Analog Devices EZ-KIT Lite ADSP-BF533, Manual

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LEDs and Push Buttons
3-14 ADSP-BF533 EZ-KIT Lite Evaluation System Manual
push buttons from the PF (refer to “Push Button Enable Switch (SW9)”
on page 3-12 for more information). The programmable flag signals and
their corresponding switches are shown in Table 3-8 .
Reset Push Button (SW8)
The
RESET
push button resets all of the ICs on the board. One exception is
the USB interface chip (
U34
). The chip is not being reset when the push
button is pressed after the USB cable has been plugged in and communi-
cation has been correctly initialized with the PC. After USB
communication has been initialized, the only way to reset the USB is by
powering down the board.
Power LED (LED1)
When
LED1
is lit (green), it indicates that power is being properly supplied
to the board.
Reset LEDs (LED3–2)
When
LED2
is lit, it indicates that the master reset of all the major ICs is
active. When
LED3
is lit, the USB interface chip (
U34
) is being reset. The
USB chips only reset on power-up, or if USB communication has not
been initialized.
Table 3-8. Programmable Flag Switches
DSP Programmable Flag Pin Push Button Reference Designator
PF8 SW4
PF9 SW5
PF10 SW6
PF11 SW7