User's Manual

A8000 User Guide
Confidential
A8000_User_Guide_V1.0 Page 6 of 22 2009/05/13
External antenna Connected via 50 Ohm antenna connector or antenna pad
Audio features Speech codec modes:
• Half Rate (ETS 06.20)
• Full Rate (ETS 06.10)
• Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
• Echo suppression
Serial interface •seven lines on serial port Interface;
•software download;
•print debug information.
Phonebook management Supported phonebook types: SM, FD, LD, RC, ON, MC.
SIM Application Toolkit Supports SAT class 3, GSM 11.14 Release 98
Real time clock Implemented
Physical characteristics Size: 28(±0.15) x 20(±0.15) x 2.85(±0.3) mm
Firmware upgrade Firmware upgradeable over serial interface
Parallel port Connects with external parallel port devices
1.3 Operating Modes
The table1-2 below briefly summarizes the various operating modes referred to in the following
chapters.
Table1-2 Overview of operating modes
Mode Function
GSM / GPRS
SLEEP
Module will automatically go into SLEEP mode if there is no on air or audio activity is
required and no hardware interrupt (such as GPIO interrupt or data on serial port).
In this case, the current consumption of module will reduce to the minimal level.
During sleep mode, the module can still receive paging message and SMS from the
BTS.
GSM IDLE Software is active. Once registered to the GSM network, paging with BTS is carried
out, and the module is ready to send and receive.
GSM TALK Connection is going on between two subscribers. In this case, the power consumption
depends on network settings.
GPRS IDLE
Module is ready for GPRS data transfer, but no data is currently sent or received. Power
consumption depends on network settings and GPRS configuration (e.g. multi-slot
settings).