The 300MHz SH77650 provides the same image-recognition processing functions as Renesas' existing 600MHz SH7774 high-performance SoC product for car navigation systems. The new chip is designed to deliver an excellent combination of cost, functionality and performance in driving-assist systems that perform functions such as white-line detection (lane-division recognition).
The device's intellectual property (IP) from Hitachi, Ltd. encompasses an image-recognition processing accelerator — specialized hardware that performs the computations necessary to identify road conditions via image data captured by a camera or similar device. The hardware accelerator 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 offers an image-recognition library containing approximately 200 functions. The new product also allows the reuse of existing engineering resources to save cost, including application software that customers had originally developed for the previous-generation product.
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. These high levels of performance enable the design of powerful image-recognition processing systems.
Besides the image-recognition processing accelerator, the SH77650 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. These on-chip peripheral functions and features allow this one chip to handle all of the main capabilities of an image recognition system. Thus, system engineers can produce designs that have fewer parts and cost less.
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. The platform is available now.
Price and availability
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Product Name |
Operating
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Package |
Sample Price /
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| SH77650 (R8A77650DA01BGV) | 300MHz | 376-pin BGA | $51/ NOW |
About Renesas Technology Corp.
Renesas Technology Corp. is one of the world's leading semiconductor system solutions providers for mobile, automotive and PC/AV (Audio Visual) markets and the world's No.1 supplier of microcontrollers. It is also a leading provider of LCD Driver ICs, Smart Card microcontrollers, RF-ICs, High Power Amplifiers, Mixed Signal ICs, System-on-Chip (SoC), System-in-Package (SiP) and more. Established in 2003 as a joint venture between Hitachi, Ltd. (TOKYO:6501)(NYSE:HIT) and Mitsubishi Electric Corporation (TOKYO:6503), Renesas Technology achieved consolidated revenue of 953billion JPY in FY2006 (end of March 2007). Renesas Technology is based in Tokyo, Japan and has a global network of manufacturing, design and sales operations in around 20 countries with about 26,500 employees worldwide. For further information, please visit http://www.renesas.com
Notes:
- SuperH™ is a trademark of Renesas Technology Corp.
- CAN (Controller Area Network) is a network specification for use in vehicles, proposed by Robert Bosch GmbH of Germany.
- Other product names, company names, or brands mentioned are the property of their respective owners.
Specifications: Renesas Technology SH77650 Image-recognition SoC Device
| Item | SH77650 | |
| Product name | R8A77650DA01BGV | |
| Power supply voltage | 1.2V (internal)/3.3V, 2.5V (external) | |
| Maximum operating frequency | 300MHz | |
| Maximum processing performance | 540 MIPS, 2.1 GFLOPS (at 300MHz operation) | |
| CPU core | SH-4A (32-bit RISC type, superscalar) | |
| On-chip RAM | 256 Kbytes (on-chip bus connection) + 16 Kbytes (CPU-core internal connection) | |
| Cache memory | 4-way set associative type, with separate 32 Kbytes for instructions and 32 Kbytes for data | |
| External memory |
Supports direct connection to DDR1-SDRAM (DDR200) via DDR1 dedicated bus.
Expansion bus enables direct connection to SRAM or ROM. |
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| Expansion bus | Address space: 64 Mbytes x 3 | |
| Main peripheral functions | Video input interface x 3 channels | |
| Display function (Display Unit) | ||
| Image-recognition processing accelerator | ||
| Watchdog timer (WDT) x 1 channel | ||
| Boot function | ||
| Sound interface (SSI) x 4 channels | ||
| Dedicated DMA controller (DMAC) x 6 channels | ||
| Controller area network (RCAN) interface x 2 channels | ||
|
A/D converter x 1 channel (4 inputs) |
||
| Serial communication interface (SCIF) x 2 channels | ||
| Timer x 3 channels | ||
| I2C bus x 2 channels | ||
| Interrupt controller (INTC) | ||
| Power-down modes | Sleep mode | |
| Module standby mode | ||
| DDR-SDRAM power-supply backup mode | ||
| Package | 376-pin BGA (19mm x 19mm) |
Contact:
Renesas Technology America, Inc.
Akiko Ishiyama, 408-382-7407
Email Contact