Renesas chip brings HD video, advanced graphics to high-end automotive displays

October 05, 2011 // By Christoph Hammerschmidt
Along with its subsidiary Renesas Mobile Corporation, semiconductor vendor Renesas Electronics has developed an automotive system-on-chip (SoC) for high-end automotive display systems (graphics cluster, multifunction graphics display) supporting advanced human machine interfaces (HMI).

The SH7769 SoC enhances functions such as video input, display output and high-reliability systems present in Renesas' existing SH-Navi3 (SH7776) SoC, which has been widely adopted for high-end automotive infotainment systems. The SH7769 SoC implements functions essential for automotive display systems such as 3D graphics meters and central displays, markets that are expected to grow rapidly.

Due to the increase in demand to process enormous volumes of information through in-car network and multimedia systems, car information systems are required to deliver this information to the driver clearly and safely. The SH7769 SoC implements a high-function 3D graphics engine and display units, which allow 1600 x 480-pixel high definition (HD) video decoding. A graphical user interface (GUI) display can be used to deliver a realistic instrument-cluster system and in-vehicle information to the driver. This GUI allows realistic 3D graphics display and improved operability.

Up to three video data streams can be processed simultaneously to provide a driver with information from external vehicle cameras, navigation systems, and night vision devices at the same time. The SH7769 SoC also contributes to the reduction of system costs by reducing the number of external components as it integrates functions like an NTSC decoder and an image render (IMR) function, which perform the compensation of fish-eye images.

Key features of the SH7769 SoC are the implementation of high-performance 3D graphics engine, supporting realistic 3D images; advanced image compensation and transformation circuitry; and ultra-high-speed data transfer with DDR3-1067-supported memory interface.

The SH7769 SoC incorporates Imagination Technologies' advanced 3D graphics IP core, the POWERVR SGX530, in the 3D graphics engine. The new SoC also supports an intelligent graphics processor unit (GPU) that supports OpenGLES2.0 for the rendering of realistic 3D objects and high-quality GUIs, which makes it suitable for multimedia applications such as HMIs.

CPU core: The SH7769 SoC implements Renesas' 32-bit RISC (Reduced Instruction Set Computer) CPU core, the SH-4A, and operate at up to 533 MHz.