... audio output, support for two output, two-way entry. And support the TOUCH function. Phone ... USB HOST interfaces; 2, USB Device Interface 3 way 232, 3-way TTL serial port; 4,100 M network ... way directed; 13, Camera Interface 14, headphone jack, 1.5W speaker interfaces; 15, IIC ADC SPI Interface 16,10-bit code switch ... -line of a serial lines 1 a development board (with 4.3 "LCD) supporting a number of ...