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Microcontrollers suit motion detection applications.

Press Release Summary:

Designed for development of products requiring control based on Passive Infrared motion detection, Zilog® ZMOTION(TM) Detection and Control Solutions combine programmability and peripheral set of Flash Z8 Encore XP(TM) F082A microcontrollers with software algorithms. Pyro-electric sensor is interfaced directly to Sigma/Delta ADC input on microcontroller without AC coupling, gain, filtering, or temperature compensation, allowing microcontrollers to work with true, unmodified signal.

Original Press Release:

Zilog Develops New ZMOTION(TM) Sensing and Control Solutions Featuring Advanced Sensing Technology

Latest Series of High-Performance Microcontrollers Offer Advanced Motion Detection Capabilities for Faster Product Development Cycles

SAN JOSE, Calif. and BIEL, Switzerland, -- IXYS Corporation (NASDAQ:IXYS) and Zilog Corporation, a wholly owned IXYS subsidiary and trusted supplier of application-specific, embedded system-on-chip (SoC) solutions for the industrial and consumer markets, today introduced its latest sensing and control technology ideal for motion detection applications, including intrusion, customer sensing and lighting control, and other energy management applications.

The Zilog® ZMOTION(TM) Detection and Control Family featuring advance sensing and control technology consists of a series of high-performance microcontrollers specifically designed for the rapid development and deployment of products requiring control based on Passive Infrared (PIR) motion detection.

The solutions combine the programmability and rich peripheral set of Zilog's Flash Z8 Encore XP(TM) F082A series of microcontrollers with a revolutionary new software design that has expanded motion detection capabilities with powerful built-in software algorithms. The combination is then tuned with quality lens and pyros combinations for a complete solution package that is optimized for multiple motion sensing and control applications. The customer benefits with the new solutions include unparalleled performance and flexibility when designing their devices, faster product development cycles, more flexible manufacturing and firmware changes in the field.

"Zilog's ZMOTION Detection and Control solutions build on the success of our Zdots® Single Board Computers with PIR Motion Detection Technology and offer our customers a dramatic improvement in both sensitivity and stability over traditional designs," said Steve Darrough, Zilog Director of Worldwide Marketing.

Enhanced Support for Lens and Pyro-Electric Sensor Capabilities

Today's traditional sensor designs have significant limitations originating from the filter and gain stage. By filtering the signal, information that is critical to making a reliable decision is removed. Any signal discontinuity between the pyro-electric sensor and the filter stage will look no different from a low-level infrared energy signature at the output of the gain stage. This impacts the maximum range, sensitivity and stability of the detector.

The architecture of Zilog's new ZMOTION(TM) Detection and Control solutions provides a greatly simplified design compared to the traditional approach. The pyro-electric sensor is interfaced directly to the high-resolution Sigma/Delta Analog to Digital Converter (ADC) input on the microcontroller without any AC coupling, gain, filtering or temperature compensation. This allows the microcontroller to work with the true, unmodified signal and see the real-time effects caused by shifts in DC offset, transients and other non-motion-based signal changes.

For example, a transient or white light event can generate a fast rise in output voltage from the pyro-electric sensor. The ZMOTION architecture can sense this event and respond to it accordingly, significantly reducing false detections.

Additionally, the new statistical processing algorithms provided by the ePIR motion detection engine eliminates the need for a discrete temperature compensation circuit. White light immunity is also supported by the status LED, eliminating the need for a special lens or a dedicated ambient light sensor. This leads to a simpler and smaller circuit design with reduced component count, providing better reliability, sensitivity and stability than traditional designs.

The ePIR engine in the ZMOTION solutions can be configured to support various pyro-electric sensors and lens types required by different motion detection applications. Recommended software application programmer interface (API) settings are available for a range of commercially available lens and pyro-electric sensor types. The motion detection algorithms in the new technology comprise the ePIR engine and run in the background of the microcontroller, while control and status of the engine is accessed through an API. This allows the designer to create their own application specific software using the available 4 kilobytes of on-chip flash memory while taking advantage of Zilog's ZMOTION technology.

The Zilog ZMOTION(TM) Detection and Control Silicon Family featuring ePIR Technology is in production and now available to ship to customers that place orders through distributors. For more information, visit

About Zilog, Inc.

Zilog is a trusted supplier of application specific, embedded system-on-chip (SoC) solutions for the industrial and consumer markets. From its roots as an award-winning architect in the microprocessor and microcontroller industry, Zilog has evolved its expertise beyond core silicon to include SoCs, single board computers, application-specific software stacks and development tools that allow embedded designers quick time to market in areas such as energy management, monitoring and metering, motor control and motion detection. Zilog is an IXYS company. For more information, visit, and

Zilog, Z8 Encore! and ZMOTION(TM) are trademarks or registered trademarks of Zilog, Inc. in the United States and in other countries. All other trademarks are the property of their respective owners in the United States and other countries.

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