XTAL_EN#1CLKOUT2CLK_CFG03CLK_CFG14RESET#5CD6TXD7RTS#8DUPLEX9RXD10IOVCC11DGND12REG_CAP13HART_OUT14REF15HART_IN16ADC_IP17VCC18AGND19XTAL220XTAL121DGND22REF_EN23FILTER_SEL24EP25