User's Manual

Cinterion
®
PLS8-X/PLS8-V Hardware Interface Overview
3.6 Digital Audio Interface
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PLS8-X_PLS8-V_HIO_v03.009 2015-08-04
Confidential / Preliminary
Page 25 of 40
3.6 Digital Audio Interface
PLS8-X/PLS8-V supports a digital audio interface that can be employed either as pulse code
modulation interface or as inter IC sound interface. Operation of these interface variants is mu-
tually exclusive, and can be configured by AT command (see [1]). Default setting is pulse code
modulation.
Note: As PLS8-X/PLS8-V is a data only module, the module’s digital audio interface supports
local tones only and is otherwise reserved for future use.
3.7 Analog-to-Digital Converter (ADC)
PLS8-X/PLS8-V provides three unbalanced ADC input lines: ADC1_IN, ADC2_IN and
ADC3_IN. They can be used to measure three independent, externally connected DC voltages
in the range of 0.3V to 3.075V.
3.8 GPIO Interface
PLS8-X/PLS8-V has 10 GPIOs for external hardware devices. Each GPIO can be configured
for use as input or output. All settings are AT command controlled.