Leds - NXP Semiconductors QorIQ LS1028A Reference Manual

Switch Supported function
SW3[6:8] Unused
The table below summarizes the default switch settings of the LS1028ARDB DIP
switches.
DIP switch
SW1
SW2
SW3

3.2 LEDs

The LS1028ARDB has numerous onboard light-emitting diodes (LEDs), which can be
used to monitor various system functions, such as power-on, reset, board faults, and so
on. The information collected from LEDs can be used for debugging purposes. The
following table lists all the LEDs present on the LS1028ARDB.
Reference LED color
designator
D2 Green
D14 Green
D15 Green
D16 Green
D19 Green
D17 Green
D25 Yellow
QorIQ LS1028A Reference Design Board Reference Manual, Rev. A, 02/2018
NXP Semiconductors
Table 3-1. Switch settings (continued)
Reserved
Default value is 0.
Table 3-2. Default switch settings
1111_1000
1111_0X00
0X11_1000
Table 3-3. LS1028ARDB LEDs
LED name
12V_IN
M.2 LED1
M.2 LED1
M.2 DAS
USB2 5V
USB1 5V
ASLEEP
Table continues on the next page...
Confidential Proprietary
Chapter 3 Board Configuration and Debug Support
Description
Value
Description (when LED is ON)
Indicates 12 V input power supply is operating.
The M.2 card on J16 is powered properly and its
transmitter is ready to transmit.
The M.2 card on J18 is powered properly and its
transmitter is ready to transmit.
The SSD M.2 card on J20 is powered properly and
drive is active. DAS stands for Drive Activity Signal.
5 V power is supplied to the USB 2 connector for
external devices
5 V power is supplied to the USB 1 connector for
external devices
The processor has not exited Sleep mode, which
generally indicates:
• Improper RCW source selection
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