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3.1.5 Display devices
Three LEDs are included as status display devices.
Name
LED1
STATUS
(RUN, BREAK, DOWNLOAD)
LED2
TARGET
LED3
POWER
3.2 Signal Functions of Target Interface
(1) RESET_IN
This is the target's reset input signal.
(2) RESET_OUT
This is a reset signal output to the target device.
(3) V
_IN
DD
An interface output signal is generated when the target system's V
(4) X1 pin
This is an output signal that is used to supply the clock.
(5) X2 pin
This is a bidirectional signal used for data communications.
(6) FLMD0
This is an output signal used to overwrite the target device's flash memory.
(7) 5 V_CHK
This is a power supply pin for the self-check board only.
Up to 50 mA can be supplied via this pin. However, since power is being supplied via the USB bus, a voltage
drop occurs when voltage is drawn via this pin. Therefore, do not supply voltage to the target device from this
pin.
(8) GND
This is a GND pin.
20
CHAPTER 3 HARDWARE SETTINGS AND FUNCTIONS
Display Function
RUN: Blinking (slow)
After break or debugger start: ON
DOWNLOAD: Blinking (fast)
Before starting debugger: OFF
Before starting
When target voltage is 1.8 V or higher: ON
debugger
When target voltage is lower than 1.8 V: OFF
After starting
When target voltage is POC voltage or higher: ON
debugger
When target voltage is lower than POC voltage: OFF
With power supplied from host machine: ON
Without power supplied from host machine: OFF
User's Manual U17029EJ3V0UM
Remark
voltage is detected.
DD
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