Table 10. LEDs available on top-side of LS1028ARDB (continued)
Reference
designator
LED color
LED name
Description (when LED is ON)
D38
Green
M0
D39
Green
5.0V
5V0 power supply is operating correctly
D40
Green
3.3V
3V3 power supply is operating correctly
D41
Green
1.0V
1V0 power supply is operating correctly
D42
Green
PS_DDR
DDR power supply is operating correctly
D43
Green
VR500
VR500 output supplies (2V5/1V8/1V35) are
operating correctly
D44
Green
TA_BB_VDD
Low power security monitor supply is operating
correctly
D45
Green
SocInSocket
Indicates that the LS1028A processor is in socket
The following table lists all the LEDs available on the front-panel of the LS1028ARDB board chassis.
on page 3 shows the LEDs available on the board chassis.
Table 11. LEDs available on front-panel of board chassis
Reference
designator
LED color
LED name
Description (when LED is ON)
D27
Red
RESET
RESET is 'ON' when reset to DUT is
asserted due to:
• Power cycle
• Debugger reset
• Reset from SoC (RESET_REQ_B if
enabled in CPLD)
• RESET switch
Green
SYSTEM READY
SYSTEM READY is 'On', when power-on
reset sequencing is done
SYSTEM READY is 'Off' for:
• Power sequencing fault
• Any alarm, such as over-temperature
• Explicit software enable (reg CTL.FAIL)
• Other fault signals
SW1
Green/Yellow
POWER
• OFF: off
• YELLOW: power cycle in progress/fault
• GREEN: System ready
D47
Green/Yellow
SWP0
• GREEN : Link is active
Table continues on the next page...
NXP Semiconductors
LEDs
QorIQ LS1028A Reference Design Board Getting Started Guide, Rev. 0, 2/2019
User's Guide
12 / 18
