Renesas R0E521000CPE00 User Manual page 84

R0E521000CPE00 User's Manual
Note on Debugging in CPU Rewrite Mode:
When you debug a program in CPU rewrite mode, check "Debug the program using CPU Rewrite Mode" in the
MCU tab of the Init dialog box of the emulator debugger.
Notes on Restrictions on Debugging in CPU Rewrite Mode:
If you check "Debug the program using CPU Rewrite Mode" in the MCU tab of the Init dialog box of the
emulator debugger, you cannot use the following functions.
(1) Setting or releasing software breakpoints in an internal ROM area while executing the user program
(2) Program and data rewriting in an internal ROM area while executing the user program
(3) Setting or releasing event breakpoints in an internal ROM area while executing the user program
If the user program is halted by the Stop button or a break when block erasing or programming the flash ROM,
the block erase or program operation is stopped. Once this occurs, the user program may not operate as
expected when it is reexecuted from where it stopped. If the user program is stopped accidentally, redownload
and reexecute the program. If when the user program is halted no block erase or program operation is in
progress, the user program can be executed normally from where it stopped.
Note on Data Display during Debugging in CPU Rewrite Mode:
In the read status register mode of CPU rewrite mode, the read values displayed in the memory window, etc.
when the user program is running show the status register values. Note that when the user program is halting,
the read values show data values.
Running/idle
User program running
User program halting
Be aware, however, that the values displayed in the memory window or the RAM monitor window are retained
intact unless you press the Refresh or the Clear button.
Note on Data Write to the Internal ROM Area in CPU Rewrite Mode:
When writing data to the internal ROM area in CPU rewrite mode, this product permits the data bits to be set to
either 1 or 0. This is different from the actual MCU, because in the actual MCU you only can set the data bits to
0.
Note on Trace Data Display When Rewriting the Flash ROM in EW1 Mode:
For data display in the trace window when using EW1 mode, be sure to select source mode or bus mode. If
disassemble mode or data access mode is selected, the debugger will take time for analysis of the trace data to
be displayed.
REJ10J0845-0600 Rev.6.00 Aug. 20, 2009
Page 82 of 92
IMPORTANT
Mode
Read status register mode of CPU
rewrite mode
Other
Read status register mode of CPU
rewrite mode
Other
4. Hardware Specifications
Window display
Status register values are displayed.
Data values are displayed.
Data values are displayed.
Data values are displayed.