CPU board to peripheral board 'Adapter board' fits between CPU board ando peripheral board Pinout of the connector on the Adapter board __ | GPIO_18 GND GPIO_17 LCD(0) GND . GPIO_B(1) . GPIO_B(0) . L_BIAS . L_PCLK . L_FCLK L_LCLK LCD(7) GPIO(9) GPIO(2) . . . . GPIO(6) GPIO(5) | --