Allwinner A20 - 1.1. Overview

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 10 / 812
1.1. Overview
Allwinner A20 processor is a dual-core ARM Cortex-A7 mobile application solution designed for tablet and
smart TV applications.
A20 processor is based on a dual-core ARM Cortex-A7 CPU architecture, which is the most energy
efficient application processor from ARM so far and incorporates all the features of Cortex-A15. It also
integrates the powerful ARM Mali400 MP2 GPU, delivering a reliable system performance as well as good
game compatibility. Besides, A20 supports 2160p video decoding and H.264 HP 1080p video encoding.
Additionally, A20 processor features a wide range of interfaces and connectivity, including 4-CH CVBS in,
4-CH CVBS out, HDMI with HDCP, VGA, LVDS/RGB LCD, SATA, USB, and GMAC, etc. More
importantly, A20 processor is pin-compatible with its predecessor A10, which greatly simplifies the product
design process and makes the upgrade of a design much easier.
The A20 features are listed below:
Dual-Core CPU
● Dual Cortex-A7
– ARMv7 ISA standard ARM instruction set
– Thumb-2
– Jazeller RCT
– NEON Advanced SIMD
– VFPv4 floating point
– Hardware virtualization support
– Large Physical Address Extensions(LPAE)
– JTAG debug
– One general timer for per CPU
– 32KB Instruction and 32KB Data L1 cache for per CPU
– 256KB L2 cache
Graphic Engine
● 3D
– Mali400 MP2 GPU
– Support OpenGL ES 2.0 / OpenVG 1.1 standard
● 2D
– Support BLT and ROP2/3/4
– Support 90° /180° /270° rotation