Segger J-Link - Input Indicator

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5.2.2 Input indicator
Some newer J-Links such as the J-Link Pro/Ultra come with additional input/output
indicators. The input indicator is used to give the user some information about the
status of the target hardware.
5.2.2.1 Bi-color input indicator
5.2.3 Output indicator
Some newer J-Links such as the J-Link Pro/Ultra come with additional input/output
indicators. The output indicator is used to give the user some information about the
emulator-to-target connection.
5.2.3.1 Bi-color output indicator
Indicator status Meaning
GREEN Target voltage could be measured. Target is connected.
ORANGE
Target voltage could be measured. RESET is pulled low
(active) on target side.
RED
RESET is pulled low (active) on target side. If no target is
connected, reset will also be active on target side.
Table 5.3: J-Link bi-color input indicator
Indicator status Meaning
OFF Target power supply via Pin 19 is not active.
GREEN Target power supply via Pin 19 is active.
ORANGE
Target power supply via Pin 19 is active. Emulator pulls
RESET low (active).
RED Emulator pulls RESET low (active).
Table 5.4: J-Link bi-color output indicator