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Product category: Control systems, panels, HMIs, interfaces, screens
News Release from: Renesas Technology Europe | Subject: SH7670 group microprocssors
Edited by the Manufacturingtalk Editorial Team on 06 December 2007

Microcontroller has 480MIPS, FPU, ether
and USB

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Microprocessors have an Ethernet controller and USB 2.0 host on a single chip and are intended for applications such as factory automation systems requiring network connection functionality.

Renesas Technology Europe has introduced a total of eight products in four groups in the SH7670 group of its SuperH family These microprocessors each incorporate an Ethernet controller and USB 2.0 host on a single chip and are intended for applications such as factory automation systems, digital audio visual and office automation, which require network connection functionality

The SH7670 has a maximum operating frequency of 200MHz and yields 480DMIPS at that speed.

It also has a single/double-precision Floating Point Unit (FPU), which is now wanted by many engineers who develop their algorithms on PCs using high-level-abstraction tools such as Matlab.

Without an FPU these algorithms will slow down dramatically when the application is moved from the PC to embedded hardware (microcontrollers).

The SH7670 offers the following features.

* Ethernet controller and USB functionality on a single chip for reduced system cost.

* The SH7670 implements an IEEE802.3 compliant Media Access Controller (MAC) that makes it easy to develop systems supporting 10Mbps/100Mb/s (megabits per second) Ethernet LAN connections.

* It also incorporates USB 2.0 high-speed (480 Mb/s) host and function module capabilities, simplifying development of USB functionality.

* Numerous on-chip peripheral functions including host interface and audio (voice) codec connection interface.

* The host interface (HIF) enables easy connections between the SH7670 and another processor.

This function enables the SH7670 to be recognised and controlled as an SRAM-equivalent device by a main microprocessor performing system control.

* The SH7670 as a 16-bit bus device allows high-speed command transmission and rapid transfer of large amounts of data.

This facilitates its integration into existing systems.

* Use of the HIF boot function eliminates the need for external nonvolatile memory such as flash memory, reducing the number of parts required.

In addition to the above, an audio (voice) codec can be connected via the serial sound interface.

This makes it easy to implement a VoIP system.

The comprehensive other on-chip peripheral functions include an SD host interface and I2C bus interface.

These also help reduce the number of parts in the system, further reducing costs.

Increasingly, the communication standard used to link equipment in industrial settings is Ethernet.

At the same time, USB is being used increasingly for connections with host PCs.

The SH7670 also includes a general-purpose DMA controller, enabling high-speed data transfers between separate banks of external memory.

This contributes to higher overall network data throughput.

The package is a compact 256-pin BGA (17mm x 17mm) that helps minimise product size.

A JTAG on-chip debugging function is included that enables real-time debugging at the maximum operating frequency.

A compact PC card size emulator, the E10A-USB, is available.

Samples and an M3A-evaluation board are available now.

A Renesas Starter Kit (RSK) is under development and planned to be available by end 1Q08.

RSKs are low-cost, complete with E10A debugger and software (including uclinux BSP) and are highly user-friendly.

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