Audio Interface - Analog Devices ADSP-BF561 EZ-KIT Lite System Manual

individual button can be read through the
is being pressed-on when the corresponding bit of the register reads
When the switch is released, the bit reads
push button and PF input is established through the
For information on how to disconnect the switch from the programmable
flag and use it for another objective, see
(SW4)".

An example program is included in the EZ-KIT Lite installation
directory to demonstrate functionality of the LEDs and push
buttons.

Audio Interface

The AD1836A audio codec provides three channels of stereo audio output
and two channels of multichannel 96 kHz input. The
the processor links with the stereo audio data input and output pins of the
AD1836A codec. The processor is capable of transferring data to the
audio codec in time-division multiplexed (TDM) or 2-wire serial interface
(TWI) mode.
In TWI mode, the codec can operate at a 96 kHz sample rate but restricts
the output to two channels. In TDM mode, the codec can operate at a
maximum of 48 kHz sample rate but allows simultaneous use of all input
and output channels. When using TWI mode, the
(as well as the
externally to the processor. This is accomplished with the
See "Push Button Enable Switch (SW4)" on page 2-12
information.
The AD1836A audio codec's internal configuration registers are config-
ured using the processor's
for the audio device. For more information on how to configure the
multichannel codec, go to
ADSP-BF561 EZ-KIT Lite Evaluation System Manual
and pins of the processor) must be tied together
TFS0 RFS0
programmable flag pin, used as the select
PF4
www.analog.com/AD1836A
Using the ADSP-BF561 EZ-KIT Lite
FIO0_FLAG_D
. A connection between the
0
"Push Button Enable Switch
TSCLK0
.
register. A switch
.
1
DIP switch.
SW4
interface of
SPORT0
and pins
RSCLK0
DIP switch.
SW4
for more
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