... follows: 1, USB HOST interfaces; 2, USB Device Interface 3 way 232, 3-way TTL serial port; 4,100 M network interface 6, TV ... the way directed; 13, Camera Interface 14, headphone jack, 1.5W speaker interfaces; 15, IIC ADC SPI Interface 16,10-bit code switch ... BOOT Stubbs; 17, SIM300 GPRS module interface 18, SIRFIII GPS module interface (including the antenna ...