5.10.1

 

PCM DATA FORMAT.........................................................................................

53

5.11

SERIAL DATA INTERFACES ...................................................................................

55

5.11.1

 

UART1.............................................................................................................

56

5.11.2 SERIAL DATA SIGNALS (DTM1, DFM1)...............................................................

56

5.11.2.1 SERIAL DATA FROM WIRELESS MODEM (DFM1) ..............................................

57

5.11.2.2 SERIAL DATA TO WIRELESS MODEM (DTM1) ..................................................

57

5.11.3 CONTROL SIGNALS (RTS1, CTS1, DTR1, DSR1, DCD1, RI)..................................

57

5.11.3.1 HARDWARE FLOW CONTROL RTS1 AND CTS1 ...............................................

57

5.11.3.2 REQUEST TO SEND (RTS1).............................................................................

57

5.11.3.3 CLEAR TO SEND (CTS1) ................................................................................

58

5.11.3.4 DATA TERMINAL READY (DTR1) ....................................................................

58

5.11.3.5 DATA SET READY (DSR1) ..............................................................................

58

5.11.3.6 DATA CARRIER DETECT (DCD1) ....................................................................

58

5.11.3.7

RING INDICATOR (RI) ....................................................................................

58

5.11.4

 

UART3 (DTM3, DFM3) ......................................................................................

59

5.11.4.1

TRANSMITTED DATA (DTM3) ........................................................................

59

5.11.4.2

RECEIVED DATA (DFM3)................................................................................

59

5.11.5

 

USB .................................................................................................................

60

5.11.6

 

SIM CARD INTERFACE ......................................................................................

61

5.11.7

 

SIM DETECTION (SIMDET).................................................................................

62

5.12

SERVICE/PROGRAMMING .....................................................................................

62

5.13

BUZZER ...............................................................................................................

63

5.14

LED.....................................................................................................................

63

5.15

GENERAL PURPOSE IO..........................................................................................

65

5.15.1

 

EMBEDDED APPLICATIONS ...............................................................................

66

5.15.2

 

LED/IO6 CAPABILITIES .....................................................................................

66

5.15.3

 

ADC4 ..............................................................................................................

66

5.16

DIGITAL TO ANALOGUE CONVERTER – DAC .........................................................

67

5.17

ANALOGUE TO DIGITAL CONVERTERS (ADIN1, ADIN2, ADIN3, ADIN4)..................

67

5.18

I2C SERIAL CONTROL BUS ....................................................................................

69

5.19

BURST TRANSMISSION (TX_ON)............................................................................

70

5.20

REAL TIME CLOCK ...............................................................................................

70

5.20.1 REAL TIME CLOCK BACKUP SUPPLY (VRTC) .......................................................

71

5.20.2

 

RTC ALARM (ALARM) .......................................................................................

72

5.20.2.1 ALARM OUTPUT FROM THE MODULE ............................................................

72

5.20.3 ALARM UTILIZATION AS A WAKE-UP.................................................................

73

6 Antenna Connector ..............................................................................

74

 

 

LZT 123 1834

5