R0E00008AKCE00EP38 Datasheet, PDF (27/35 Pages) Renesas Technology Corp – Microcomputer Development Environment System

E8a Emulator
7. Notes on Using the E8a Emulator
(5) Stack area used by the E8a emulator
The E8a emulator uses up to 8 bytes of the stack pointer (ISP) during a user program break. Therefore, set aside 8
bytes for the stack area.
(6) Reset
The reset vector is used by the E8a emulator program. If the MCU is reset (hardware reset) while executing the user
program, control is transferred to the E8a emulator program and the user program is forced to stop. Do not use the
software reset, power-on reset, voltage monitor 0 reset, and watchdog timer reset, otherwise the E8a emulator will
run out of control.
If the automatic memory update is enabled in the memory or watch window, do not perform a hardware reset to the
MCU. Otherwise the E8a emulator will run out of control.
(7) Interrupts used by the E8a emulator program (unusable)
The BRK instruction interrupt, address match interrupt, single-step interrupt and address break are used by the E8a
emulator program. Therefore, make sure the user program does not use any of these interrupts. The E8a emulator
changes these interrupt vector values to the values to be used by the emulator. No problems occur if the interrupt
vector values are written in the user program.
(8) Reserved area
The addresses not specified in the Hardware Manual of MCUs are reserved area. Do not change the contents.
Otherwise, the E8a emulator cannot control the MCU.
(9) Count source protection mode
Count source protection mode cannot be debugged with the E8a emulator.
REJ10J1739-0200 Rev.2.00 Jul. 03, 2009
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