Renesas R0E521000EPB00, Руководство пользователя

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R0E521000EPB00 User’s Manual 4. Hardware Specifications
REJ10J0844-0400 Rev.4.00 October 16, 2007
Page 79 of 88
IMPORTANT
Note on Debugging in CPU Rewrite Mode:
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When you debug the MCUs 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:
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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 or data rewrite operation to an internal ROM area
(3) Setting or releasing hardware breakpoints while executing the user program
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If the user program is halted by the Stop button or a break when erasing or programming the flash ROM, the
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:
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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 idle, the
read values show data values.
Running/idle Mode Window display
Read status register mode of CPU
rewrite mode Status register values are displayed. User program running
Other Data values are displayed.
Read status register mode of CPU
rewrite mode Data values are displayed. User program idle
Other Data values are displayed.
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:
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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:
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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.