NC1NC2MOSI/GPIO03VSSD4NC5NC6NC7NC8NC9VCCD_PWM10SPK+11VSSD_PWM12VSSD_PWM13SPK-14VCCD_PWM15NC16NC17NC18NC19NC20INTB/GPIO321RDY/BSYB/GPIO422NC23NC24NC25VCCD26GPIO527NC28MISO/GPIO229SCLK/GPI130SSB31NC32EP33