DCS WDU models Specifications download pdf (Page 26)

UC864-E/G/WD/WDU Product Description

80281ST10034a Rev. 4 – 2009-06-24

3.12 User Interface

The user interface is managed by AT commands specified on the ITU-T V.250, 3gpp

27.007 and 27.005 specifications.

3.12.1 Speech Coding

The UC864 family voice codec support the following rates:

• WCDMA

o Adaptive Multi Rate

• GSM

o Half Rate

o Full rate

o Enhanced Full Rate

o Adaptive Multi Rate

3.12.2 SIM Reader

The UC864 family supports R5 and R99 3gpp TS 31.114 - USIM 1.8V and 3V ONLY

with an external SIM connector. For 5V SIM operation an external level translator can

be added.

3.12.3 SMS

The UC864 family supports the following SMS types:

• Mobile Terminated (MT) class 0 – 3 with signaling of new incoming SMS, SIM full,

SMS read

• Mobile Originated class 0 – 3 with writing, memorize in SIM and sending

• Cell Broadcast compatible with CB DRX with signaling of new incoming SMS.

3.12.4 Real Time Clock and Alarm

The UC864 family supports the Real Time Clock and Alarm functions through AT

commands, furthermore an alarm output pin (GPIO6) can be configured to indicate the

alarm with a hardware line output.

Furthermore the Voltage Output of the RTC power supply is provided so that a backup

capacitor can be added to increase the RTC autonomy.

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DCS WDU models Specifications Page 26