User's Manual

SIM345 EVB User Guide
SIM345-EVB_UGD_V1.02 15.02.2008
15
4.3 J103---GPIO
Figure 14: J3 Interface
SPI & I/O Interface Pin List:
Pin Signal I/O Description
1 SPI_IO/ SDA I/O IIC interface
2 GPO2 O General Purpose Output Port
3 SPI_CLK/ SCL O IIC interface
4 TEMP_BAT I ADC input for battery temperature
measurement
5 /RST I Reset module for emergency
6 GPIO0 I/O General Purpose Input/Output Port
7 /INTR I External interrupt input
8 GPO0 / SPI_AUX O General Purpose Output Port
9 GPI I General Purpose Input
10 SPI_EN/ GPO3 O General Purpose Output Port
11 ON/OFF I To switch on or off the module
12 VCC O Output digital power supply
13 AUXV0 I Auxiliary ADC input
14 GPIO5 I/O General Purpose Input/Output Port