Smart Machine Smart Decision
SIM800C_Hardware_Design_V1.02
3
2015-4-27
Contents
Version History............................................................................................................ 8
1.
Introduction.......................................................................................................... 9
2.
SIM800C Overview ............................................................................................. 9
2.1.
SIM800C...............................................................................................................................9
2.2.
SIM800C Key Features.........................................................................................................9
2.3.
Operating Mode .................................................................................................................. 11
2.4.
Functional Diagram.............................................................................................................12
3.
Package Information ......................................................................................... 13
3.1.
Pin Out Diagram .................................................................................................................13
3.2.
Pin Description....................................................................................................................13
3.3.
Package Dimensions ...........................................................................................................15
4.
Application Interface......................................................................................... 17
4.1.
Power Supply ......................................................................................................................17
4.1.1. Power
Supply Pin................................................................................................................................ 18
4.1.2. Monitoring Power Supply ................................................................................................................... 19
4.2.
Power on/off SIM800C.......................................................................................................19
4.2.1. Power on SIM800C............................................................................................................................. 19
4.2.2. Power
off SIM800C ............................................................................................................................ 20
4.3.
Power Saving Mode............................................................................................................22
4.3.1. Minimum
Functionality Mode ............................................................................................................ 22
4.3.2. Sleep Mode 1 (AT+CSCLK=1) .......................................................................................................... 22
4.3.3. Wake Up SIM800C from Sleep Mode 1............................................................................................. 23
4.3.4. Sleep Mode 2 (AT+CSCLK=2) .......................................................................................................... 23
4.3.5. Wake Up SIM800C from Sleep Mode 2............................................................................................. 23
4.4.
Power Saving Mode............................................................................................................23
4.5.
Serial Port and USB Interface.............................................................................................24
4.5.1
Function of Serial Port ........................................................................................................................ 25
4.5.2 Serial
Interfaces................................................................................................................................... 25
4.5.3 Debug
Interface................................................................................................................................... 27
4.5.4 Software Upgrade................................................................................................................................ 28
4.6.
UART1_RI Behaviors.........................................................................................................28
4.7.
Audio Interfaces..................................................................................................................29
4.7.1. Speaker Interfaces Configuration........................................................................................................ 30
4.7.2. Microphone Interfaces Configuration ................................................................................................. 30
4.7.3. Audio
Electronic Characteristic .......................................................................................................... 30
4.7.4. TDD .................................................................................................................................................... 31
4.8.
SIM Card Interface..............................................................................................................31
4.8.1. SIM
Card Application ......................................................................................................................... 31
