Freescale公司的 i.MX27多媒体应用处理器是基于ARM926EJ-S微处理器核，工作速率高达400MHz，具有先进的特性和低功耗性能，片内缓存系统，以及丰富的外设包括MPEG-4, H.263, H.264视频CODEC (高达D1―720 x 486―@ 30 FPS), LCD, eMMA_lt以及CMOS传感器接口控制器，广泛应用在富有特性的手机，手提媒体播放器和移动游戏机，PDA和无线PDA，手提DVD播放器以及数码相机等。本文介绍了i.MX27多媒体应用处理器的主要特性，方框图和IP照相机方框图，以及IP照相机的主要特性，所用的Aptina MT9D131 图像传感器的主要性能与照相机软件架构方框图。

The MCIMX27/MCIMX27L (i.MX27 and i.MX27L) Multimedia Applications Processors represent the next step in low-power, high-performance applications processors. Unless otherwise specified, the material in this datasheet is applicable to both the i.MX27 and i.MX27L processors and is referred to singularly throughout this documentasi.MX27.

The i.MX27L does not include the following features:

ATA-6 HDD Interface, Memory Stick Pro, VPU, MPEG-4/ H.263/H.264 HW encoder/decoder, and eMMA (PrP processing, CSC, deblock, dering).

Based on an ARM926EJ-S" microprocessor core, the i.MX27/i.MX27L processor provides the performance with low-power consumption required by modern digital devices such as the following:

Feature-rich cellular phones

Portable media players and mobile gaming machines

Personal digital assistants (PDAs) and wireless PDAs

Portable DVD players

Digital cameras

The i.MX27/MX27L processor features the advanced and power-efficient ARM926EJ-S core operating at speeds up to 400 MHz, and is optimized for minimal power consumption using the most advanced techniques for power saving (for example, DPTC, power gating, and clock gating). With 90 nm technology and dual Vt, the i.MX27/MX27L device provides the optimal performance vs. leakage current balance.

The performance of the i.MX27/MX27L processors are both boosted by an on-chip cache system, and features peripheral devices, such as an MPEG-4, H.263, an H.264 video codec (up to D1―720 x 486― 30 FPS), LCD, eMMA_lt, and CMOS Sensor Interface controllers.

The i.MX27/MX27L processors supports connections to various types of external memories, such as 266-MHz DDR, NANDFlash, NOR Flash, SDRAM, and SRAM. The i.MX27/MX27L devices can be connected to a variety of external devices using technology, such as high-speed USBOTG 2.0, the Advanced Technology Attachment (ATA), Multimedia/Secure Data (MMC/SDIO), and CompactFlash.

i.MX27 主要特性：

The MX27/MX27L processors are targeted for video and voice over-IP (V2IP) and smart remote controllers. It also provides low-power solutions for any high-performance and demanding multimedia and graphics applications.

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