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Freescale MCU boosts performance for interrupt-intensive apps

Posted: 08 Jul 2005 ?? ?Print Version ?Bookmark and Share

Keywords:freescale semiconductor? hcs12x? microcontroller? mcu? hcs12?

Freescale Semiconductor's HCS12X family of 16bit microcontrollers (MCUs) is now available to the general market. The units offer an easy performance upgrade (up to 40MHz) for current HCS12 MCU customers.

The HCS12X family features the XGATE module. This co-processor is designed specifically to handle interrupt events without intervention by the CPU. Running from random access memory at twice the clock speed of the CPU (80MHz), the XGATE relieves the CPU from executing time-consuming interrupt handlers, allowing it to concentrate on application-related tasks. This combination results in optimal real-time event processing and streamlined system performance.

Applications that can benefit from the HCS12X include high-performance printers, instrumentation control, intelligent sensor filtering in industrial and automotive applications, medical networking, radio communications and heating, ventilation and air conditioning (HVAC).

The performance and efficiency of the HCS12X family is greatly increased by an enhanced CPU with 172 additional instructions for improved memory mapping, code efficiency and 32bit calculations. The family also maintains a high degree of pin and code compatibility with the HCS12 family.

Freescale offers two development platforms for product designers. The DEMO9S12XDT512 is said to be a simple, yet highly functional, demonstration board for quick and easy application development using the MC9S12XDT512 MCU. The EVB9S12XDP512 is a more powerful evaluation board that includes the needed tools to fully utilize the main peripherals of the MC9S12XDP512 MCU.

Freescale offers comprehensive software and tools solutions through partnerships with world-class suppliers, including Cosmic Software and SofTec Microsystems, as well as many other independent suppliers. Freescale also offers the CodeWarrior Development Studio for HCS12X with XGATE, featuring support for development in C, C++ and assembly languages, and offering full visibility of all cores and processes.

The HCS12XD MCU (with CAN) is available now in a 112-pin LQFP at a manufacturer's suggested resale price (MSRP) starting at $10.58 each in 10,000-unit quantities. The HCS12XA (without CAN) available now in a 112-pin LQFP starting at an MSRP of $9.34 each, also in 10,000-unit quantities. The DEMO9S12XDT512 demonstration board is priced at $75, while the EVB9S12XDP512 evaluation board costs $395.

- Marty Gold


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