MCIMX25中文资料i.MX25 Applications Processor for Automotive Products数据手册恩XP规格书

描述 Description

The i. MX25 family of processors are designed to meet the connectivity requirements of today' sautomobile infotainment systems. To meet these requirements, the i. MX25 processors provide high-end features, such as CAN, USB connectivity, and audio connectivity at a price point that is suitable for all vehicles.

At the core of the i. MX25 is Freescale's fast, proven, power-efficient implementation of the ARM? 926EJ-STM core, with speeds of up to400MHz. The i. MX25 includes support for up to 133 MHz DDR2 memory, integrated 10/100 Ethernet MAC, and two on-chip USB PHYs. The automotive versions of the i. MX25 offer AEC-Q100 grade 3 qualification to meet stringent automotive quality requirements. The device is suitable for a wide range of applications, including the following:
• USB Connectivity for media storage/playback, personal media device interface, and firmware updates
• Bluetooth™ connectivity for hands free phone calling and streaming audio from wireless devices like phones or PND
• Control of the infotainment system through basic speech recognition or touch screen
• Smart toll and metering applications
• Secure data black box applications

特性 Features

• Advanced power management—The heart of the device is a level of power management throughout the IC that enables the multimedia features and peripherals to achieve minimum system power consumption in active and various low-power modes. Power management techniques allow the designer to deliver a feature-rich product that requires levels of power far lower than typical industry expectations.
• Multimedia powerhouse—The multimedia performance of the i.MX25 processor is boosted by a 16 KB L1 instruction and data cache system and further enhanced by an LCD controller (with alpha blending), a CMOS image sensor interface, an A/D controller (integrated touchscreen controller), and a programmable Smart DMA (SDMA) controller.
• 128 Kbytes on-chip SRAM—The additional 128 Kbyte on-chip SRAM makes the device ideal for eliminating external RAM in applications with small footprint RTOS. The on-chip SRAM allows the designer to enable an ultra low power LCD refresh.
• Interface flexibility—The device interface supports connection to all common types of external memories: MobileDDR, DDR, DDR2, NOR Flash, PSRAM, SDRAM and SRAM, NAND Flash, and managed NAND.
• Increased security—Because the need for advanced security for tethered and untethered devices continues to increase, the i.MX25 processor delivers hardware-enabled security features that enable secure e-commerce, Digital Rights Management (DRM), information encryption, robust tamper detection, secure boot, and secure software downloads.
• On-chip PHY—The device includes an HS USB OTG PHY and FS USB HOST PHY.
• Fast Ethernet—For rapid external communication, a Fast Ethernet Controller (FEC) is included.
• i.MX25 only supports Little Endian mode.