關(guān)鍵詞： ES雙核手機(jī) , OMAP4460 , Pandaboard , TI

TI公司的OMAP44x系列是移動應(yīng)用平臺,其中的OMAP4460雙核處理器主頻達(dá)到了1.2GHz,OMAP4460搭載了Cortex A9 MP架構(gòu)的雙核心，1MB二級緩存，采用45nm工藝。內(nèi)存方面支持雙通道LPDDR2 1066的內(nèi)存,而GPU采用PowerVR SGX540,頻率高達(dá)384MHz。而Pandaboard ES開發(fā)板采用TI的OMAP4460雙核處理器, 是當(dāng)前全球唯一的雙核ARM Cortex A9開發(fā)平臺.本文介紹了OMAP4460主要特性,方框圖以及OMAP4460 Pandaboard ES開發(fā)平臺主要特性,方框圖,詳細(xì)電路圖和材料清單.

Texas Instruments’ (TI) OMAP™4 mobile applications platform will redefine the mobile phone of tomorrow with new, innovative user experiences driven by PC-like web browsing, 1080p full HD video record and playback, intuitive user interfaces, location-based services and next-generation social networking applications. The OMAP 4 platform includes applications processors, a comprehensive software suite, power management technology and supporting components to bring nextgeneration Smartphones and Mobile Internet Devices (MIDs) to market quickly. The platform is future proof, offering the programmability and performance headroom to support new and emerging applications and standards. Not only will the OMAP 4 platform accelerate time to market and reduce research and development (R&D) time and costs for handset manufacturers, but its flexibility and openness will enable manufacturers to deliver innovative applications at breakthrough mobile computing performance.

TI tests the OMAP 4 platform for real-world use cases, accelerating time to market and enabling stunning user experiences.

At the heart of the OMAP 4 platform is a powerful system-on-chip that includes the perfect balance of power efficiency and high performance.

The OMAP 4 processor balances processing across four main engines: a programmable multimedia engine based on TI’s C64x DSP andpower-efficient, multi-format hardware accelerators; general-purpose processing based on the dual-core ARM?Cortex™-A9 MPCore™ supporting symmetric multiprocessing (SMP) and capable of speeds of more than 1 GHz per core; a high-performance programmable graphics engine; and an Image Signal Processor (ISP) for unparalleled video and imaging performance.

The OMAP 4 family includes two applications processors, both based on the dual-core Cortex-A9 MPCore general purpose processors: the OMAP4430 operates at up to 1 GHz, while the OMAP4460 operates at up to 1+ GHz. Both processors offer the full variety of subsystems and applications discussed below to deliver hardware and software system solutions that scale across customer roadmaps optimizing time to market, flexibility and R&D efficiency.

OMAP4460主要特性:

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 sufficient to various applications.

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

 High-resolution still image (up to 16 Mp)

The device supports high-level operating systems (OSs) such as:

 Windows™ CE, WinMobile™

 Symbian OS™

 Linux®

 Palm OS™

The device is composed of the following subsystems:

 Cortex™-A9 microprocessor unit (MPU) subsystem, including two ARM® Cortex-A9 cores capable of operation at 1.2GHz

 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

2012-1-31 12:38:23 上傳