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上传时间: 2012-03-19
详细说明： 1.1 Overview The OMAP4460 high-performance multimedia application device is based on enhanced OMAP™ architecture and uses 45-nm technology. • The architecture is designed to provide best-in-class video, image, and graphics processing for 2.5/3G wireless terminals, high-performance personal digital assistants (PDAs). For that purpose, the device supports the following functions: – Streaming video up to full high definition (HD) (1920 × 1080 p, 30 fps) – 2-dimensional (2D)/3-dimensional (3D) mobile gaming – Video conferencing – Hi gh-resolution still image (up to 16 Mp) • The device supports high-level operating systems (OSs) such as: – Linux® – Palm OS™ – Symbian OS™ – Windows™ CE, WinMobile™ • The device is composed of the following subsystems: – Cortex™-A9 microprocessor unit (MPU) subsystem, including two ARM® Cortex-A9 cores – Digital signal processor (DSP) subsystem – Image and video accelerator high-definition (IVA-HD) subsystem – Cortex™-M3 MPU subsystem, including two ARM Cortex-M3 microprocessors – Display subsystem – Audio back-end (ABE) subsystem – Imaging subsystem (ISS), consisting of image signal processor (ISP) and still image coprocessor (SIMCOP) block – 2D/3D graphic accelerator (SGX) subsystem – Emulation (EMU) subsystem • The device includes state-of-art power-management techniques required for high-performance mobile products. • Comprehensive power management is integrated into the device. • The device also integrates: – On-chip memory – External memory interfaces – Memory management – Level 3 (L3) and level 4 (L4) interconnects – System and connecting peripherals ...展开收缩
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