CPUs: Renesas SoC targets In-Vehicle Image-Recognition applications - Embedded.com

CPUs: Renesas SoC targets In-Vehicle Image-Recognition applications


San Jose, Ca. – Renesas Technology America, Inc. today introduced the SH77650, a single-chip SoC product optimized for image-recognition processing applications in next generation vehicle information systems.

The new device is targeted for use in applications such as affordable vehicle information terminals, particularly the next-generation car navigation systems and peripheral devices that can help increase driving safety.

In addition to automotive applications, the SH77650 is also suitable, the company said, for security equipment for business and industrial applications.

The 300MHz SH77650 provides the same image-recognition processing functions as Renesas' existing 600MHz SH7774 high-performance SoC product for car navigation systems.

Built around intellectual property (IP) from Hitachi, Ltd., the new SoC incorporates an image-recognition processing accelerator to perform the computations necessary to identify road conditions via image data captured by a camera or similar device.

It can run multiple external image recognition programs such as roadway lane recognition or the detection and tracking of the cars and trucks ahead simultaneously and in real time.

This capability makes it possible to realize sophisticated safety functions in a moving vehicle, such as adaptive cruise control. To facilitate the development of such applications, Renesas is offering an image-recognition library containing approximately 200 functions.

When operating at 300MHz, the SH-4A CPU core in the SH77650 achieves impressive processing performance: 540 MIPS (million instructions per second). Moreover, the SoC device's on-chip floating-point processing unit (FPU), which supports both single- and double-precision calculations, delivers 2.1 GFLOPS (giga floating-point operations per second) in single-precision mode at that speed.

The SH77650 also incorporates a variety of other on-chip peripherals required for automotive image-recognition applications. They include not only the requisite video input interface and display functions, but also a dedicated DMA controller, timers, a serial communication interface, and a CAN interface for in-vehicle LANs.

An on-chip bus arbitrator supports three access priority levels so internal functions can access external memory efficiently. There is also a 32-bit dedicated external bus that can connect to high-speed DDR1-SDRAM (Double Data Rate 1 – Synchronous DRAM), and a 32-bit expansion bus that enables connections to external flash memory or SRAM.

Development tools for the SH77650 SoC device include the previously mentioned image-recognition library, an emulator, and a reference platform. The E10A-USB emulator connects to a host PC via a USB bus, providing a real-time on-chip debugging capability at the SH77650's 300MHz maximum operating frequency.

The reference platform includes in-vehicle information-system oriented peripheral circuits and can be used as both a basic user system and a product verification environment.

For more information, go to www.renesas.com.

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