Leds And Push Buttons - Analog Devices Lite ADSP-BF538F EZ-KIT System Manual

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The frame sync and bit clocks are generated from the ADC and feed to the
processor because the ADC is operating in master mode. The audio inter-
face samples data at a 48 kHz sample rate. The serial data interface
operates in 2-wire interface (TWI) mode and connects to
processor.
The audio interface can be disconnected from the
positions 1 and 5 of the
signals can be used on the
SPORT0
sion interface (see "SPORT0 and SPORT1 Connectors (P6 and P7)" on
page 2-23 and "Audio Enable Switch (SW7)" on page 2-12
information).
Example programs are included in the EZ-KIT Lite installation directory
to demonstrate audio circuit operation.

LEDs and Push Buttons

The EZ-KIT Lite provides four push buttons and five LEDs for gen-
eral-purpose IO.
The five LEDs, labeled
cessor pins. For information on how to program the pins, refer to the
ADSP-BF538/ADSP-BF538F Blackfin Processor Hardware Reference.
The four general-purpose push button are labeled
status of each individual button can be read through the processor's pro-
grammable flag inputs,
switch is being pressed-on. When the switch is released, the signal reads
A connection between the push button and programmable flag input is
established through the DIP switch,
on page 2-17 for details.
An example program is included in the EZ-KIT Lite installation directory
to demonstrate functionality of the LEDs and push buttons.
ADSP-BF538F EZ-KIT Lite Evaluation System Manual
Using ADSP-BF538F EZ-KIT Lite
switch . When in the
SW7 OFF
connector (
SPORT0
through , are accessed via the
LED2 LED6
. The signal reads
PF0–3
. See "LEDs and Push Buttons"
SW5
of the
SPORT0
by turning
SPORT0
position, the
OFF
) or on the expan-
P6
for more
pro-
PC5–9
through . A
SW10 SW13
when a corresponding
1
1-13
.
0