Leds And Push Buttons - Analog Devices ADSP-21369 EZ-KIT Lite Manual

The AD1835A codec can be configured as a master or a slave, depending
on the DIP switch settings. In master mode, the codec drives the serial
port clock and frame sync signals to the processor. In slave mode, the pro-
cessor must generate and drive all of the serial port clock and frame sync
signals. For more information, refer to
page 2-11.
The internal configuration registers of the codec are configured using the
SPI port of the processor. The DPI pin 4 (
select for the device. For information on how to configure the
multichannel codec, refer to the product data sheet at
www.analog.com/AD1835A
The RCA connector (
electret microphone on this connector, configure switch
the instructions in
page 2-12. The four output channels connect to the RCA connector (
Channel 4 of the codec connects to the headphone jack (
information, see
Example programs are included in the EZ-KIT Lite installation directory
to demonstrate how to configure and use the board's analog audio
interface.

LEDs and Push Buttons

The EZ-KIT Lite has eight general-purpose user LEDs and four gen-
eral-purpose push buttons.
Two general-purpose push buttons are attached to the
processor, while the other two are attached to the DAI pins. All of the
push buttons are connected to the processor through a DIP switch (
The DIP switch can disconnect the processor pins connected to the push
buttons. See "Push Button Enable Switch (SW7)" on page 2-13
ADSP-21369 EZ-KIT Lite Evaluation System Manual
Using the ADSP-21369 EZ-KIT Lite
.
) is used to input analog audio. When using an
J10
"Electret Microphone Select Switch (SW4)" on
"Connectors" on page
"Codec Setup Switch (SW3)" on
register) is used as the
DPI4
SW4
J9
2-21.
FLAG
according to
).
J5
). For more
pins of the
).
SW7
for
1-15