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Controller IC supports 70Mbps PCI bandwidth

Posted: 29 Oct 2004 ?? ?Print Version ?Bookmark and Share

Keywords:fujitsu microelectronics america? controller ic? mb86296 coral pa? controller chip?

Fujitsu Microelectronics America Inc.'s newest graphics display controller IC called the MB86296 Coral PA, has been designed for advanced navigational and video display applications in automobiles.

The 32bit MB86296 controller chip is built with a geometry engine that performs precise numerical operations for graphics processing using floating-point operations. The device includes a 32bit, 33MHz PCI interface that enables data transfer at 70MBps, more than any other GDCs.

The controller incorporates external memory interfaces to enable off-chip connections to SDRAM or Fast Cycle RAM (FCRAM). The MB86296 Coral PA also has been designed to be fully compatible with all of the company's display controllers, including the MB86292 Orchid and the MB86290A Cremson controllers, which were introduced in 2002.

The MB86296 also has a video-capture function that stores digital video data from DVDs and other sources in graphics memory. The new graphics display controller is capable of displaying both video and rendered images on the same screen, delivering a highly detailed map or image to drivers or passengers. Video input is programmable for brightness, saturation and contrast.

The MB86296 provides support for six layers, and incorporates a multiple geometry engine and enhanced video input capabilities. The device supports conventional XGA (1,024 x 768 pixels) display, a 4-layer overlay, left/right picture display, wraparound scrolling, double buffers and translucent display. The 6-display layer supports four different color palettes, each with 256 colors. All layers offer 24- or 16bit resolution with direct color or 8bit resolution with indirect color.

The Coral PA controller operates similarly to the Windows OS. Graphic inputs can be doubled in size, and the windows display-layer management functions can deliver several images simultaneously. This video-input upscaling capability makes it possible to display high-resolution, full-screen-mode multimedia pictures. Both upscaling and downscaling can be set independently in horizontal and vertical directions in pixel or line resolutions.

The chip's 200MHz internal frequency reaches 400MHz for display dot clocks, enabling its rendering engine to achieve an order-of-magnitude improvement in texture mapping and drawing image quality over previous graphic display controller products.

The MB86296 Coral PA runs on 1.8V at 500mA, and 3.3V at 100mA. It is compatible with all of Fujitsu's graphics display controller ICs, and can be used with different host CPU buses including the FR series from Fujitsu, SH3 and SH4 from Hitachi, and V83 from NEC Electronics. Coral PA requires no external glue logic.

The graphics controller is manufactured using Fujitsu's 0.18?m process technology and is housed in 256-pin BGA packages. Samples are already available, with production pricing beginning at $22.85 each in 100,000-piece units.

- Marty Gold


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