A83T

This SoC does NOT comply with the ARM big.LITTLE architecture, therefore it is in no way energy efficent and gets very hot. This is the fourth Allwinner SoC which uses Power VR instead of MALI for GPU. See also SoCs A31, A31s and A80.

=Overview=

A product verification board was created and several boards were sent to developers that applied for them. That board came with buildoot 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
 * 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)
 * A83T Schematics v2.0 (PDF, 15 pages, 2015-04-28)
 * AXP818_datasheet_Revision1.0.pdf

= Register guide =

Wiki
= 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

fastboot (under windows)
=Android device repository=

U-boot
U-Boot 2011.09

Allwinner Kernel
A83T Linux 3.4 kernel

Sunxi Community
= Devices =

Announced devices:
 * Tablet InFocus C2107
 * Tablet Onda V975s
 * Tablet Onda V989
 * "Banana Pi" M3

= See also =
 * A31

=References=

= External links =
 * Product Page