VSS40VSS39VIO_D38SPICSn37SPICDO36SPICDI35SPICLK34RSTn33WAKEUP32EXTON31VSS130VDD129VDD2a28VTX_D27VDD326VSS325VSS224VDD2b23XTO22XTI21GND20GND19RF118GND17GND16GND15GND14RF213GND12GND11GND10GPIO7/SYNC9GPIO4/EXTPA8GPIO3/TXLED7GPIO2/RXLED6GPIO5/EXTTXE/SPIPOL5GPIO1/SFDLED4GPIO0/RXOKLED3GPIO6/EXTRXE/SPIPHA2IRQ1