M30870T2-CPE User’s Manual
4. Hardware Specifications
REJ10J0766-0400 Rev.4.00 February 16, 2006
IMPORTANT
Note on Differences between the Actual MCU and Emulator:
Operations of the emulator system differ from those of actual MCUs as listed below.
(1) Reset condition
(2) Initial values of internal resource data of an MCU at power-on
(3) Interrupt stack pointer (ISP) after a reset is released
(4) Capacities of the internal memories (ROM and RAM)
The MCU whose RAM size is 48 KB (400h--C3FFh) is mounted on this product. The internal flash
memory is automatically allocated to F000h--FFFFh and F00000h--FFFFFFh in the single-chip mode and
memory expansion mode.
(5) Oscillator circuit
- Make note of the fact that in the oscillator circuit where a resonator is connected between pins X
IN
and
X
OUT
, oscillation does not occur because a converter board and other devices are used between the
evaluation MCU and the user system. It is same for a sub-clock oscillator (X
CIN
and X
COUT
).
- For notes on when using the oscillator circuit on the user system, refer to "2.9.2 Selecting Clock
Supply" (page 46).
(6) A/D conversion
The characteristics of the A/D converter differ from those of actual MCU because there are a converter
board and other devices between the evaluation MCU and the user system.
(7) Port P15
As one of I/O ports (P15) is connected to the user system through the analog switch circuit, electric
characteristics slightly differ from those of an actual MCU.
(8) When the SW4 is set to XOUT in stop mode, a clock is output from the XOUT pin.
Note on RESET* Input:
A low input to pin RESET* from the user system is accepted only when a user program is being executed
(when the RUN status LED on the emulator's upper panel is lit).
Note on RDY* Input:
Be sure to input "L" to pin RDY* of the user system during the user program executing (when the RUN status
LED on the emulator's upper panel is lit). Inputting "L" to pin RDY* during the user program stopping may
cause a malfunction of the emulator.
Note on HOLD* Input:
Be sure to input "L" to pin HOLD* of the user system during the user program executing (when the RUN status
LED on the emulator's upper panel is lit). Inputting "L" to pin HOLD* during the user program stopping may
cause a malfunction of the emulator.
Note on NMI* Input:
A low input to pin NMI* from the user system is accepted only when a user program is being executed (when
the RUN status LED on the emulator's upper panel is lit).
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