efr32xg21rm v0.4All_Chapters.pdf Silicon Labs EFR32xg21 series 2 reference guide for developing Zigbee, Bluetooth application.
Si470203C19 TheSi4702/03-C19’spatenteddigitallow-IF architecturereducesexternalcomponentsand eliminatestheneedforfactoryadjustments.Thereceive(RX)sectionintegrate
efr32mg21datasheetv1.0.pdf EFR32MG21datasheet,protocolsupport:BluetoothLowEnergy(Bluetooth5),ZigbeeandThread.