Table of Contents
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LPM2100 bg NB Module Hardware Usage Guide
Chapter 1. Introduction...........................................................................................................- 4 -
Chapter2. Module review....................................................................................................... - 5 -
2.1 Module introduction................................................................................................. - 5 -
2.2 Main performance.................................................................................................... - 6 -
2.3 Module functional block diagram............................................................................ - 7 -
2.4 Module working mode............................................................................................. - 8 -
Chapter 3. Interface application description...........................................................................- 9 -
3.1 Chapter overview......................................................................................................- 9 -
3.2 Module interface.......................................................................................................- 9 -
3.2.1 LPM2100 bg pin distribution map............................................................. - 9 -
3.2.2. Module pin description...............................................................................- 10 -
3.3 Power interface.......................................................................................................- 13 -
3.3.1 VBAT interface............................................................................................- 13 -
3.3.2 VDD_EXT Voltage output.......................................................................... - 13 -
3.4 Switching machine reset mode...............................................................................- 14 -
3.4.1 Boot............................................................................................................. - 14 -
3.4.2 Shut down....................................................................................................- 14 -
3.4.3 Reset............................................................................................................ - 15 -
3.5 UART interface...................................................................................................... - 16 -
3.5.1 Serial application circuit..............................................................................- 17 -
3.6 Power saving technology........................................................................................- 18 -
3.6.1 PSM............................................................................................................. - 18 -
3.6.2 DRX.............................................................................................................- 19 -
3.6.3 eDRX...........................................................................................................- 20 -
3.7 SIM interface.......................................................................................................... - 20 -
3.7.1 SIM card reference circuit........................................................................... - 21 -
3.7.2 SIM_DECT Hot Swap Reference Design *................................................ - 21 -
3.8 ADC interface.........................................................................................................- 23 -
3.9 SPI interface........................................................................................................... - 23 -
3.10 I2C bus................................................................................................................. - 24 -
3.11 Network indication interface*.............................................................................. - 24 -
3.12 General purpose GPIO interface.......................................................................... - 25 -
3.13 Other interface...................................................................................................... - 25 -
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