Leds - NXP Semiconductors Layerscape LS1046A Getting Started Manual

NXP Semiconductors
• "ON" setting corresponds to 1
• "OFF" setting corresponds to 0
The DIP switch is highlighted in
Table 6. SW1 settings
Switch Supported function
SW1[1:9] RCW fetch location
CFG_RCW_SRC[0:8]
SW1[10] System clock source
CFG_ENG_USE0
1. The LS1046A processor does not support booting from NAND flash.

9 LEDs

The FRWY-LS1046A has light-emitting diodes (LEDs) to monitor system functions, such as power-on, reset, board faults, and so
on. The information collected from LEDs can be used for debugging purposes. LEDs are highlighted in
Figure 5. on page 6. The table below describes the FRWY-LS1046A LEDs.
Table 7. FRWY-LS1046A LEDs
Reference LED color
designator
D2 Yellow
D4 Green
D508 Green
1
D510 Green
D511 Green
Layerscape FRWY-LS1046A Board Getting Started Guide, Rev. 0, 26 April 2019
User's Guide
Figure 4. on page 5. The table below describes SW1 settings.
Settings
• 0_0100_0100: QSPI NOR flash (default setting)
• 0_0100_0000: Micro-SD card
• 1_0000_01xx: NAND flash (8-bit bus, 2 KB page, 64 pages/block)
(LS1043A only)
• 0_1001_1110: Hard-coded RCW
• 0: DIFF_SYSCLK/DIFF_SYSCLK_B (differential clock) - 100 MHz (fixed)
(default setting)
• 1: SYSCLK (single-ended clock) - 100 MHz (fixed)
LED name
ASLEEP
USB1_5V
USB2_5V
M.2 Card1
M.2 Card2
Table continues on the next page...
1
Description (when LED is ON)
The processor has not exited Sleep mode, which
generally indicates:
• Improper RCW source selection
• Boot memory does not contain a valid
RCW/PBL
• PLL multipliers in the RCW data are not
compatible with the fixed SYSCLK, DDRCLK,
or SDCLK values
USB1 port of the dual-port USB connector (J70) is
powered with 5 V supply for external USB device
USB2 port of the dual-port USB connector (J70) is
powered with 5 V supply for external USB device
The M.2 PCIe module on M.2 PCIe slot 1 (J46) is
powered properly and its transmitter is ready to
transmit
The M.2 PCIe module on M.2 PCIe slot 2 (J52) is
powered properly and its transmitter is ready to
transmit
LEDs
Figure 4. on page 5 and
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