To set a data breakpoint:
Configure Breakpoint Settings
Choose a data memory location by its Symbol or its Address. If choosing by symbol, click on the Symbols button.
If you clicked the Symbols button:
To set a breakpoint on a global variable, select the Global Symbols radio button, then choose the variable name from the list.
To set a breakpoint on a Special Function Register (SFR), select the SFR radio button, then choose the register name from the list.
Click OK when done.
Choose Pass Count Condition
The default Pass Count is Always Break where the program will halt each time the breakpoint's conditions are met.
Break occurs Count instructions after Event will halt the program by a specified number of instructions/instruction cycles after the breakpoint's conditions are met.
Event must occur Count times will halt the program after the breakpoint's conditions have been met a specified number of times.