User Guide

GM47/48 Design Guidelines
BA/SEM/MSC 02:0006 Rev PA1 27
Appendix II – GM47/48 Pin out
Pin Signal Name Dir Signal Type Description
1. VCC - Supply Power Supply
2. DGND - - Digital Ground
3. VCC - Supply Power Supply
4. DGND - - Digital Ground
5. VCC - Supply Power Supply
6. DGND - - Digital Ground
7. VCC - Supply Power Supply
8. DGND - - Digital Ground
9. VCC - Supply Power Supply
10. DGND - - Digital Ground
11. VCC - Supply Power Supply
12. DGND - - Digital Ground
13. Reserved for future use
14. ON/OFF I Internal pull up,
open drain
Turns the module on/off
Former WAKE_B
15. SIMVCC - Dig. 3/5 V SIM card power supply
Power output for SIM Card from module
16. SIMPRESENCE I Internal pull up,
open drain
SIM Presence
A "1" shall indicate that the SIM is missing;
a "0" that it is inserted.
17. SIMRST O Dig. 3/5 V SIM card reset
18. SIMDATA I/O Dig. 3/5 V SIM card data
19. SIMCLK O Dig. 3/5 V SIM card clock
20. DAC O Analogue Digital to Analogue converter
21. IO1 I/O Digital, 2.75 General purpose input/output 1
22. IO2 I/O Digital, 2.75 General purpose input/output 2
23. IO3 I/O Digital, 2.75 General purpose input/output 3
24. IO4 I/O Digital, 2.75 General purpose input/output 4
25. VRTC I Supply 1.5 V Voltage for real time clock
26. ADC1 I Analogue Analogue to Digital converter 1
27. ADC2 I Analogue Analogue to Digital converter 2
28. ADC3 I Analogue Analogue to Digital converter 3
29. SDA I/O 2.75, internal
pullup
I
2
C Data
30. SCL O 2.75, internal
pullup
I
2
C Clock
31. BUZZER O Dig. 2.75 Buzzer output from module