Gemalto M2M GmbH PDS6 Manuel D’Utilisation
PDS6_HIO_v02.800
Confidential / Preliminary
2014-10-27
Cinterion
®
PDS6 Hardware Interface Overview
2.1 Application Interface
Page 14 of 35
2.1.4
Analog Audio Interface
PDS6 has an analog audio interface with a balanced analog microphone input and a bal-
anced analog earpiece output. A supply voltage and an analog ground connection are
provided at dedicated pads.
anced analog earpiece output. A supply voltage and an analog ground connection are
provided at dedicated pads.
2.1.5
Digital Audio Interface
PDS6‘s digital audio interface (DAI) can be used to connect audio devices capable of pulse
code modulation (PCM).
code modulation (PCM).
2.1.6
GPIO Interface
PDS6 offers a GPIO interface with 8 GPIO lines. The GPIO lines are shared with other
interfaces or functions: Fast shutdown (see
interfaces or functions: Fast shutdown (see
Section 2.1.11.4
), the PWM functionality (see
Section 2.1.9
), an pulse counter (see
Section 2.1.10
).
The following table shows the configuration variants for the GPIO pads. All variants are mutu-
ally exclusive, i.e. a pad configured for instance as fast shutdown line is locked for alternative
usage as GPIO.
ally exclusive, i.e. a pad configured for instance as fast shutdown line is locked for alternative
usage as GPIO.
Table 2: GPIO lines and possible alternative assignment
GPIO
Fast Shutdown
PWM
Pulse Counter
GPIO2
GPIO4
FST_SHDN
GPIO5
GPIO6
PWM2
GPIO7
PWM1
GPIO8
COUNTER
GPIO9
GPIO10
After startup, the above mentioned alternative GPIO line assignments can be configured using
AT commands (see
AT commands (see
[1]
). The configuration is non-volatile and available after module restart.