LEDs and Push Buttons
2-18 ADSP-BF538F EZ-KIT Lite Evaluation System Manual
Programmable Flag Push Buttons (SW10–13)Four push buttons, SW10–13, are provided for general-purpose user input.
The buttons connect to the PF0-3 programmable flag pins of the proces-
sor. The push buttons are active high and, when pressed, send a high (1)
to the processor. Refer to “LEDs and Push Buttons” on page 1-13 for
more information on how to use the flags to program the processor. The
push button enable switch (SW5) is capable of disconnecting the push but-
tons from its corresponding PF signal (refer to “Push Button Enable
Switch (SW5)” on page 2-11). The programmable flag signals and associ-
ated switches are shown in Table 2-14.
Power LED (LED7)When LED7 is lit (green), it indicates that power is being properly supplied
to the board.
Reset LED (LED8)When LED8 is lit, it indicates that the master reset of all the major ICs is
active.
Table 2-14. Programmable Flag Switches
Processor Programmable Flag Pin Push Button Reference Designator
PF0 SW13
PF1 SW12
PF2 SW11
PF3 SW10