Datasheet

ADSP-21262 EZ-KIT Lite Evaluation System Manual 2-15
ADSP-21262 EZ-KIT Lite Hardware Reference
General Purpose LEDs (LED8–1)
Eight general-purpose LEDs are connected to the processor through a
latch on signals AD7–0. These LEDs can be accessed by writing to the FLAG
registers or by writing to a memory address. Refer to “LEDs and Push
Buttons” on page 1-11 for more information.
Reset LED (LED9)
When LED9 is lit (red), the master reset of all the major ICs is active.
Power LED (LED10)
When LED10 is lit (green), it indicates that power is being properly sup-
plied to the board.
S/PDIF GPO1 LED (LED11)
The S/PDIF GPO1 LED (LED11) connects to the GPO1 signal of the CS8416.
The functionality of GPO1 is programmable via SPI.
USB Monitor LED (ZLED3)
The USB monitor LED (ZLED3) indicates that USB communication has
been initialized successfully and you may connect to the processor using a
VisualDSP++ EZ-KIT Lite session. Once the USB cable is plugged into
the board, it takes approximately 15 seconds for the USB monitor LED to
light. If the LED does not light, try cycling power on the board and/or
reinstalling the USB driver.
L
When VisualDSP++ is actively communicating with the EZ-KIT
Lite target board, the LED can flicker, indicating communications
handshake.