Renesas M30800T-CPE, Руководство пользователя

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IMPORTANT
Note on Restrictions in Using the Emulator (1/2):
• The following restrictions apply to this emulator.
(1) Debug command execution when the BCLK is stopped
When the BCLK is stopped, debug commands (break, dump, single-step, forced stop, etc.)
cannot be executed. The BCLK can stop in the following cases.
• When the target clock is not oscillating
• When the target MCU is on hold
• When the target MCU is in the stop mode
(2) MCU status during program hold
With this product, the program is stopped with a loop program to a specific address. Note that,
in this case, peripheral circuits are still operating.
(3) Interrupts during single step execution
Interrupts are disabled during single step execution. Accordingly, interrupt processing is not
performed even if an interrupt request is sent.
(4) Address matched interrupt
• Do not set software breaks for an address for which an address matched interrupt is set.
• In step execution, do not execute addresses that generate address matched interrupts.
• Do not set hardware breaks within 4 instructions before an address that generate address
matched interrupts. Otherwise, the program will run out of control.
(5) Stop and wait modes
• Do not use a single step for the command that shifts to the stop mode.
• Operation does not shift to the wait mode when the command that shifts to the wait mode
is executed as a single step.
(6) Stack area
With this emulator, user stacks specified by ISP consume 12 bytes. If there isn't enough user
stack area, using other areas not designed for use as stacks (SFR area, RAM area that stores
data or ROM area) can damage the user program or destabilize emulator control. Therefore,
ensure a m12 bytes of the area used by the user program as user stack area.
(7) Trace results for addresses that set software breaks
Software breaks replace the original command with the BRK command "08
16
" that generates
the BRK interrupt. When trace results are viewed in the bus display, "08
16
" is displayed by
fetching (by command) the address that sets the software break, however in the reverse
assembly display, the "BRK" command is displayed.
(8) Protect register (PRC2)
When the protect register (PCR2) that enables writing in the port P9 direction register (address
3C7
16
) and the function selection register A3 (address 3B5
16
) is changed in the following way,
the protect is not cancelled.
1) When the "command that sets PRC2 to '1' is executed (step execution)"
2) When the program is executed with a break point set between the "command that sets
PRC2 to '1'" and "when the register to be protected is set"
3) When "PRC2 is set to '1'" in the Dump or Script windows
(9) Debug command execution while running the user program
If a dump or any other debug command is executed while running the user program, the real-
time capability of the user program cannot be guaranteed.
(10) Access-inhibited areas
• The emulator control registers (000020
16
to 00003F
16
) in the SFR area are inhibited against
read and write. Accessing these registers makes the emulator uncontrollable.
• The address FFFFFF
16
in this product cannot be read and written normally.