Allwinner R311

Quad-core intelligent hardware processor

Overview

Allwinner R311 is a powerful processor featuring quad-core Cortex-A7 CPU operating with up to 1.8GHz high frequency. It also integrates dual-core Mali-400 GPU, H.265 1080p@60fps video decoder, H.264 1080p@60fps encoder, 13MP camera ISP, and TrustZone. To deliver better architecture scalability, Allwinner R311 comes with extensive connectivity and interfaces, such as MIPI DSI, RGB/LVDS LCD, USB OTG/Host, SPI, UART, TWI, PWM, and LRADC. These features enable R311 to reduce the cost of the overall plan and support the development requirements of a variety of products.

Highlights

High power efficiency

Allwinner R311 balances between strong computing power and low power consumption. The 1.8GHz quad-core A7 CPU and 600MHz dual-core Mali-400 GPU make it suitable to handle challenging system tasks. Manufactured by 28nm state-of-the-art process, minimum power consumption is assured.

Advanced memory controller

Allwinner R311 supports mainstream memory technology including DDR3, DDR3L, LPDDR3, DDR4, and LPDDR4, which brings more flexibility. Customers can choose the most competitive memory components from their supply chain.


Support 3D TLC NAND flash

Integrated with state-of-the-art LDPC technology, the performance of Allwinner R311’s NAND flash controller is three times better than traditional NAND flash controller with BCH technology. Customers are able to adopt 3D TLC NAND flash in their system to get additional value.


Strong multimedia support

Entertainment is always the key scenario for most tablet users. Allwinner R311 supports popular video formats like H.265 1080p 60fps, H.264 1080p 60fps, and VP9 decoder 720p@30fps. H.264 1080p 60fps encoding is also supported.


13MP embed ISP

Thanks to its embed mipi-csi camera ISP, Allwinner R311 offers the possibility for customers to capture a picture of up to 13M pixel when the device is configured with corresponding resolution camera module.


Quick charge

Accompanied by its dedicated PMIC, the Allwinner R311 solution is capable of supporting a quick charge feature, significantly reducing charging time and offering users a more efficient and convenient experience.


Block diagram

 

Specifications

 

CPU

Quad-core ARM® Cortex™-A7 @1.8GHz

 

GPU

Mali400 MP2

Support OpenGL ES 2.0/1.1, Direct3D 11.1, OpenVG 1.1

 

Memory

Support 32-bit DDR4/DDR3/DDR3L/LPDDR3/LPDDR4

Support eMMC 5.0 and Full Disk Encryption (FDE)

Support 8-bit TLC/MLC/SLC/EF NAND flash and FDE

Support LDPC, BCH (80bits/1024bytes)

 

Video engine

Support HEVC decoder 1080p@60fps

Support VP9 decoder 720p@30fps

Support H.265 decoder 1080p@60fps

Support multi-format 1080p@60fps video playback, including VP8, MPEG1/2, MPEG4-XVID SP/ASP, H.263, and WMV7/8

Support H264 HP encoder 1080P@60fps

Support three bit rate control: CBR, VBR, FIXQ

Support JPEG encoder 4096 x 4096

 

Video input

Compliant with MIPI-CSI2 V1.00 and MIPI DPHY V1.00.00

1/2/3/4 Data Lanes Configuration and up to 1Gbps per Lane in HS Transmission

Maximum of 13M@15fps, 8M@30fps with four data lanes

Support formats YUV422-8bit/10bit, YUV420-8bit, RAW-8, RAW-10, RAW-12, RGB888, RGB565

 

ISP

Maximum picture resolution of 4224x3168

Adjustable 3A functions, including automatic exposure (AE), automatic white balance (AWB), and automatic focus (AF)

Support spatial (2D) de-noise filter

Support contrast enhance and sharpening

Support chrominance noise reduction

Support defect pixel correction

 

Audio

Support two audio DAC and one audio ADC

Support three analog audio inputs and one analog audio output

Capless stereo headphone driver

Up to two I2S/PCM controllers for connecting Bluetooth and external audio codec

Integrated digital microphone, supporting maximum eight digital microphones

 

Display engine

Support output size up to 1920 x 1200

Four alpha blending channels for main display

Four overlay layers in each channel, with a independent scaler

Support SmartColor2.0 post processing for an excellent display experience

Support Frame Packing/Top-and-Bottom/Side-by-Side Full/Side-by-Side Half 3D format data

 

Display output

Support one channel MIPI DSI output, with MIPI DSI being four-lane

Support LVDS interface with single link, up to 1366 x 768@60fps

Support RGB interface with DE/SYNC mode, up to 1920 x 1080@60fps

 

Security engine

Support symmetrical algorithm: AES, DES, 3DES, and XTS

Support Hash algorithm: MD5, SHA, HMAC

Support Pubic Key algorithm: RSA, ECC

Support 160-bit hardware PRNG with 175-bit seed

Support 256-bit hardware TRNG

Support 2.5K-bit EFUSE for chip ID and security application

 

Connectivity

USB Host, USB 2.0 OTG

SDIO 3.0, RSB

4 x TWI, 2 x SPI

6 x UART, 3 x PWM

GPADC, LRADC

 

WiFi

XR829 or others

 

OS

Android 8.1 or above

 

PMIC

PMU AXP2585

BMU AXP15060

 

Package

FBGA 413balls

12.3mm x 12.8mm size, 0.5 ball pitch, 0.3 ball size

 

Process

28nm HPC