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Product category: Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: SH7058F
Edited by the Electronicstalk Editorial Team on 26 September 2002

More speed and Flash for automotive MCU

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Hitachi's latest SuperH 32bit single-chip RISC microcontroller features the automotive industry's fastest operating frequency of 80MHz and the largest on-chip Flash memory of 1Mbyte.

Hitachi's latest SuperH 32bit single-chip RISC microcontroller features the automotive industry's fastest operating frequency of 80MHz and the largest on-chip Flash memory of 1Mbyte The SH7058F is designed for use in power-train and chassis control, factory automation and similar industrial equipment control

Sample shipments will begin in December 2002.

The new device is based on the high-performance SH-2 CPU core, providing 104MIPS and manufactured using a 0.18um process.

It offers twice the operating speed and twice the on-chip Flash memory capacity than the current SH7055F device and is upward compatible with software programs written for that device.

Its resulting 104MIPS high-speed operation capability and ability to store large programs for complex control makes it possible to implement sophisticated high-performance systems that require accurate and finely tuned control.

The 1Mbyte on-chip Flash memory is capable of one-cycle random access operation at 80MHz and incorporates an on-chip write/erase program.

The Flash memory has two boot modes, the conventional boot mode and a new user boot mode.

The user boot mode allows users to write their own boot operation programs (for example CANbus for data transfer) and implement original writing/erasing following powering-on of the system.

The SH7058F features a new oscillation halt detection function.

When enabled by software, this detects a stop or abnormality in the chip's oscillation, and can then initiate self-oscillation.

So, if oscillation stops or becomes abnormal, for example due to the detachment of a crystal oscillator, the abnormality is detected and processing can be continued at lower performance to bring the system to a halt in an orderly fashion, thereby improving system reliability.

The new device offers a comprehensive set of on-chip peripheral functions, including an ATU-II advanced timer unit comprising 10 free-running counters, 16 down-counters and eight PWM counters; a watchdog timer channel that can be used as an interval timer; and two compare match timer channels.

A 10bit resolution, multitrigger analogue/digital convertor can achieve a conversion precision of +/-2LSB and is provided with 32 input channels, enabling processing of a large number of analogue signals carrying sensor information.

The SH7058F features an on-chip interrupt controller with 124 interrupt sources hat speeds up interrupt response time and task switching.

It also offers a new boundary scan feature that enables a board test to be carried out via a JTAG-Interface.

The on-chip single-precision FPU (floating-point unit) is fundamental for today's automotive applications described by model based algorithms and using automatic code generation; the advanced user debugger (AUD) interface and SH7058FCC (Flash-on-chip calibration) device supports nonintrusive and real-time calibration.

Controller Area Network (CAN) support for fast and reliable data communication is provided on the device by two Hitachi Controller Area Network (HCAN-II) channels.

Each channel can use 32 message buffers (one for reception only, and 31 settable for transmission or reception) and employs an independent 16bit timer, enabling the use of a time trigger transmission function that allows communication to be carried out at high speed and with high reliability.

The SH7058F is available in a 256-pin quad flatpack (QFP), offers a wide temperature range of -40 to +125C and includes an on-chip debugging function.

Development environments available for the device include Hitachi's E10A compact emulator and the JTAG-debugging solution from Lauterbach.

The SH7058FCC EDK (evaluation development kit) will be available from October 2002.

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