Audio Interface - Analog Devices ADSP-BF526 EZ-Board Manual

Audio Interface

The PHY portion of the Ethernet chip connects to a Pulse HX1188 mag-
netics ( ), then to a standard RJ-45 Ethernet connector (
U28
information, see "Ethernet Connector (J5)" on page 2-32.
Example programs are included in the EZ-Board installation directory to
demonstrate how to use the Ethernet interface.
In low-power consumption applications that do not require Ethernet, the
jumpers can be removed to disconnect the power from the
P21—22
LAN8700 PHY and Ethernet oscillator.
PWR Jumpers (P21–22)" on page 2-25.
Audio Interface
The audio interface of the EZ-Board consists of a low-power stereo codec,
ADI SSM2603, with an integrated headphone driver and associated pas-
sive components. There are two inputs, a stereo line in, and a mono
microphone, as well as two outputs, a headphone, and a stereo line out.
The codec has integrated stereo analog-to-digital converters (ADCs) and
digital-to-analog converters (DACs) and requires minimal external
circuitry.
The codec connects to the ADSP-BF526 processor via the processor's
serial port 0A (alternate). The
are disconnected from the codec by turning switches
which enable
SPORT0A
ENBL Switches/I2C ENBL (SW2 and SW7)" on page 2-11
information.
The TWI of the ADSP-BF526 processor is used to setup and control the
codec. The default TWI address is
from the codec by turning positions 3 and 4 of
"SPORT0A ENBL Switches/I2C ENBL (SW2 and SW7)" on page 2-11
for more information.
1-22
port and 2-wire interface (TWI)
SPORT0A
on the expansion interface II. See
0011011
ADSP-BF526 EZ-Board Evaluation System Manual
For more information, see "ETH
and
SW2
"SPORT0A
. The TWI can be disconnected
. Refer to
SW2 OFF
). For more
J5
,
SW7 OFF
for more