R40
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| R40 | |
|---|---|
 | |
| Manufacturer | Allwinner |
| Process | 40 nm |
| CPU | Quad-Core ARM Cortex-A7 @ 1.2 GHz |
| Extensions | Thumb-2, Jazelle RCT, NEOS, VFPv4, LPAE |
| Memory | LPDDR2/LPDDR3/DDR2/DDR3/DDR3L |
| GPU | Mali400 MP2 |
| Connectivity | |
| Video | CPU/RGB LCD, LVDS, MIPI DSI, HDMI V1.4 |
| Audio | I2S, PCM |
| Storage | MMC, NAND, eMMC, Nor Flash, SATA |
| USB | OTG, 2x Host |
| Website | http://www.allwinnertech.com/index.php?c=product&a=index&id=56 |
Allwinner R40 (sun8i) SoC features a Quad-Core Cortex-A7 ARM CPU, and a Mali400 MP2 GPU from ARM. It is a not-pin-compatible quad core sucessor of the A20. It's also known as the Allwinner T3 for In-Car Entertainment usage. A40i and A40pro are variants that differ in applicable temperatures range (industrial and military). V40 is a remarked R40.
Overview
The chip is decently supported in mainline U-Boot and the mainline kernel, with features like HDMI video, Ethernet, USB, SATA and Mali 3D working.
There is no support for the R40 in the (obsolete) linux-sunxi 3.4 kernel and in u-boot-sunxi.
R40 SoC Features
- CPU
- ARM Cortex-A7 Quad-Core
- 512 KB L2-Cache (shared between four cores)
- 32 KB (Instruction) / 32 KiB (Data) L1-Cache per core
- SIMD NEON, VFP4
- Large Physical Address Extensions (LPAE) 1 TB
- GPU
- ARM Mali400 MP2
- Featuring 1 vertex shader (GP) and 2 fragment shaders (PP).
- Complies with OpenGL ES 2.0
- Memory
- DDR2/DDR3/DDR3L/LPDDR2/LPDDR3 controller up to 2GB address space
- NAND Flash controller and 64-bit ECC
- Storage
- SATA 1,5Gb/s + 3,0Gb/s, SATA spec 2.6, AHCI Revision 1.3
- Video
- Full HD 1080p video decoding of MPEG-2, MPEG-4 SP/ASP GMC, H.263, H.264, WMV9/VC-1, and VP8
- BD Directory, BD ISO and BD m2ts video decoding
- H.264 High Profile 1080p @ 45 fps encoding
- Complies with RTSP, HTTP,HLS,RTMP,MMS streaming media protocol
- Display
- Supports output size up to 2048x2048
- CPU/RGB/LVDS LCD interface 1920x1080@60fps
- MIPI 4 lane DSI interface up to 1920x1080@60fps resolution
- TV out: 4-ch CVBS, 1-ch YPbPr and 1-ch VGA
- HDMI v1.4 with HDCP 1.2, up to 1920x1080@60fps
- Camera
- 4-channel TVIN
- Dual-sensor support
- Audio
- Integrated HI-FI 100 dB Audio Codec
- Dual MIC noise cancellation
- PMIC
- AXP221s
Documentation
- R40 User Manual v1.0 (PDF, 784 pages, 2016-07-12)
- R40 Datasheet v1.0 (PDF, 82 pages, 2016-07-12)
- File:Allwinner T3 User Manual V1.0 cleaned.pdf
- File:Allwinner T3 Datasheet V1.6 cleaned.pdf
- File:Allwinner A40i Datasheet V1.1 cleaned.pdf
- File:Allwinner A40i User Manual V1.1 cleaned.pdf
Software
Source code and instructions are here