Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: SH7760
Edited by the Electronicstalk Editorial
Team on 14 November 2002
Controller takes more interfaces onboard
New from Hitachi, the SH7760 is a high-performance processor for use in in-vehicle information systems, next-generation telematics products, industrial equipment and consumer products.
New from Hitachi, the SH7760 is a high-performance processor for use in in-vehicle information systems, next-generation telematics products, industrial equipment such as point-of-sale terminals, and a variety of consumer products The new device integrates a SuperH SH-4 RISC CPU core together with a variety of peripheral functions and interfaces such as voice, sound, in-vehicle LAN (CAN) and memory card interfaces in a single chip
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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The SH-4 CPU core offers a high processing performance of 360MIPS and 1.4GFLOPS at a 200MHz operating frequency, as well a large cache memory capacity with 16Kbyte for instructions and 32Kbyte for data.
It uses two-way set-associative operation that speeds up program processing and enables high-performance end products to be developed.
The instruction set is compatible with current SH-4 products, enabling the use of existing programs and middleware, such as voice and sound processing.
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Next-generation telematics systems include a wide variety of functions such as display of simple route guidance and information received from outside the vehicle; capture and processing of vehicle information such as car speed and airbag activation via an in-vehicle LAN; and connection to and control of a wireless terminal for transmission outside the vehicle via the Internet.
In addition these systems are expected to provide safety features such as voice-operated hands-free functions, using technologies such as noise and echo cancellation, speech recognition and speech synthesis.
By enabling these functions the SH7760 can support vehicle tracking and fleet management services, as well as emergency call systems which detect the operation of a button or airbag and transmit the vehicle position to a service centre, reporting the breakdown or accident and requesting assistance.
In addition to providing the high-performance and high-functionality required by next-generation telematics systems the device enables the development of small systems that meet in-vehicle installation space constraints.
The SH7760 includes an audio codec interface and a serial sound interface for audio LSI connection, enabling hands-free function.
The device also incorporates an HCAN2 interface offering CAN industry standard in-vehicle LAN compatibility, a USB host interface for connecting a mobile phone or similar device, plus a variety of interfaces for voice, sound and control information, including a memory card interface for applications such as map data capture.
These features enable a single chip to handle a variety of telematics system or industrial equipment applications and can result in the reduction of the number of parts, size and cost of end products.
The new processor has an on-chip LCD controller supporting a liquid crystal display of up to 640 x 480 pixels when displaying 256 colours.
A display system can be configured simply by connecting an LCD module.
A number of modules, such as the I2C bus interface, incorporate a data transfer buffer which enables smooth execution of data processing.
The direct memory access controller provides a dedicated FIFO buffer for the LCD controller, USB interface, audio codec interface and serial sound interface.
This provides smooth data transfer and processing and prevents problems such as sound intermittence due to the interruption of data transfer.
The SH7760 comes in a small 256-pin BGA package.
Sample shipments will begin in January 2003.
A development platform with USB and other interfaces will be available to simplify the development of user software.
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