R0E417250MCU00 User
’s Manual
1. Outline
R20UT3587EJ0302 Rev.3.02
Page 21 of 232
Sep.01. 21
(5) System Status LEDs
The system status LEDs indicate the E100 emulator’s power supply, operating state of firmware, etc. Table 1.3 lists the
definitions of the system status LEDs.
Table 1.3 Definitions of the system status LEDs
Name
Status
Meaning
POWER
ON
Emulator system power is turned ON.
OFF
Emulator system power is turned OFF.
SAFE
ON
Emulator system is operating normally.
Flashing
Emulator system cannot communicate with the host machine.
Flashing
(every 2 seconds)
Self-checking is in progress.
OFF
Emulator system is not operating normally (system status error).
(6) Target Status LEDs
The target status LEDs indicate the operating state of the target MCU and power supply of the user system. Table 1.4 lists
the definitions of the target status LEDs.
Table 1.4 Definitions of the target status LEDs
Name
Status
Meaning
POWER
ON
Power is being supplied to the user system.
OFF
Power is not being supplied to the user system.
RESET
ON
Target MCU is being reset, or reset signal of the user system is held low.
OFF
Target MCU is not being reset.
RUN
ON
User program is being executed.
OFF
User program has been halted.
IMPORTANT
Note on the Target Status POWER LED:
⚫
If your MCU has two or more Vcc pins, the LED does not light up unless power is supplied to all the pins.