M12 Hardware Design
M12_Hardware_Design_V3.3 - 4 -
Table Index
TABLE 1: RELATED DOCUMENTS ............................................................................................. 8
TABLE 2: TERMS AND ABBREVIATIONS .................................................................................. 9
TABLE 3: MODULE KEY FEATURES ........................................................................................ 13
TABLE 4: CODING SCHEMES AND MAXIMUM NET DATA RATES OVER AIR
INTERFACE .................................................................................................................. 15
TABLE 5: PIN DESCRIPTION ...................................................................................................... 18
TABLE 6: OVERVIEW OF OPERATING MODES ...................................................................... 24
TABLE 7: SUMMARY OF STATE TRANSITION ....................................................................... 35
TABLE 8: LOGIC LEVELS OF THE SERIAL INTERFACE ....................................................... 38
TABLE 9: PIN DEFINITION OF THE SERIAL INTERFACES ................................................... 38
TABLE 10: PIN DEFINITION OF AUDIO INTERFACE ............................................................. 45
TABLE 11: TYPICAL ELECTRET MICROPHONE CHARACTERISTIC ................................. 49
TABLE 12: TYPICAL SPEAKER CHARACTERISTIC ............................................................... 50
TABLE 13: PIN DEFINITION OF THE SIM INTERFACE .......................................................... 50
TABLE 14: PIN DESCRIPTION OF AMPHENOL SIM CARD HOLDER .................................. 53
TABLE 15: PIN DESCRIPTION OF MOLEX SIM CARD HOLDER ......................................... 54
TABLE 16: PIN DEFINITION OF THE ADC ............................................................................... 55
TABLE 17: CHARACTERISTICS OF THE ADC ......................................................................... 55
TABLE 18: BEHAVIORS OF THE RI ........................................................................................... 55
TABLE 19: WORKING STATE OF THE NETLIGHT .................................................................. 57
TABLE 20: PIN DEFINITION OF THE STATUS ......................................................................... 58
TABLE 21: PIN DEFINITION OF THE GPIO INTERFACE ....................................................... 58
TABLE 22: PIN DEFINITION OF THE SD CARD INTERFACE ............................................... 59
TABLE 23: PIN NAME OF THE SD CARD AND T-FLASH(MICRO SD) CARD ..................... 60
TABLE 24: PIN DEFINITION OF THE RF_ANT ........................................................................ 61
TABLE 25: THE MODULE CONDUCTED RF OUTPUT POWER ............................................ 62
TABLE 26: THE MODULE CONDUCTED RF RECEIVING SENSITIVITY ............................ 62
TABLE 27: THE MODULE OPERATING FREQUENCIES ........................................................ 62
TABLE 28: ABSOLUTE MAXIMUM RATINGS ......................................................................... 64
TABLE 29: OPERATING TEMPERATURE ................................................................................. 64
TABLE 30: THE MODULE POWER SUPPLY RATINGS ........................................................... 65
TABLE 31: THE MODULE CURRENT CONSUMPTION .......................................................... 66
TABLE 32: THE ESD ENDURANCE (TEMPERATURE:25℃,HUMIDITY:45 %) .................... 67
TABLE 33: DESCRIPTION OF DIFFERENT CODING SCHEMES ........................................... 73
TABLE 34: GPRS MULTI-SLOT CLASSES ................................................................................ 74
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