Data Sheet
     Smart Machine Smart Decision 
SIM800F_Hardware Design_V1.00 60    2015-07-31 
II.  Multiplex Function 
Table 54: Multiplex Function 
Pin name  Pin No.
Reset 
status 
Mode 0 (default) Mode 1  Mode 2  Mode 3 
DISP _CLK  11  I/PU  GPIO  DISP _CLK  SPI_CLK  PCM_IN 
DISP_DATA  12  I/PD  GPIO  DISP_DATA  SPI_MOSI  PCM_OUT 
DISP_D/C  13  I/PD  GPIO  DISP_D/C  SPI_MISO  PCM_SYNC 
DISP_CS  14  O/H  GPIO  DISP_CS  SPI_CS  PCM_CLK 
PWM1  35  I/PD  PWM1  GPIO  EINT  - 
PWM2  36  I/PD  PWM2  GPIO  -  - 
SDA  37  I/PU  GPIO  SDA  -   
SCL  38  I/PU  GPIO  SCL  -   
KBR4  40  I/PD  GPIO  KBR4  -   
KBR3  41  I/PD  GPIO  KBR3  EINT   
KBR2  42  I/PD  GPIO  KBR2  -   
KBR1  43  I/PD  GPIO  KBR1  EINT   
KBR0  44  I/PD  GPIO  KBR0  -   
KBC4  47  I/PU  GPIO  KBC4  -   
KBC3  48  I/PU  GPIO  KBC3  EINT   
KBC2  49  I/PU  GPIO  KBC2  -   
KBC1  50  I/PU  GPIO  KBC1  -   
GPIO10  51  I/PD  GPIO  UART2_RXD -   
GPIO11  67  O/L  GPIO  RF_SYNC  JD   
GPIO12  68  I/PD  GPIO  UART2_TXD    
NETLIGHT  52  I/PD  NETLIGHT  GPIO  -   
STATUS  66  I/PD  STATUS  GPIO  -   










