Although designing the FT800 into a product is easy, it does require some forethought. The hardware portion is straight-forward. The FT800 can interface to any MCU with either a 4-wire SPI master or I²C master port. The SPI interface can operate at speeds up to 30 Mbps, while the I²C interface can operate with all standard speeds, including high-speed at 3.4Mbps. One MCU GPIO output is needed for the FT800 Power Down input. One MCU GPIO input with interrupt capabilities is needed to connect to the FT800 interrupt output. In addition to the MCU interface, a suitable LCD also needs to be selected. The FT800 can operate with displays up to 512 x 512 pixels. Most common designs will use QVGA at 320 x 240 pixels or WQVGA at 480 x 272 pixels. The LCD data and control pins connect directly to the RGB, HSYNC, VSYNC and DE signals. The FT800 outputs six bits for each color: red, green, and blue. If the selected LCD has additional inputs, simply connect the most significant bits of each color to the FT800.  There is also a PWM output for backlight brightness control. The FT800 touch controller connects directly to a 4-wire resistive touch panel, often integrated with the LCD assembly. Finally, the audio PWM output of the FT800 connects to an external filter and audio amplifier suitable to drive a speaker.