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AM8268异显投屏器SoC

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更新时间:2024-12-11 11:54:07浏览次数:7次

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产品简介

简介AM8268N是Actions炬力推出的一款高度集成的混合信号SoC多媒体应用处理器芯片

详细介绍

简介


AM8268N是Actions炬力推出的一款高度集成的混合信号SoC多媒体应用处理器芯片。AM8268N内置的CPU是一个高性能、低功耗的32位RISC内核,具有DSP指令扩展,运行速度可达800MHz。
AM8268N处理器采用硬联线多格式视频,支持各种主流视频格式,包括:H.264、RMVB、MPEG1/2/4和VC1。AM8268N集成图像/视频处理器和显示引擎,可提供强大的图像处理能力,如无缝放大/缩小、裁剪、旋转、颜色空间转换、伽玛校正、边缘增强、抖动、亮度、对比度和饱和度调整。此外,为其他扩展保留了一个可配置的FIR。两层OSD窗口可以配置为全屏大小,颜色深度从1位到32位真彩色。

AM8268N多媒体处理器支持HDMI输出,可提供优质的显示解决方案,它集成了一个512Mb DDR2  SDRAM控制器、1个USB OTG控制器、UART、I2C、SPI等接口,是一颗性价比的图像处理Soc单芯片。

AM8268D.jpg


特性

■ 32BIT RISC CORE

- 32K byte instruction cache and data cache
- F/W can program from DC up to 800MHz transparently
- DSP instruction for multi-media acceleration
- Static design allows changing clock at run-time for power saving

■视频

- Multi-format supported including:
- 30 frames per second at 1920x1080 resolution for all format
- Adaptive De-interlacing

■ JPEG

- Support JPEG baseline 
- Support YCbCr 4:2:0 planar and semiplanar
- Support YCbYCr & CbYCrY 4:2:2 interleaved
- Support image size: from 80x16 to 4672x3504
- Support rotate: +90° , -90°

■ 图像/视频处理器

- Image up/down scaling at arbitrary non-integer scaling ratio
- Separate scaling ratio for horizontal and vertical dimensions
- Image cropping
- Image crossing
- Image rotation, 90 180 and 270 degrees and horizontal/vertical flip
- Image mask, output image writing can be prevented on two rectangular areas
- Support YUV444/YUV422/RGB888/RGB565 for mask window for alpha blending(256 level)
- YUV/RGB conversion
- Maximum output image size up to 1920x1080

■ 显示引擎

- YCbCr/RGB conversion, user definable conversion coefficients
- Image up scaling at arbitrary non-integer scaling ratio
- Separate scaling ratio for horizontal and vertical dimensions
- brightness, contrast and saturation adjust
- Edge enhancement
- Dynamic contrast adjust
- Direct mapped Gamma correction for RGB channel separately
- 24bit to 16/18 bit Bayer pattern/1D/2D method dithering
- Support progressive and interlace input format
- Support YUV4:2:2(interleave), YUV4:2:0(semi planar), RGB565, RGB888 input forma
- 16x16 hardware cursor

■ OSD

- Two layers of OSD window with overlap
- 8 level alpha blending for each window
- 1,2,4 or 8 bits OSD bitmap data width
- Transparency pixels allowed in OSD window
- Two configurable OSD palettes
- Each one of the 2 OSD windows can fetch RGB565/ARGB8888 data from system memory directly

■ 显示接口

- HDMI Tx support, industry standard compliance HDMI 1.2
- Support output size up to 1920x1080
- Configurable horizontal sync interrupt

■ 音频

- Multi-format audio decoder:MP1/MP2/MP3/WMA/AAC/AMR-NB/WAV/PCM/ADPCM
- Build in Stereo 18-bit Sigma-Delta DAC: SNR>92db(no a-weight), 18bits,sample rate 8/12/11.05/16/22/24/32/44.1/48
- Support 32 levels volume control

■ 内存控制器

- Integrated with a 512Mb DDR2 die which is up to 1066Mbps
- OTP ROM 64bit Chip ID

■ DMA控制器

- 8 physical channels and 4 bus channels
- Stride mode support
- Software configurable priority

■ Boot ROM

- On chip boot ROM with boot loader
- The system could be loaded from SPI Nor flash

■ USB 2.0 OTG 

- Complies with Universal Serial Bus Specification. Revision 2.0.
- Complies with On-The-Go Supplement to the USB2.0 Specification Revision 1.0a.
- Supports point-to-point communication with one low-speed, full-speed or high-speed device in Host mode.
- Supports full-speed or high-speed in peripheral mode.
- Supports USB Mass Storage Class Bulk-Only Transport Revision 1.0 as host or device.
- Supports Electronic still picture imaging Picture Transfer Protocol (PTP)
- Supports direct print function using pict-bridge
- Supports Universal Serial Bus Device Class Definition for Printing Devices Version 1.1 as host
- Supports Universal Serial Bus Still Image Capture Device Definition Revision 1.0 as host
- Configurable/programmable size of endpoints.
- Configurable/programmable single, double, triple or quad buffering.
- Programmable type of endpoints.
- Supports high-speed high-bandwidth Isochronous and Interrupt transfer.
- Supports suspend, resume and power managements function.
- Support USB wakeup

■ 系统兼容

- Mac操作系统
- Windows7、Windows10、Windows11系统

■ 其他接口

- UART/I2C/SPI
- 3 external interrupts
- 41 configurable GPIO shared with function pins

■ 功耗

- 1.3v for core
- 3.3v/1.8v for IO
- Build in 1.5v bandgap reference
- Core PLL, LCD PLL,Audio PLL and DDR PLL support spread spectrum

■ 封装

- QFN 68(epad)

应用

USB转HDMI投屏器、采集卡、MST多屏异显拓展坞、USB转HDMI dongel


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