User's Manual
Table Of Contents
- Contents
- Figures
- Tables
- Document history
- Introduction
- Product concept
- GSM application interface
- GSM/GPRS operating modes
- Power supply
- Power up / down scenarios
- Automatic GPRS Multislot Class change
- Charging control of the GSM part
- Power saving
- Summary of state transitions (except SLEEP mode)
- RTC backup for GSM part of XT55/56
- Serial interfaces of the XT55/56 GSM part
- Audio interfaces
- SIM interface
- Control signals
- GPS application interface
- GSM and GPS antenna interfaces
- Electrical, reliability and radio characteristics
- Mechanics
- Reference approval
- Example applications
- List of parts and accessories
XT55/56 Hardware Interface Description
Confidential / Released
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XT55/56_hd_v02.06a Page 52 of 125 17.12.2004
GSM_RTS1 can be used to temporarily wake up XT55/56 for the time specified with
the AT^SCFG command (default = 2s).
2)
Recommendation: In NON-CYCLIC SLEEP mode, you can set an RTC alarm to wake
up XT55/56 and return to full functionality. This is a useful approach because, in this
mode, the AT interface is not accessible.