I2C-Bus InterfaceEP33TXA32CTSA#31RTSA#30VSS29VDD28GPIO7/RIA#27GPIO6/CDA#26GPIO5/DTRA#25GPIO4/DSRA#24RXB23TXB22VSS21GPIO3/RIB#20GPIO2/CDB#19GPIO1/DTRB#18GPIO0/DSRB#17RTSB#16CTSB#15IRQ#14VDD13VSS12SDA11SCL10NC9A18A07I2C6VDD5XTAL24XTAL13RESET#2RXA1