H3

Allwinner H3 (sun8iw7p1) SoC features a Quad-Core Cortex-A7 ARM CPU, and a Mali400 MP2 GPU from ARM. The Allwinner H3 is a highly cost-efficient quad-core OTT box processor, primarily marketed as being for "home entertainment" systems.

It has a nearly-compatible variant known now, H2+.

'''It's rated to run at 1.296GHz, anything higher is overclocking (and usually overvolting). If you run it without heatsink, fan and proper dvfs settings, you risk overheating.'''

=Overview= See Mainlining Effort and Mainline U-Boot for support status.

=H3 SoC Features=
 * CPU
 * ARM Cortex-A7 Quad-Core
 * 512KB L2-Cache (shared between four cores)
 * 32 KB (Instruction) / 32KiB (Data) L1-Cache per core
 * SIMD NEON, VFP4
 * Virtualization
 * Large Physical Address Extensions (LPAE) 1TB
 * GPU
 * ARM Mali400 MP2
 * Featuring 1 vertex shader (GP) and 2 fragment shaders (PP).
 * Complies with OpenGL ES 2.0
 * Memory
 * DDR2/DDR2L-DDR3/DDR3L controller
 * NAND Flash controller and 64-bit ECC
 * Video
 * Ultra HD 4k and Full HD 1080p video decoding of MPEG-2, MPEG-4 SP/ASP GMC, H.263, H.264, H.265, WMV9/VC-1, and VP8
 * BD Directory, BD ISO and BD m2ts video decoding
 * H.264 High Profile 1080P@30fps encoding
 * 3840×1080,1920x2160 3D decoding
 * Complies with RTSP, HTTP,HLS,RTMP,MMS streaming media protocol
 * Display
 * Integrated HDMI V1.4 with HDCP1.2 4K@30fps
 * TV CVBS output
 * Camera
 * Integrated parallel 8-bit I/F YUV422 sensor
 * Support CCIR656 protocol fot NTSC and PAL
 * 5M CMOS sensor support
 * Support video capture resolution up to 1080p@30fps
 * Audio
 * Two audio digital-to-analog(DAC) channels 92dB SNR
 * Two differential microphone inputs (one low-noise)
 * Stereo Linein input
 * Embedded Controller:
 * AR100, an OpenRISC controller. Manages deep powersave modes.
 * Thermal Sensor Controller (TSC) providing over-temperature protection interrupt and over-temperature alarm interrupt
 * no PMU (According to arisc_dvfs.c pmuic_type defines 0~2, 0:none, 1:gpio, 2:i2c)
 * package: FBGA347, 14 mm x 14 mm, 0.65 mm Pitch

= Variants = H2+ is a variant of H3, targeted at low-end OTT boxes, which lacks Gigabit MAC and 4K HDMI output support.

H3 images are proven to run on H2+.

According to the source code of BSP, variants differ by the last byte of the first word of SID. 0x42 and 0x83 indicates H2+, 0x00 and 0x81 indicates H3, and 0x58 indicates H3D (a still unknown variant).

= Documentation =


 * [[File:Allwinner_H3_Datasheet_V1.2.pdf]] - 614 pages, 7MB, 2015-04-23
 * Allwinner_H3_Datasheet_V1.1.pdf - 616 pages, 7MB, 2015-01-26
 * Allwinner_H3_Datasheet_V1.0.pdf - 618 pages, 7MB, 2014-11-18
 * Some 'confidental' documentation in Chinese
 * [[File:Allwinner_DE2.0_Spec_V1.0.pdf]] - 147 pages, 2.9MB, 18-01-2018
 * Display Engine 2.0 Register Guide

= Software =

Original SDK

 * SDK (External link, 3.3GB zip)
 * H2+ SDK (External link, 4.9GB tar.bz2)

= Devices =

= See also =
 * H2+
 * H5
 * Mali-400

=References=

= Software =

Mainline U-Boot
Starting with version 2016.01, the official mainline U-Boot has supported the H3 SoC and various boards with it. This is the recommended way of booting boards when not using BSP kernels.

U-Boot defconfigs still missing for these H3 boards: * Orange Pi Mini 2 (as a workaround, please use orangepi_2 defconfig) * Orange Pi Plus 2 (as a workaround, please use orangepi_plus defconfig) * pcDuino4 Nano (as a workaround, please use orangepi_one defconfig)

Sunxi Community
The mainline Linux kernel supports the H3 SoC quite well. For a more comprehensive list of supported features, see the status matrix for mainline kernels.

Device tree configs still missing for these H3 boards: * Orange Pi Mini 2 (as a workaround, please use sun8i-h3-orangepi-2.dtb) * Orange Pi Plus 2 (as a workaround, please use sun8i-h3-orangepi-plus.dtb) * pcDuino4 Nano (as a workaround, please use sun8i-h3-orangepi-one.dtb)

= External links =
 * Allwinner Product Page H3