Sport0 - Audio Interface; Sport1 Telephony Interface - Analog Devices ADSP-2191 EZ-KIT Lite Manual

System Architecture
SPORT0 – Audio Interface
is connected to the AD1885 SoundMAX codec (
SPORT0
stereo jacks (
P3
an audio input to the Codec Microphone Input Channel (
stereo
LINE_IN
codec channel driven by the input jack (
which is connected to the reset pin of the AD1885 codec, allows the processor
to reset the codec.
is also routed to an off-board connector (
SPORT0
off-board connector, the codec must be disabled to avoid bus contention.
disables the codec by putting it into reset and disabling the codec outputs
JP3
from driving the processor's SPORT inputs. For more information about dis-
abling the codec, see

SPORT1 Telephony Interface

is connected to the AD1803 telephony codec (
SPORT1
interface provided by the AD1803 allows the processor to act as a modem on a
standard telephone line. Four of the general-purpose pins of the AD1803
codec are used. The following table gives the function of each of the gen-
eral-purpose pins.
Table 3-1. AD1803 General-Purpose Pin Function
AD1803 Pin
G[0]
G[1]
G[4]
G[5]
3-4
, ) allow audio to be input and output. You can supply
P4
input channel. The jumper settings of
"Telephony Codec Disable (JP3)" on page
Description
Used to connect or disconnect from the telephone line
Detects when the phone is ringing
Used as a speaker output, to monitor the telephone communication
Connected to an LED. This LED can be used for any application; for
example, to indicate an incoming call or a phone in use
ADSP-2191 EZ-KIT Lite Evaluation System Manual
U10
determine the
JP1
). The programmable flag,
P3 PF6
). When you use the
P6
). The telephony
U11
). Two 3.5mm
) or to the
MIC1
3-8.