2. Features
CPU
 CMOS single-chip fully-integrated PMU, CODEC, RF, BB, MCU and AP subsystem
 300MHz ARM Cortex-M33 Star dual-core MCU subsystem
 1GHz ARM Cortex-A7 dual-core AP subsystem with NEON.
 Shared 2MB SRAM, on-chip PSRAM and on-chip NOR flashNote1
 Support TrustZone and secure boot
Wi-Fi / BT
 2.4GHz & 5GHz dual-band Wi-Fi, 1T1R, compliant to IEEE 802.11a/b/g/n
 Support 20MHz and 40MHz bandwidth
 Bluetooth 5.2 dual-mode
 Support BLE Mesh and LE audio
 A2DP v1.3/AVRCP v1.5/HFP v1.6
 Wi-Fi and Bluetooth co-existence
Audio
 Hi-Fi Stereo Audio DAC and ADC
 Far-field voice wake up
 24bit audio processing
 Support Acoustic Echo Cancellation
 Support DSD-64/128/256 decode
Peripheral interfaces
 MIPI Tx DSI and MIPI Rx CSI interface
 USB2.0 HS Host or Device
 4x UART interface, with flow control and configurable baud rate
 50Mbps SPIx2, with serial LCD support
 1.4Mbps I2C master x3
 I2S/TDM
 PWMx8
 10-bit GPADC, 3 channels