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

Audio Interface

push button and PF input is established through the
information on how to disconnect the switch from the programmable flag
and use it for another objective, see
An example program is included in the EZ-KIT installation direc-
tory to demonstrate the 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 Two-Wire Interface
(TWI) mode.
The TWI mode allows the codec to operate with a 96 kHz sample rate but
restricts the output to two channels. TDM mode can operate at a maxi-
mum of 48 kHz sample rate but allows simultaneous use of all input and
output channels. When using TWI mode, the
well as the
TFS0
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 this device. For more information on how to configure the multichan-
nel codec, download the datasheet from Analog Devices website,
www.analog.com
1-10
and pins of the processor, must be tied together
RFS0
programmable flag pin is used as the select
PF4
.
ADSP-BF561 EZ-KIT Lite Evaluation System Manual
SW4
"Push Button Enable Switch
TSCLK0
DIP switch. For
(SW4)".
interface of
SPORT0
and pins, as
RSCLK0
DIP switch.
SW4
for more