The Silicon Labs EFR32xG22 wireless Gecko starter kit ?(SLWSTK6021A) includes everything needed to enable developers to create a mesh network and evaluate the EFR32xG22 Series 2 Wireless Gecko SoCs.
32-bit ARM® Cortex®-M33 core with 76.8MHzmAximum operating frequency 12-channel Peripheral Reflex System enabling autonomous interaction of MCU peripheral