Allwinner R128

High-performance far-field and AI-based speech recognition applications

Overview

Allwinner R128 is a highly integrated wireless audio SoC with high performance. It features XuanTie RISC-V CPU, HiFi5 DSP, 802.11b/g/n WLAN, dual-mode Bluetooth subsystem, voice & audio codec subsystem, and Power Management Unit (PMU). RISC-V C906 CPU and HiFi5 DSP provide powerful, energy-efficient computing power for applications and audio processing.

Allwinner R128 integrates 3 differential ADCs and 2 differential DACs, which can be applied to microphone array-based voice recognition and stereo audio playback solutions. Wi-Fi and Bluetooth enable Allwinner R128 to implement various network applications. It also integrates JPEG encoder, RGB display engine, and 2D graphics acceleration system, making it possible to be used for display applications.

Highlights

High Integration

Allwinner R128 integrates powerful processors, high-quality audio Codec, WiFi, Bluetooth, power supply, graphic and display system, and rich peripheral interfaces. It provides solid voice interaction solutions.

High Performance

Cadence’s Tensilica HiFi 5 DSP is optimised for high-performance far-field processing and AI-based speech recognition processing, with improved audio and neural network processing power.

Network

Wi-Fi and Bluetooth combo technology simplifies and enhances network connection and data transmission, making it more efficient and user-friendly.

High Security

TrustZone-based architecture, combined with multiple secure designs, ensures a robust and secure runtime environment for the application system, safeguarding it against potential threats.

Block diagram

 

Specifications

 

CPU, DSP, Memory

XuanTie 64-bit RISC-V CPU up to 600 MHz

Cadence HiFi5 DSP, up to 400 MHz, 2x audio and 4x NN processing power as HiFi4

Arm-Star ARMv8-M MCU up to 240 MHz

1MB SRAM

SiP 8 MB Flash & 8 MB OPI PSRAM in R128-S1

SiP 16 MB Flash & 16 MB OPI PSRAM in R128-S2

SiP 32 MB OPI PSRAM in R128-S3

2048-bit efuse

 

WLAN

Compatible with 802.11b/g/n standard

Single-band 2.4G 1T1R WLAN

WPA/WPA2/WPA3 personal, WPS

Integrated LNA PA and T/R switch

STA, AP, STA/AP, and Monitor modes

Supports Wi-Fi and Bluetooth Co-existence

TX Power:

20 dBm@11b, 1M

15 dBm@11n, MCS7

RX Sensitivity:

-98.5 dBm@11b, 1M

-74.5 dBm@11n, MCS7

 

Bluetooth

Dual-mode BT5.0

Bluetooth specification v5.0, compatible with v4.0/4.1/4.2 devices

Bluetooth Low Energy 1 Mbps, 2 Mbps, and long range

TX Power: -20 dBm to 20 dBm

RX Sensitivity:

-95.0 dBm@BR

-99.5 dBm@BLE 1 Mbps

-106 dBm@BLE S = 8

 

Power Management

2.5 V to 5.5 V single power supply integrated with DC-DC

Support DCXO with internal oscillator circuit, 24/26/40 MHz

Internal LPO for low power mode

Internal temperature sensor

 

Audio

3 ADCs, 96 dBc SNR, 24-bit, 8 KHz to 96 KHz sample rate

2 DACs, 120 dBc SNR, 110 dBc DNR, 24-bit, 8 KHz to 384 KHz sample rate

5-band DRC and 20-band hardware EQ

I2S/TDM/PCM: 8-32 bit, TDM supports 16 channels

DMIC: 4 channels support max 8 DMICs input

Support hardware voice activation detection (VAD)

 

Image and Graphic

Support 8-bit parallel camera interface

Support JPEG encoder, 1920 x 1088@15fps

Support Graphic 2D accelerator with rotate, mixer

Support RGB output interface, up to 1024 x 768@60fps

 

Security

TEE: TrustZone-M

Secure boot

Secure memory/eFuse

JTAG/SWD protection

Flash encryption/decryption

HW crypto engine (RSA/AES/DES/3DES/MD5/SHA/SHA256/TRNG)

 

Peripherals

USB2.0 HS/FS OTG

3 UART interfaces, with RTS/CTS

2 SPI interfaces

8 PWM out

8 10-bit SAR GPADC

2 TWI interfaces

1 SD2.0/SDIO2.0 Host Controller

1 CSI interface

1 TCON interface

 

Package

QFN808mmx8mm