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Note on Software Reset:
• Do not use a software reset.
Notes on Address Match Interrupt:
• Do not set software breaks at the same addresses as address-match interrupts as the program may
run out of control.
• Do not set a hardware break within 4 instructions before an address at which an address-match
interrupt occurs. If you do set a hardware break in this range, the program will run out of control.
•When an address at which an address-match interrupt occurs is executed in one-step mode, the
program stops after executing the first instruction after returning from the address-match interrupt
processing.
IMPORTANT
Notes on Interruption:
• Even when the target program is not being executed (while the target program is stopped or during
runtime debugging), the evaluation MCU keeps running so as to control the emulation pod.
Therefore, note that timers and other components do not stop running even though the target
program is not being executed.
• If a maskable interrupt request is generated when the target program is not being executed (while
the target program is stopped or during runtime debugging), the request is not accepted because the
emulator disables all interrupts. If an interrupt request is generated when the target program is not
being executed, but the target program enables that interrupt, it will be accepted immediately after
program execution starts.
Note on BRK Instruction and BRK Instruction Interruption:
• With this emulator system, BRK instructions and BRK instruction interruptions are exclusively
used for software break functions. Therefore, you can not use them for your program.
Note on Stop and Wait Modes:
•Do not perform step execution at addresses in the stop or wait mode. It may cause communication
errors.
Note on Address 00000h Access:
•With the M16C/6H Group MCUs, when a maskable interrupt is generated, the interrupt data
(interrupt No. and interrupt request level) stored in address 00000h is read out. Also, the interrupt
request bit is cleared when address 00000h is read out. Consequently, when the address 00000h
readout instruction is executed or when address 00000h is read out in the cause of a program
runaway, a malfunction occurs in that the interrupt is not executed despite the interrupt request,
because the request bit of the highest priority interrupt factor enabled is cleared.
For this malfunction, when the reading out to the address 00000h is generated excluding the
interrupt, the yellow LED lights up to alarm. When this LED lights, there is a possibility of wrong
access to address 00000h, therefore check the program. This LED is turned off by the RESET
switch of the emulator main unit.