirm that register writes are persistent.

Flat patterns enable tools like Shmoo plots, which sweep power or timing while checking register or field values. You can use History RAM with flat patterns to debug the DUT register interface, simplifying the DUT debugging process.