Sony Ericsson GM47 - Page 4

GM47/GM48 INTEGRATOR’S MANUAL
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LZT 123 7263 R1A
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 Digital Audio .......................................................................................... 52
2.8 Serial Data Interfaces.................................................................................... 53
2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI..............53
2.8.2 Serial Data Signals - RD, TD..........................................................54
2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI...................................54
2.8.4 UART2 - TD2, RD2 .........................................................................56
2.8.5 UART3 - TD3, RD3 .........................................................................57
2.9 SIM Card Related Signals ............................................................................ 57
2.9.1 SIM Detection - SIMPRESENCE ....................................................58
2.10 Service/Programming ................................................................................... 59
2.11 Buzzer .......................................................................................... 59
2.12 LED .......................................................................................... 59
2.13 General Purpose Digital I/O Ports................................................................ 60
2.14 General Purpose Analogue I/O Ports............................................................ 61
2.14.1 Digital to Analogue Converter - DAC.............................................61
2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx ........................62
2.15 External I
2
C Serial Control Bus .................................................................. 63
2.16 TX_ON - Burst Transmission....................................................................... 63
2.17 Real Time Clock .......................................................................................... 64
3. Antenna Connector ................................................................................................65
4. Hints for Integrating the Module..........................................................................67
4.1 Safety Advice and Precautions..................................................................... 67
4.1.1 General............................................................................................67
4.1.2 SIM Card .........................................................................................67
4.1.3 Antenna............................................................................................68
4.2 Installation of the Module............................................................................. 68
4.2.1 Where to Install the Module ............................................................68
4.2.2 How to Install the Module...............................................................69
4.3 Antenna .......................................................................................... 70
4.3.1 General............................................................................................70