Family, die, and package information appears in the right corner of the status bar. Additionally, the status bar displays information on commands, pins, and error messages.
To see other information in the status bar:
Hold your mouse over a pin in the Package window to see the pin number, instance name, macro cell, and locked or unlocked status.
Hold your mouse over a toolbar button or a menu command to see a short description of that command.
Error messages provide details about invalid assignment attempts. Choose Extended Error Message from the Help menu for more information.