CRX1p1CRX1n2POL3CTX1p4CTX1n5CTX2p6CTX2n7AMSEL8CRX2p9CRX2n10CSBU111CSBU212SBU113SBU214LnAn15LnAp16EN17LnBn18LnBp19LnCn20LnCp21VCC22LnDn23LnDp24SSTXn25SSTXp26SSRXn27SSRXp28GND29