The tft01 the lcd is operating at 3.3v, this can not be directly used in the standard arduino motherboard on top, so in order to make the tft01 the lcd is compatible with the arduino on the motherboard used in the standard, designed this section of tft shield, can be directly inserted in the arduino on the motherboarduse the tft01 the lcd module. the tfr01 mega shield v1.0 supports both 16 bit mode.because of mega board have enough pins for using sd card and touch function at the same time.