Freescale Semiconductor QorIQ T1023, User Manual

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2.24.4 LEDs
The below table lists all the LEDs on the T1023RDB front plate.
Table 2-13. LEDs on the T1023RDB front plate
Description Reference
designators
Color for LED ON LED OFF
12 V Power D11 Green 12 V Power ON 12 V Power OFF
3.3 V Power D15 Green 3.3 V Power ON 3.3 V Power OFF
Status D18 Yellow LED is always ON, the
board boot fails LED is turned ON for
less than 1 second at
power ON and then
OFF. The board boots
normally.
2.25 Switch settings
The RDB has user selectable switches for evaluating different frequency and boot options
for the T1023 device.
2.25.1 T1023RDB-PC RCW source configuration (using switches)
The below table lists options for RCW source configuration.
Table 2-14. T1023RDB-PC RCW source configuration options
SW1[1:8], SW2[1] cfg_rcw_src[0:8] RCW source Remark
ON ON ON OFF ON
OFF OFF OFF, OFF 000101111 16-bit NOR, provides up to 28b addressability For NOR flash boot,
except the RCW
source settings, also
set SW3.4 to ON to
assign CS0 and RB0
to NOR flash.
ON ON OFF ON ON
ON ON ON, ON 001000000 SD/MMC
ON ON OFF ON ON
ON OFF ON, OFF 001000101 SPI 24-bit addressing
OFF ON ON ON ON
ON OFF ON, ON 100000101 8-bit NAND, 2 KB page, 64 pages/block For NAND flash
boot, except the
RCW source
settings, also set
SW3.4 to OFF to
assign CS0 and RB0
to NAND.
Chapter 2 Architecture
QorIQ T1023 Reference Design Board User Guide, Rev. 0, 08/2015
Freescale Semiconductor, Inc. 31