NXP Semiconductors MCX-N9 EVK Series - MCU-Link GPIO Header; Related Documentation

NXP Semiconductors
UM12036
MCX-N9XX-EVK Board User Manual
MCU-Link modePart
identifier
LED name /
color
Normal mode (with CMSIS-DAP
firmware)
Normal mode (with J-
Link firmware)
Firmware update (ISP)
mode
D8 USB COMM /
green
Lights up after successful USB
enumeration at startup. Afterward,
the LED stays ON.
Remains OFF Remains OFF
D9 SWO ACT /
green
Indicates if serial wire debug
trace output (SWO) data is being
received from the target MCU
Remains OFF Remains OFF
D10 Status / red Indicates heartbeat (fades in/out
repeatedly), with SWD activity
overlaid.
The LED blinks rapidly at startup,
if an error occurs.
Remains OFF Lights up when MCU-Link
target (LPC55S69) boots
in ISP mode
D11 VCOM ACT /
green
Indicates if the VCOM port is
transmitting/receiving data
Lights up when MCU-Link
boots, and blinks when
debug activity happens
Remains OFF
D12 FUNC / green Reserved for future use Remains OFF Remains OFF
D13 SIO / green Indicates if USBSIO bridge traffic
is present
Remains OFF Remains OFF
D14 NRG / green Indicates if energy measurement
communication is happening
between the target MCU and
MCU-Link
Remains OFF Remains OFF
Table 34. MCU-Link LEDs
3.12 MCU-Link GPIO header
Table 35 describes the MCU-Link GPIO header (J13) pinout.
Pin number MCU-Link GPIO
1 P1_1
2 P1_9
3 P1_20
4 P1_21
5 P1_31
6 P1_7
Table 35. MCU-Link GPIO header
4 Related documentation
Table 36 lists and explains the additional documents and resources that you can refer to for more information on
the MCX-N9XX-EVK board. Some of the documents listed below may be available only under a non-disclosure
agreement (NDA). To request access to these documents, contact your local field applications engineer (FAE)
or sales representative.
UM12036 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
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