User's Manual
Table Of Contents
- Contents
- Table Index
- Figure Index
- 0. Revision history
- 1. Introduction
- 2. Product concept
- 3. Application interface
- 3.1. Pin of module
- 3.2. Operating modes
- 3.3. Power supply
- 3.4. Power on and down scenarios
- 3.5. Charge interface
- 3.6. Power saving
- 3.7. Summary of state transition
- 3.8. RTC backup
- 3.9. Serial interfaces
- 3.10. Audio interfaces
- 3.11. SIM card interface
- 3.12. SD card interface
- 3.13. PCM interface
- 3.14. ADC
- 3.15. Behaviors of the RI
- 3.16. Network status indication
- 3.17. Operating status indication
- 4. Antenna interface
- 5. Electrical, reliability and radio characteristics
- 6. Mechanical dimensions
- 7. Storage and manufacturing
- Appendix A: GPRS coding schemes
- Appendix B: GPRS multi-slot classes
M50 Hardware Design
M50_HD_V2.0 - 59 -
Figure 36: Molex 91228 SIM card holder
Table 18: Pin description of Molex SIM card holder
Name Pin Description
SIM_VDD C1 SIM Card Power supply
SIM_RST C2 SIM Card Reset
SIM_CLK C3 SIM Card Clock
SIM_PRESENCE C4 SIM Card Presence Detection
GND C5 Ground
VPP C6 Not Connect
SIM_DATA C7 SIM Card Data I/O
SIM_DETECT C8 Pulled down GND with external circuit. When the tray is
present, C4 is connected to C8.
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