R0E00008AKCE00EP62 Datasheet, PDF (72/82 Pages) Renesas Technology Corp – Microcomputer Development Environment System

Section 5 Differences between the MCUs and the Emulator
Figure 5.3 [ID Code] Dialog Box
4. When the emulator system is initiated, it initializes the general registers and part of the control
registers as shown in table 5.1.
Table 5.1 Register Initial Values at Emulator Power-On
Register
PC
ER0 to ER6
ER7 (SP)
CCR
Initial Value
Reset vector value in the vector address table
H’0000
H'FF80
H’80
5. Low-Power Mode
During a user program break, the CPU operating frequency is forced to a system clock (φ) for
high-speed operation.
6. RES# Signal
The MCU signals are only valid during user program execution started with clicking the GO
or STEP-type button. During a user program break, the RES# signal is not sent to the MCUs.
Note: Do not start user program execution or access the memory while control input signal
(RES#) is being low. A TIMEOUT error will occur.
7. System Control Register
In the emulator, the internal I/O registers can be accessed from the [IO] window. However, be
careful when accessing the system control register. The emulator saves the register value of
the system control register at a break and returns the value when the user program is executed.
Since this is done during a break, do not rewrite the system control register in the [IO] window.
Rev. 1.00 Aug.03, 2009 Page 16 of 22
REJ10J2022-0100