IRQ1GPIO6/EXTRXE/SPIPHA2GPIO0/RXOKLED3GPIO1/SFDLED4GPIO5/EXTTXE/SPIPOL5GPIO2/RXLED6GPIO3/TXLED7GPIO4/EXTPA8GPIO7/SYNC9GND10GND11GND12RF213GND14GND15GND16GND17RF118GND19GND20XTI21XTO22VDD2b23VSS224VSS325VDD326VTX_D27VDD2a28VDD129VSS130EXTON31WAKEUP32RSTn33SPICLK34SPICDI(SPIMOSI)35SPICDO(SPIMISO)36SPICSn37VIO_D38VSS39VSS40