Click on the symbol at the top of the Registers pane to see the pane menu.
Click the following links to see pop-up descriptions of the options:
Copy Pane
Update Window
Automatic Update
Unsigned Decimal
Hexadecimal
Hexadecimal with Leading Zeros
Show Enumerations as Values
RealView
Debugger
symbol at the top of the
Registers pane to see the pane
menu.