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| 出处：嵌入式技术网 时间： 2007-11-15 |
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飞思卡尔(Freescale)的i.MX31多媒体应用处理器采用ARM 1136JF-S内核,运行速度可高达532MHz. 多媒体加速器eMMA可以完成独立的预前和预后处理模块，支持MPEG-4，H.263的编解码。CPU 266MHZ，系统133MHZ，1.8V，16/18彩色LCD控制器，支持VGA。飞思卡尔的PMP解决方案是基于i.MX31多媒体应用处理器和Microsoft Windows CE 5.0操作系统.下面将介绍Freescale i.MX31 SOM-LV 开发板的性能和i.MX31多媒体应用处理器的主要性能.
Freescale i.MX31 SOM-LV 开发板
Freescale i.MX31 SOM-LV 产品性能:
LCD Display Connector
Integrated LCD, touch, and backlight connector for Zoom Display Kits Audio
Stereo input and output jacks Network Support
One RJ45 Ethernet jack connector with magnetics (application/debug) PC Card Expansion
CompactFlash Type I card
MMC/SD card ATA Support USB
One USB 2.0 high-speed host interface
One USB high-speed On-the-Go device interface Serial Ports
115.2kbps RS-232 debug serial port Software
LogicLoader (bootloader/monitor)
Windows CE 5.0 BSP
GNU cross development toolchain (compiler, linker, assembler, debugger) Cables
Serial cable (null-modem)
Ethernet crossover cable
USB A to mini-B cable
5 volt power supply (with Europe, Japan, UK, & US adapters) Mechanical
146.1 mm wide x 158.8 mm long x 17.1 mm high RoHS Compliant
Freescale i.MX31 SOM-LV方框图:
i.MX31 微控制器的主要性能:
The i.MX31-10 SOM-LV uses Freescale‘s highly integrated i.MX31 processor. This device
features the ARM1136JF-S core and provides many integrated on-chip peripherals, including:
Integrated ARM1136JF-S Core
32-bit ARM 11 core
Vectored floating point unit
32x16 MAC
16 Kbytes instruction cache
16 Kbytes data L1 cache
128 Kbyte L2 cache
16 Kbyte SRAM
32 Kbyte ROM
Integrated LCD Controller
Up to 800 x 600 x 18-bit color
Five UARTs
I2S codec interface
One high-speed USB 2.0 On-the-Go (OTG) controller and two USB 2.0 host interfaces
Many general purpose I/O (GPIO) signals
32 independent DMA channels
Programmable timers
RTC
Low power modes
i.MX31 微控制器的方框图:
i.MX31多媒体应用处理器的特性:
> The high performing ARM1136JF-S processor with speeds starting at 532 MHz
> Vector floating point co-processor and advanced cache system design optimize the performance of computationally-intensive multimedia applications
> Built-in Image Processing Unit (IPU) accelerates image processing and provides display management for superb picture quality
> High-end video resolution and quality
> Advanced dynamic power management techniques to extend battery life
> Excellent system performance through the outstanding memory subsystem design
> Extensive customization of your design through the broad I/O capabilities built into the kit
> Freescale’s platform independent security architecture to provide a high level of confidence for carriers, content providers and consumers
> Open operating systems support, such as Microsoft Windows CE .NET®
Bring consumers the cinema quality video they demand. Start your media player or other device design using Freescale’s i.MX31 Portable Media Player evaluation kit. The work we’ve done for you can help get your mobile media device with the Microsoft Windows CE 5.0 OS to market sooner.
Example implementation includes:
> Freescale i.MX31 multimedia applications processor
> 40 GB 1.8 HDD support
> 32 MB NOR Flash, 128 MB DDR SDRAM
> 3.5 320 x 240 16-bit color LCD
> Keypad with Push-button U/I
> Stereo headphone output
> High-speed USB 2.0, Ethernet and UART support
> Windows CE®/PMC
> Power management provided by Freescale MC13783 PMIC
> TV out
> Compact Flash
> SD/SDIO
The complete reference design kit contains:
> Schematic (OrCAD or PDF)
> Bill of materials
> Layout files
> i.MX31 Windows CE 5.0/PMC board support package
> Performance data
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