Reset Push Button (Sw1); Programmable Flag Push Buttons (Sw6-9); Power Led (Led1) - Analog Devices ADSP-BF561 EZ-KIT Lite Manual

LEDs and Push Buttons

Reset Push Button (SW1)

The push button resets all of the ICs on the board. One exception is
RESET
the USB interface chip (
button is pressed after the USB cable has been plugged in and communi-
cation with the PC has been initialized correctly. Once communication is
initialized, the only way to reset the USB is by powering down the board.
Programmable Flag Push Buttons (SW6–9)
Four push buttons,
The buttons connect to the programmable flag pins of the processor (
). The push buttons are active high and, when pressed, send a high (
8
the processor. Refer to
information on how to use PFs when programming the processor. The
push button enable switch (
tons from its associated PF (refer to
on page 2-12). The programmable flag pins and corresponding switches
are shown in Table
Table 2-11. Programmable Flag Switches
Processor Programmable Flag Pin
PF5
PF6
PF7
PF8

Power LED (LED1)

When is lit (green), it indicates that power is being supplied to the
LED1
board properly.
2-16
www.BDTIC.com/ADI
). The chip is not being reset when the push
U34
, are provided for general-purpose user input.
SW6–9
"LEDs and Push Buttons" on page 1-10
) is capable of disconnecting the push but-
SW4
"Push Button Enable Switch (SW4)"
2-11.
Push Button Reference Designator
SW6
SW7
SW8
SW9
ADSP-BF561 EZ-KIT Lite Evaluation System Manual
PF5–
) to
1
for more