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Application processor rolls for One-Seg-enabled mobiles

Posted: 15 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:DTV broadcast? application processor? car navigation?


Renesas Technology Corp. has introduced the second offering in the SH-Mobile series of application processors designed for use in portable and mobile devices with support for One-Seg terrestrial DTV broadcasts, such as car navigation systems and personal navigation devices.

The SH-MobileR2 incorporates the SH-4A CPU core and achieves processing performance of 720MIPS at the maximum operating frequency of 400MHz, for a unit-frequency performance of 1.8MIPS/MHz. In addition, the 64Kbytes primary cache memory is supplemented by a new 256Kbytes secondary cache memory, enabling faster execution of software.

Also provided is the VPU5F IP core for high-performance video processing. VPU5F supports the H.264 video compression standard used for terrestrial digital broadcasts; encoding and decoding of MPEG-4, which is widely used for video recording and playback; and decoding of VC-1. This enables video processing with excellent picture quality, high speed, and superior performance.

The SH-MobileR2 also has a wide range of on-chip peripheral functions such as multimedia functions. It employs a 2D graphics accelerator for map rendering that delivers improved functionality and performance. The thick-line rendering function makes it easy to draw lines of a uniform thickness, regardless of the direction, when representing roads. The anti-aliasing function enables smooth rendering of polygons and diagonal lines. These functions contribute to high-quality, high-speed map rendering.

In addition, an expanded edge emphasis function delivers high-quality display of terrestrial DTV broadcasts. It ensures that the picture does not appear fuzzy when enlarged from QVGA to VGA or WVGA size by enhancing the edges, performing inter-pixel correction, and filtering out noise. Other on-chip functions include a 24bit compatible TFT color LCD controller, USB 2.0 host/function (high-speed), an ATAPI controller allowing connection to a high disk or DVD drive, and an SD host controller with high-speed specification support. The SD memory card interface supports an optional content protection for recordable media specification function, making possible recording and later playback of terrestrial digital broadcasts.

Reference tools
A range of system solutions is also planned to help shorten system development times and reduce system cost. These include a reference platform with the SH-MobileR2 mounted on it and a graphics library supporting the functions of the 2D graphics accelerator. The reference platform will be a useful tool for examining system functions, evaluating performance, and more efficient software development. The graphics library conforms to the GDI-Sub specification and supports Windows Automotive 5.0 Service Pack 2 from Microsoft Corp., making it possible to implement a variety of map rendering functions using the 2D graphics accelerator.

Scheduled third-party products that will support the SH-MobileR2 include middleware and a system development solution for One-Seg compatible applications from Hitachi ULSI Systems Co. Ltd, and, a board support package from Akita Electronics Systems Co. Ltd, with support for Windows CE 5.0 and Windows Automotive 5.0 Service Pack 2.

The SH-MobileR2 is packed in a 449-pin BGA. Sample shipments will begin in January 2008 in Japan.

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