A83T

A83T
Manufacturer	Allwinner
Process	28nm HPC
CPU	Octa-core Cortex-A7 @ 1.6GHz
Extensions	CoolFlex
Memory	dual-channel DDR3/DDR3L/LPDDR2/LPDDR3, up to 2GB
GPU	Power VR SGX544MP1
VPU	Video decoding MPEG 1/2/4, H.263, H.264, WMV9/VC-1, VP8
Connectivity
Video	HDMI 2K output, RGB LCD 1920x1200@60Hz, LVDS 1366x768@60Hz, 4-lane MIPI DSI 1920x1200@60fps
Network	EMAC ????
Storage	3x SD/MMC, eMMC4.41
USB	USB Host, USB 2.0 Dual-Role (host/device)
Release Date	September 2014
Website	Product Page

This is the fourth Allwinner SoC which uses Power VR instead of MALI for GPU. See also SoCs A31, A31s and A80.

The H8 and R58 are nearly identical variants of the A83T.

Overview

A product verification board was created and several boards were sent to developers that applied for them. That board came with buildroot and Linux 3.4. There was no GUI in that image.

A83T SoC Features

• CPU:
  • ARM Cortex-A7 Octa-Core
  • 256KB L1-Cache
  • 1MB L2-cache(512KB per Cluster)
  • 32bit address bus with 2GB usable RAM
• GPU:
  • Power VR SGX544MP1
  • Comply with OpenGL ES1.1/2.0, OpenCL1.1 and DirectX 9.3
• Video:
  • Support video playback up to 1080p@60ps
  • Support multi-format video playback, including MPEG1/2, MPEG4 SP/ASP GMC, H.263 including Sorenson Spark, H.264 BP/MP/HP,VP8, WMV9/VC1, JPEG/MJPEG
  • HEVC/H.265 decoder(software),Main Profile,1080p@30fps
  • Support H.264 video encoding up to 1080p@60fps,720p@120fps
  • JPEG baseline: picture size up to 8192x8192
  • Support input picture size up to 4800x4800
  • Support input format: tiled(128x32)/YU12/YV12/NU12/NV12/ARGB/YUYV
  • Support Alpha blending
  • Support thumb generation
  • Support 4x2 scaling ratio: from 1/16 to 64 arbitrary non-integer ratio
  • Support rotated input
• Display:
  • Support two independent display channels
  • Support RGB up to 1920x1200@60Hz resolution
  • Support RGB666/656 dither function
  • Support LVDS up to 1366x768@60Hz resolution
  • Support 4-lane MIPI DSI(V1.0) up to 1920x1200@60Hz resolution
  • Support HDMI V1.4 output with HDCP1.2
• Camera:
  • Compliant with MIPI-CSI2 V1.00 and MIPI DPHY V1.00.00
  • 4-lane MIPI CSI
  • Up to 1Gbps per Lane in HS Transmission
  • Maximum to 8M@30fps with 4 data lane
  • Support video shot up to 1080p@60fps
  • Supports format: YUV422-8bit/10bit,YUV420-8bit/10bit,RAW-8,RAW-10, RAW-12,RGB888,RGB565
• Memory:
  • DDR3/DDR3L/LPDDR3/LPDDR2, up to 2GB
  • Raw NAND
  • eMMC V4.41
• Connectivity
  • USB 2.0 Host, USB OTG, HSIC for chip interconnection
  • HSIC
  • Ethernet MAC
  • 2x SPI, 4x TWI, 6x UART
  • 3x SD/MMC
  • PCM/I2S
• PMIC:
  • AXP818
  • AXP813
• Audio:
  • unknown
• OS:
  • Buildroot

Rumours

• empty

Documentation

• A83T User Manual v1.5.1 (PDF, 547 pages, 2015-05-11)
• A83T Datasheet Rev 1.3 (PDF, 35 pages, 2015-04-10)
• File:A83T Datasheet V1.4.pdf (PDF, 35 pages, 2016-11-22)
• A83T Schematics v2.0 (PDF, 15 pages, 2015-04-28)
• File:AXP818 datasheet Revision1.0.pdf (PDF, 3.34 MB, 185 pages, 2014-09-12)
• AXP813 Datasheet v1.2 (PDF, 3.57 MB, 186 pages, 2015-11-15)
• Development files

Software

Boot0

Boot0 initializes the DRAM, basic clocks and loads U-boot from NAND or MMC. There is no boot1 on A83T. Boot0 directly loads U-boot.

The sources can be found under https://github.com/allwinner-zh/bootloader/tree/master/basic_loader/boot0

BSP

A83T BSP

Android device repository

U-boot

U-Boot 2011.09

Kernel code

Allwinner Kernel

A83T Linux 3.4 kernel

Devices

► A83T Boards

► A83T Tablets

► H8 Boards

Announced devices:

• Tablet InFocus C2107
• Tablet Onda V975s
• Tablet Onda V989
• "Banana Pi" M3

See also

• A31

External links

• Product Page