freescale 公司的mpc5121e 是32位嵌入式多核处理器，具有极好的计算功能，主要用于汽车电子和消费类电子，包括需要网络连接，图像和图像用户接口的嵌入式解决方案。
　　基于power architecture™的e300核，mpc5121e能为未来的开发提供高质量，高可靠的高性能。本文介绍了mpc5121e的主要性能，方框图以及主要应用范围。此外，还介绍了mpc5121e开发系统odm参考板的主要性能和特性。

　　mpc5121e multi-core processor for automotive and consumer applications
　　the mpc5121e 32-bit embedded processor provides an exceptionalcomputing platform for oem, aftermarket, commercial telematics, and consumer applications, including embedded solutions requiring network connectivity, graphics and a graphical user interface. based on the e300 core built on power architecture™ technology, the mpc5121e embedded processor will deliver quality, reliability and high performance for years to come.

　　overview
　　the latest in integrated processors, freescale’s mpc5121e provides a computing
　　platform for oem, aftermarket, commercial telematics, and consumer applications.
　　the mpc5121e uses an e300 core built on power architecture™ technology and is ideal
　　for any embedded solution that requires sophisticated displays, graphics acceleration,
　　rich user-interfaces and network connectivity.
　　the mpc5121e multi-core processor offers competitive cost, quality, reliability and
　　exceptional performance.

　　主要应用：
　　telematics
　　rear-seat entertainment systems
　　back-up camera implementations
　　vehicle connectivity
　　gaming and pachinko machines
　　set-top boxes
　　surveillance and security systems
　　ultra-mobile pcs
　　industrial control
　　heavy equipment
　　high resolution display applications

　　主要特性：
　　itu 656 interface
　　e300 core built on power architecture technology
　　up to 400 mhz and 760 mips performance
　　axe, a fully programmable, 200 mhz 32-bit risc core for real-time acceleration tasks,
　　such as audio
　　powervr® mbx lite 2d/3d graphics engine
　　diu integrated display controller supports up to xga resolution
　　12 programmable serial controllers (psc) specifications
　　32 kb instruction cache/32 kb data cache
　　sdram ddr1/ddr2/mobileddr controller
　　instruction and data memory management unit (mmu)
　　double precision floating point unit (fpu)
　　10/100 fast ethernet media access controller (mac)
　　three i2cs
　　pci 2.3 interface
　　two usb 2.0 high speed on-the-go
　　(otg), one with physical layer (phy)
　　12 programmable serial controllers (psc) each capable of uart, i2s, codec/pcm,
　　ac97, spi, multi-channel data and other operations
　　serial advanced technology attachment/ parallel advanced technology attachment
(sata/pata)
　　four controller area network (can) modules
　　64-channel intelligent dma i/o controller
　　sony/philips digital interface format (s/pdif) serial audio interface
　　secure digital high-capacity (sdhc) mmc/sd/sdio card host controller

design challenges/development support
the integration features of the mpc5121e are optimal for automotive center stack systems where an lcd display is desired for driver interface-to-vehicle systems. these same features are also well-suited for advanced security systems, particularly where an lcd display is desired for user interface and live monitoring.
mobilegt™ products
the mpc5121e is the latest addition to the mobilegt family of processors. with the consistent application of the e300 cpu core, software support and compatibility already exists, providing for a rich ecosystem of development tools and support. freescale plans to enable significant levels of firmware and software driver support. this will include popular real-time operating systems from green hills, qnx and wind river, as wel