Technical information

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IMPORTANT
Note on Differences between Actual MCU and Emulator:
•Operations of the emulator system differ from those of actual MCUs as listed below.
(1) Reset condition
Set the rise time (0.2 Vcc to 0.8 Vcc) 1 µs or less.
(2) Data values of ROM and RAM areas at power-on
(3) Internal memories (ROM and RAM) capacities etc.
With this emulator system, "INT" (emulation memory ON) is the default for mapping areas
other than the SFR area (addresses 000h--3FFh). For this reason, the emulation memory can
read and write in areas other than the SFR, internal RAM and internal ROM.
(4) Oscillator circuit
•Make note of the fact that in the oscillator circuit where a resonator is connected between
the XIN and XOUT pins, oscillation does not occur because a flexible cable, buffer IC and other
devices are used between the evaluation MCU and the target system. It is same for sub-clock
oscillator circuits (XCIN and XCOUT).
• For note on when using the oscillator circuit on the target system, refer to "3.3 (1) Using the
Oscillator Circuit on the Target System" (page 34).
(5) Characteristics of ports P00 to P57
With this product, ports P00 to P57 are connected via emulation circuit. The device used for
the port emulation circuit is as follows.
Device: M60081L-0142FP
(6) Characteristics of port P10
With this product, parts of I/O ports (P10) is connected to the target system via analog switch
circuit. Therefore the electrical characteristics are slightly different from those of actual
MCUs.
(7) HOLD* control
When inputting "Low" to the HOLD* pin to run into the HOLD state, P00 to P52 will be in
the HOLD state delaying by 2.5 cycles than the actual MCU (see Figure 5.5 and Table 5.5).
(8) DBC, Single-step and BRK instruction interrupt vector table addresses
As the emulator uses the DBC, Single-step and BRK instruction interrupt vector table
addresses, when reading these addresses, the downloaded data cannot be read (see Table 1.2).
Table 1.2 Vector table addresses for the emulator
*1 Interruption for the debugger only
(9) A-D conversion
As a analog switch, flexible cable, pitch converter board and other devices are used between
the evaluation MCU and the target system, some characteristics are slightly different from
those of the actual MCU.
(10) Oscillation stop detection function
With this product, you can not debug the oscillation stop detection function.
(11) Accessing to oscillation stop detection register
With this product, when the register is read out, undefined values are read out.
(12) On-chip oscillator operation
With this product, you cannot use on-chip oscillator operation.
Factor of interruption Vector table addresses Data for reading
DBC*
1
FFFF4h--FFFF7h Indefinite
Single-step*
1
FFFECh--FFFEFh Indefinite
BRK instruction FFFE4h--FFFE7h Indefinite