Sony Ericsson GM47 - Manual (Page 4)

GM47/GM48 INTEGRATOR’S MANUAL
4
LZT 123 7263 R1C
2. System Connector Interface ..................................................................................41
2.1 Overview .......................................................................................... 41
2.2 General Electrical and Logical Characteristics ............................................ 44
2.2.1
General Protection Requirements ...................................................44
2.3 Grounds .......................................................................................... 45
2.3.1 Analogue Ground - AGND ..............................................................45
2.3.2 Digital Ground - DGND..................................................................45
2.4 VCC - Regulated Power Supply Input ......................................................... 45
2.5 ON/OFF and External Power Signal ............................................................ 46
2.5.1
Switching the module ON and OFF ................................................46
2.5.2 VIO - 2.75V Supply..........................................................................47
2.6 Analogue Audio .......................................................................................... 48
2.6.1
Audio To Mobile Station - ATMS ....................................................48
2.6.2 Audio From Mobile Station - AFMS ...............................................49
2.6.3 Microphone Signals.........................................................................50
2.6.4 Speaker Signals ...............................................................................51
2.7 PCM Digital Audio....................................................................................... 52
2.7.1
PCM Data Format...........................................................................53
2.8 Serial Data Interfaces.................................................................................... 55
2.8.1
UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI..............55
2.8.2 Serial Data Signals - RD, TD..........................................................56
2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI ...................................56
2.8.4 UART2 - TD2, RD2 .........................................................................58
2.8.5 UART3 - TD3, RD3 (designated for future use)..............................59
2.9 SIM Card Related Signals ............................................................................ 59
2.9.1
SIM Detection - SIMPRESENCE ....................................................60
2.10 Service/Programming ................................................................................... 61
2.11 Buzzer
.......................................................................................... 61
2.12 LED .......................................................................................... 61
2.13 General Purpose Digital I/O Ports ................................................................ 62
2.14 General Purpose Analogue I/O Ports............................................................ 63
2.14.1 Digital to Analogue Converter - DAC.............................................63
2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx ........................64
2.15 External I
2
C Serial Control Bus .................................................................. 65
2.16 TX_ON - Burst Transmission....................................................................... 65
2.17 Real Time Clock .......................................................................................... 66
3. Antenna Connector ................................................................................................68
4. Hints for Integrating the Module..........................................................................69
4.1 Safety Advice and Precautions ..................................................................... 69
4.1.1
General ............................................................................................69
4.1.2 SIM Card .........................................................................................69
4.1.3 Antenna............................................................................................70
4.2 Installation of the Module............................................................................. 70
4.2.1
Where to Install the Module ............................................................70
4.2.2 How to Install the Module ...............................................................71
4.3 Antenna .......................................................................................... 72