功能特点
•ATM7021A芯片是炬力集成电路设计有限公司针对多核平板市场推出的一款双核、高集成度、超低功耗、高性价比的主控芯片。
这款芯片拥有高性能的两个CPU核心和Imagination PowerVR SGX540核心，除此之外，它还内建了独立的VPU(Video Processing Unit)引擎, 从而具有强大的视频回放和录制能力。
ATM7021A打破了“高性能=高功耗”的成见，透过炬力在猫头鹰系列上独有设计的“第二代功耗设计(LPD Gen. II, Low Power Design Generation II)”技术和“自适应动态功耗(Adaptive Dynamic Power)”技术，ATM7021A在提供卓越的性能基础上，实现了超常的电池续航时间。
•基于ATM7021A芯片的平板解决方案也提供了具有竞争力的BOM(Bill of Material)成本，这得益于这款芯片的高集成度。ATM7021A集成了平板产品必需的LVDS以及HDMI接口，并支持ELQFP176封装，此外也集成了DDR3/DDR3L存储控制器以及支持60bit ECC/Toggle NAND的flash控制器。ATM7021A通过和ATC2603X芯片(集成了PMU和Audio Code)的搭配使用，为平板电脑产品提供了一个高具性价比和竞争力的双核芯片平台。
参数指标
•CPU Subsystem
Leopard CPU, ARM Cortex-A9 family CPU, Single CPU frequency is up to 1.3GHz.
Fully comply to ARM cortex V7 instruction.
A low power and efficient two-core architecture
Programmable memory management unit.
L1 and L2 cache equipped.
Jazelle hardware acceleration supported
Advanced SIMD technology to accelerate the performance of multimedia applications such as 3-D graphics and image processing.
In-order pipeline with dynamic branch prediction equipped
256bit E-fuse equipped
•Video and Audio Encoding
H.264 1280x720@30fps
JPEG baseline, 8192x8192
Panoramic Image Mosaics supported
Photographing while video recording supported
MP3/WMA/WAV/AC3/AAC/dts formats supported (some may be done by the 3rd party applications)
•Video and Audio Decoding
Most popular video format are supported including AVI、WMV、MOV、MKV、RM、RMVB、MP4、M4V、DivX、Xvid、FLV、3GP、DAT、VOB、MPG、MPEG、ASF、TP、TRP、TS、M2TS、MTS(some may be done by the 3rd party applications)
1920x1080@30fps supported
MJPEG baseline, 8192x8192 supoorted
Most popular audio formats are supported including MP3、WMA、CBR、VBROGG、APE、FLAC、WAV、AAC、AudibleRA、AC3、dts、MIDI、AMR、AIFF、MPC (some may be done by the 3rd party applications)
•Graphic Process Unit
Frequency UP to 500MHz
3D graphics, vector graphics and video encode and decode supported on common hardware
Advanced Shader Feature Set – in excess of Microsoft VS3.0, PS3.0 & OGL2.0
Industry standard API support – Direct3D Mobile, OGL-ES 1.1 and 2.0, OpenVG 1.1, OpenMax
Advanced geometry DMA driven operation for minimum CPU interaction
Fully virtualised memory addressing for OS operation in a unified memory architecture
Texture Formats : RGBA 8888,565,1555,1565; Mono chromatic 8, 16, 16f, 32f, 32int; Dual channel, 8:8, 16:16, 16f:16f; Compressed Textures PVR-TC1, PVR-TC2, ETC1; Programmable support for all YUV formats
Resolution Support : Frame buffer max size = 2048 x 2048; Texture max size = 2048 x 2048
Anti-aliasing: 4x Multisampling; Programmable sample positions
The USSE is the engine at the centre of the POWERVR SGX architecture and supports a broad range of instructions. It supports Single programming model , SIMD execution unit, Static and Dynamic flow control, Procedural Geometry and External data access
•Display
Two layers
Scaler input size up to 1920*1080
Simultaneously output to TV and LCD support
Alpha blending, color key, dither and color space conversion，Gamma correction support
Support Flip and scale
•Highly-integration of peripherals
USB2_0 equipped for both OTG and HUB; USB2_1 only equipped for HOST/Slave
TWI*3, SPI*2, UART*6,I[sup]2[/sup]S interface equipped
24bit RGB interface LCD support
LVDS LCD interface LCD support
HDMI Tx(transmitter) equipped for HDMI compliant
4x3 Key matrix supported
•Memory
High-bandwidth DDR3/3L controller, up to 512MB
Nand flash controller with up to 60bit ECC, 4CEs，support toggle NAND 1.0；support SLC，MLC，TLC NAND
3 SD/SDIO controller supported
EMMC4.4.3 supported
•Power
3.3V I/O power and 1.0V core power required
Actions’ LPD Gen. II(Low Power Design Generation II) architecture integrated
Actions’ ADP(Adaptive Dynamic Power) architecture integrated
Multiple standby state supported
•Package
Type: LQFP176 epad compliant with RoHS requirement
Dimension: 20mm*20mm size
应用领域
多核平板电脑
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