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Dual-core processor achieves 1,920MIPS

Posted: 29 Aug 2008     Print Version  Bookmark and Share

Keywords:dual-core processor  65nm process  CPU cores  DDR3-SDRAM 

Renesas Technology Corp. has rolled out a new SH7786 dual-core processor fabricated with a 65nm process for high-performance multimedia equipment such as car navigation systems. It realises excellent processing performance of up to 1,920MIPS (960MIPSx 2, when operating at 533MHz) and ultra high-speed data transfer.

Renesas already developed the 90nm SH7786 dual-core processor fabricated with a 90nm process achieving the same processing performance with that of a 65nm process product. However, 65nm process version realises lower power consumption by finer process and ultra high-speed data transfer by incorporating DDR3-SDRAM memory interface.

Main features of SH7786:

(1) Dual high-performance SH-4A CPU cores for superior processing power of 1,920 MIPS

The new SH7786 incorporates dual SH-4A high-performance 32bit RISC CPU cores, each with a processing performance of 960MIPS at 533MHz, and achieves a maximum processing performance of 1,920MIPS. It can handle the high-speed processing of complex data necessary to meet the requirements of next-generation car navigation systems with functions such as graphical display capabilities, high-quality audio reproduction, and image recognition.

In addition, the 65nm process enables lower power consumption and lower heat generation. There are also three low-power modes that can be specified independently for the two CPU cores, further reducing power consumption.

(2) On-chip DDR3-SDRAM memory interface and PCIe bus interfaces for ultra high-speed data transfers

The new SH7786 integrates a dedicated 32bit bus operating at 533MHz for connecting to high-speed DDR3-SDRAM, enabling ultra high-speed data transfer at up to 4.27Gbps. In addition, multiple PCI Express bus interfaces supporting large-volume data transfer provide high-speed data throughput at up to 800Mbps.

This makes it possible to implement sophisticated drawing such as smooth of complex and real 3D graphics

Earlier 90nm SH7786 products were compatible with DDR2-SDRAM with an operating voltage of 1.8 V. The new 65 nm versions support DDR3-SDRAM with an operating voltage of 1.5V, allowing a further reduction in the power consumption of the system overall.

(3) Development environment for design support of multi-core systems

A version of the E10A-USB on-chip debugging emulator with multi-core support is available as a development environment for the SH7786. It provides a range of flexible simultaneous debugging functions including simultaneous execution, simultaneous break, and single-CPU break and re-execute.

The new SH7786 is fully supported by QNX Neutrino RTOS and the QNX Momentics development suite. Sample shipments will begin in October 2008 in Japan. The device will be made available to Renesas' wide base of consumer and industrial customers in 2009.





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