ZEPIR000103ZRDG

Reference Design ZMOTION® Detection Module II ® RD002604-0814 Overview This reference design demonstrates how to use Zilog’s ZMOTION® Occupancy Detection solution in a PIR-based motion detector module. It also shows how to implement additional hardware and software functions such as a serial interface and configuring the detector using potentiometers. The ZMOTION Detection Module II (ZDM II) provides an integrated and flexible solution for Passive Infrared (PIR)-based motion detection applications. It includes the Z8FS040 MCU combined with a selection of lenses to fit a range of occupancy detection applications. The Z8FS040 MCU ships preprogrammed with motion detection software algorithms that comprise the ZMOTION Engine. These algorithms run in the background while control and status of the Engine is accessed through a software Application Programmer Interface (API). Optimized API settings are provided that match the Engine operation to each of the lens and pyroelectric sensor combinations provided. Note: The source code file associated with this application note, RD0026-SC01.zip, is available free for download from the Zilog website. This source code has been tested with version 5.0.0 of ZDS II for Z8 Encore! XP MCUs. Subsequent releases of ZDS II may require you to modify the code supplied with this reference design. Features The key features of this reference design are: • Complete board-level motion detection design supporting the following five lens types: – NCL-10IL (7 meter wall mount, wide angle) installed – NCL-10S (12 meter wall mount, corridor, directional) – NCL-9(26) (5 meter wall/ceiling mount, 2:1 diameter-to-height coverage ratio) – NCL-3R (ceiling mount, 1.8:1 diameter-to-height coverage ratio) – NCL-3B (3 meter wall mount, wide angle) • Employs a low-cost RE200B dual-element pyroelectric sensor • Low-cost modular design • Serial and hardware configuration modes RD002604-0814 Page 1 of 27 ZMOTION® Detection Module II Reference Design • Automatic temperature compensation • Standard 8-pin 0.100" header interface Front and back views of the ZMOTION Detection Module II are shown in Figures 1 and 2, respectively. Figure 1. ZMOTION Detection Module II: Front Figure 2. ZMOTION Detection Module II: Back RD002604-0814 Page 2 of 27 ZMOTION® Detection Module II Reference Design Discussion The use of Passive Infrared (PIR)-based motion detectors has been prevalent in lighting control, energy management, and general occupancy detection applications for a number of years. Despite this popularity, the traditional design architectures of motion detection devices, and their inherent limitations, have not significantly changed since their inception. Zilog’s ZMOTION Occupancy Detection Solution employs an architecture that provides a significant advantage over previous approaches, delivering a dramatic improvement in both sensitivity and stability over traditional motion detection designs. Traditional Design Architecture The traditional motion detector design uses a pyroelectric sensing element combined with a Fresnel or similar-type lens to direct the infrared energy emitted from a target as it moves across the sensor’s detection area. As this focused energy moves across the sensing elements of the pyroelectric sensor, it generates a voltage with a frequency component ranging from 0.1 Hz to 10 Hz. The amplitude of this signal is relative to the difference in temperature between the target and its surrounding environment (ambient temperature) and is typically in the range of 1 m VP-P to 2 m VP-P. It also contains a large high-frequency noise component and a DC offset of 400 mV to 1,800 mV that will change with temperature and aging; this offset can even vary between devices. Figure 3. Traditional Design Architecture To create a signal that is usable by either discrete components or a microcontroller, the output signal from the sensor is typically followed by an AC-coupled gain stage (~72 db), combined with a bandpass filter, which reduces the high-frequency noise content and strips the DC offset. This decision stage is responsible for extracting the signature of human motion from the resulting signal. The most common approaches to type of signal RD002604-0814 Page 3 of 27 ZMOTION® Detection Module II Reference Design filtering are the rate of rise and time above amplitude methodologies. The time above amplitude method can be implemented with a simple window comparator, in which the two signal inputs are phase-delayed from each other. Although there are several drawbacks to either of these methods – the most significantly drawback being its susceptibility to false detections – it is commonly used in low-cost motion detectors. More commonly, however, motion detectors intended for occupancy applications use a microcontroller to perform decision analysis. A microcontroller can combine multiple detection methods to produce a more stable motion detector. However, this combination approach still does not address the root issues causing false detections: high-gain circuit elements and an extremely modified sensor signal. By filtering the signal, useful information that is sometimes critical to making a reliable decision is removed. Because of the low-frequency filtering required by traditional architectures, signal discontinuities caused by external electrical factors (mainly EMI and ESD) can create a signature that is indiscernible from valid motion-creating false events. The high-gain stage simply compounds the problem and increases a traditional design’s susceptibility. ZMOTION Design Architecture In the ZMOTION Occupancy and Motion Detection Architecture shown in Figure 4, the pyroelectric sensor is interfaced directly to the Z8FS040 MCU without any AC coupling, gain, or filtering. As a result, the MCU is allowed to work with a true, unmodified signal to gauge the realtime effects caused by shifts in DC offset, transience, and other nonmotion-based signal changes. No temperature compensation is required, thereby resulting in a lower-component-count design. The ZMOTION Detection Module II Reference Design is based on this architecture, and is described in more detail throughout the remainder of this document. Figure 4. ZMOTION Design Architecture RD002604-0814 Page 4 of 27 ZMOTION® Detection Module II Reference Design Theory of Operation The ZMOTION Detection Module II Reference Design is based on the Z8FS040 MCU, which includes the ZMOTION motion-detection algorithms preprogrammed in Flash memory; 4 KB of memory is available for application code. This ZMOTION software runs from the ADC end of the conversion interrupt, and provides status updates to the application through the API registers. To learn more about the Z8FS040 MCU’s API registers, refer to the ZMOTION Detection and Control Product Specification (PS0285). The block diagram in Figure 5 shows all peripherals included with the Z8FS040 MCU that are available to the application. Figure 5. Z8FS040 MCU Block Diagram The motion detection algorithms take advantage of the Z8FS040 MCU’s on-chip Sigma/ Delta ADC when operated in Differential Mode. The pyroelectric sensor is connected directly to the positive ADC input, with the 1 V ADC VREF connected to the negative RD002604-0814 Page 5 of 27 ZMOTION® Detection Module II Reference Design input of the ADC. This connection creates a ± 1 V range for the pyroelectric sensor input. Although specified for 10-bit accuracy, the Sigma/Delta ADC features a 16-bit result register, in which one bit is used for overflow indication and another bit is used for sign. The ZMOTION Engine oversamples and averages the pyroelectric sensor’s signal input and provides 15 bits of resolution. Because the software algorithms of the ZMOTION Engine are tuned to detect changes and rates of changes in the pyroelectric sensor signal, absolute accuracy is not necessary. By oversampling and averaging the signal input, constructed sample values have a ± 16,384-count range, which provides a usable resolution of 61 µV per count. Hardware Architecture The ZMOTION Detection Module II (ZDM II) Reference Design is based on the 8-pin Z8FS040 MCU. All functions related to the operation of the detector are handled by the MCU. The reference design is supported by the ZDM II Development Board, which includes additional hardware to demonstrate the advanced features of the Module. In Figure 6, all external connections to the Module are made through the 8-pin row header. Figure 6. ZDM II Block Diagram RD002604-0814 Page 6 of 27 ZMOTION® Detection Module II Reference Design The Module is designed to support standard clip-on lenses, which available from Zilog and other suppliers. The reference design ships with the NCL-10IL lens installed; a 7meter, 90° wide-angle lens. The Module’s printed circuit board is composed of a two-layer FR4 material using 1 oz. copper with gold plating. I/O Map An I/O map of the Z8FS040 MCU is shown in Table 1. Table 1. ZDM II Z8FS040 MCU I/O Map Pin # Pin Name Type Function Comments 1 VDD VDD Power 2.8 V to 3.6 V. 8 VSS VSS Ground 2 DBG (PA0) Digital I/O Sleep/Debug Needs 10K PU for Debug. 4 Reset (PA2) Digital I/O MD/Reset 10K PU for Reset. 5 ANA2 (PA3) Analog I/P Pyro Signal (ANA2) – 3 ANA3 (PA1) Analog I/P Light Gate (ANA3) – 7 TXD0/ANA0 (PA5) Digital O/P UART Tx/Sensitivity Potentiometer – 6 RXD0/ANA1 (PA4) Digital I/P UART Rx/Delay Potentiometer – Software Architecture The RD0026-SC01.zip source code file included with this reference design includes a project file named ZMotion_App.zdsproj which is built using Zilog Developer Studio II (ZDS II) for Z8 Encore! XP version 5.0.0. The RD0026-SC01.zip source code file contains standard ZDS II support files, standard ZMOTION support files, and custom application files; these files are briefly described in this section. Source Files main.c. A custom application source code file that implements the major functions of the software. ePIR_API.c. A standard ZMOTION support file required for all ZMOTION projects. This file reserves space in RAM for the ZMOTION API registers, and defines the API register names. startupePIR.asm. A standard ZMOTION support file required for all ZMOTION proj- ects. This file provides all necessary environment initializations after reset, and replaces the standard startups.asm or startupl.asm file. Header Files ePIR_API.h. A standard ZMOTION support file required for all ZMOTION projects. This file provides bit definitions for all API registers. RD002604-0814 Page 7 of 27 ZMOTION® Detection Module II Reference Design Main.h. A custom application file that includes project definitions and defaults for the main.c file. eZ8.h. A standard ZDS II support file that brings in all other MCU-specific support files. API_INIT_ZDM2.h. A standard ZMOTION API configuration file for ZDM II with an RE200B pyroelectric sensor. This file is compatible with several lenses without requiring additional modification. Project Configurations The following two ZDS II project configurations are defined for ZDM II: ZDM_Release. This configuration is used to produce a final build for production. ZDM_Debug. This configuration used to produce a copy that can be used for in-circuit debugging. The application consists of a main loop and two interrupt sources: ADC and Timer 0. Halt Mode is used in the main loop, causing it to be executed once after either interrupt. The ADC interrupt passes control to the ZMOTION Engine, which performs all motion detection processing, updates the API, and then returns to the calling function. The ADC is run in Continuous Mode, so this interrupt occurs once every 256 system clocks (about once every 46.2 µs). The Timer 0 interrupt runs once every 100 ms and controls all software timers used in the main loop. It also sets the required one-second time base bit in the API and updates the status of the MD output. See Appendix B. Flow Charts on page 18 to review a top-level code flow for this reference design. Equipment Used Each of the following items is included with the ZMOTION Detection Module II Reference Design. • ZMOTION Detection Module II • ZMOTION Development Board • ZDS II – Z8 Encore! v5.0.0 • Selection of lenses • 5 V DC power supply • USB SmartCable • Serial cable Installation and Operation This section describes how to connect and operate the ZDM II Module with the ZDM II Development Board. RD002604-0814 Page 8 of 27 ZMOTION® Detection Module II Reference Design Establishing Connections All connections to the ZDM II Module are made through the P1 interface header, which inserts into J4 on the ZDM II Development Board, as indicated in Figure 7. Figure 7. The Location of J4 on the ZDM II Development Board The ZDM II Development Board provides additional hardware to support the two operating modes of the Module, Serial Mode and Hardware Mode; these modes are selectable with SW1. Details about the connections for each mode are shown in Table 2. RD002604-0814 Page 9 of 27 ZMOTION® Detection Module II Reference Design Table 2. ZDM II Development Board Signal Connections Pin Name Connection on the ZDM II Development Board Comments 1 VSS GND 2 VDD +3.3V 3 RXD/DLY Serial: Receive Data out from RS-232 chip U1 Selected by SW1. Hardware: Delay Potentiometer R4 4 TXD/SNS Serial: Transmit Data to RS-232 chip U1 Selected by SW1. Hardware: Sensitivity Potentiometer R3 5 MD/RST Motion Detected LED D1 Configurable as MD or Reset in Serial Mode. 6 LG Ambient Light Sensor CDS1 Connected via J7. 7 SLP/DBG State jumper J11 Debug interface pin. 8 VSS GND Setting the Jumpers Four jumpers are provided on the ZDM II Development Board to allow control and evaluation of certain features of the ZDM II; Table 3 lists the settings for these jumpers. Table 3. Jumper Settings Jumper Function Installed Removed J7 CDS Ambient, PA1 connected to CDS1 User, PA1 not connected to CDS1. J11 State Sleep, MCU in Stop Mode Run, MCU active. Selecting an Interface Mode The ZDM II Module determines the interface mode by sampling the voltage level on PA5 during the power up sequence. If the voltage on the pin is below 2.0V, the Module will select hardware interface mode. If the voltage is above 2.0V the Module will select Serial Interface Mode. Operating In Hardware Mode To select Hardware Mode, place SW1 in the Hardware position and apply power to the ZDM II Development Board. The Module can be configured through the trim pots, which are labeled Sens, Delay, and Ambient. The Sensitivity trim potentiometer, Sens, adjusts the motion sensitivity of the Module. Turning this pot in the + direction increases the Module’s sensitivity; turning this pot in the – direction makes it less sensitive. RD002604-0814 Page 10 of 27 ZMOTION® Detection Module II Reference Design The Delay trim potentiometer, Delay, adjusts how long the MD output will remain active after a motion event. Turning this pot in the + direction increases this delay; turning the pot in the – direction makes the delay shorter. The Ambient trim potentiometer, Ambient, adjusts the threshold for ambient light sensing. Turning this pot towards Light increases the threshold (e.g., it activates the MD output even when a room is already brightly illuminated); turning the pot towards Dark lowers the threshold (e.g., it activates MD only when a room is dark). Operating In Serial Mode To select Serial Mode, place SW1 in the Serial position and apply power to the ZDM II Development Board. The Module can be configured through the serial interface. This serial interface is asynchronous, and is configured to the following settings: • 9600 bps • No parity • 8 data bits • 1 stop bit • No flow control The serial interface operates via a host/client relationship in which the Module is the client. Commands are sent from the host, and the Module responds with the requested information or a confirmation. All commands sent to ZDM II are in ASCII character format; however, the data sent to and from the Module may be in ASCII or decimal formats; these formats are selectable by the host. The ASCII character format allows for easier reading when using a terminal emulation program (e.g., HyperTerminal) to interface with the Module. Three types of command structures are accepted by ZDM II; each is described in this section: • Read commands • Write commands • Confirmation commands Read commands are used to request information from the ZDM II, and are sent from the host. The Module responds with the requested data. The command structure of these read commands is shown in Figure 4. RD002604-0814 Page 11 of 27 ZMOTION® Detection Module II Reference Design Command Host Response ZDM II Module Table 4. Read Command Structure Write commands are used to update the configuration of ZDM II, and are sent from the host. The Module responds with the current value as an acknowledgment. The host then sends the new data, and the Module responds with an ACK. The command structure of these write commands is shown in Figure 5. Command Current Value Host New Value ZDM II Module ACK Table 5. Write Command Structure Certain commands require a specific sequence of characters to be sent to prevent accidental initiation. These commands require a 4-character confirmation sequence. After a command requiring confirmation is received, the device returns an ACK. The command structure of these confirmation commands is shown in Figure 6. Command ACK Host Sequence (4) ZDM II Module ACK Table 6. Confirmation Command Structure Details about these and other commands can be found in the ZMOTION Detection Module II Product Specification (PS0305). RD002604-0814 Page 12 of 27 ZMOTION® Detection Module II Reference Design Changing Lenses This reference design is preprogrammed to support all of the lenses included in the ZMOTION Detection Module II Evaluation Kit. To change lenses on the ZDM II Module, gently pull the installed lens to remove it from the pyroelectric sensor. Install the new lens so that the tab on the sensor lines up with the correct slot on the lens. Table 7 indicates the location of the tab for each lens in the Kit. Table 7. Tab Location For Each Lens Lens Image with Position Indicator Lens NCL-10IL NCL-3R NCL-10S NCL-3B Image with Position Indicator NCL-9(26) Walk Test To perform a basic walk test using the ZDM II Module installed on the ZDM II Development Board, place SW1 in Hardware Mode, and supply power to the ZDM II Development Board. When using the NCL-10IL lens, place the Board on a horizontal surface at a height of 1.2 m (4'). Set the Sens potentiometer to the desired sensitivity, and set the Delay potentiometer to Minimum (–). RD002604-0814 Page 13 of 27 ZMOTION® Detection Module II Reference Design When power is applied, the detector will undergo a warm-up period to allow the pyroelectric sensor to stabilize. This period will take approximately 30 seconds. During this time, the status LED will remain off. After this warm-up period is complete, the status LED will turn on when motion is detected. Visual diagrams showing the results of walk tests for each lens are presented in Appendix C. Walk Test Results on page 21. Stability Test Results Stability tests were performed in a small indoor room for a period of five days. Five ZDM II detectors were mounted at a height of four feet using each of the provided lenses. The room temperature varied from 18°C to 22°C. Table 8 lists the test conditions. As a result of these tests, no false detections were recorded. Table 8. Stability Test Conditions Test Condition Room Dimensions 5' x 4' Temperature variation 18°C to 22°C Mounting Vertical at 4' Time period 5 days Number of units 6 Summary The ZMOTION Detection Module II Reference Design demonstrates how to use Zilog's ZMOTION Occupancy Detection solution in a PIR-based motion detector module design that meets and exceeds industry expectations. The stability and walk tests show that how even a non-optimized setup (open-air PCB) is capable of providing reliable consistent performance. The flexibility of the Z8FS040 MCU allows additional features such as Serial interface and configurability features to be added with minimal additional components. The five lenses included with the reference design demonstrate the ease with which a full product family can be created based off the initial design - without changes to hardware or software. Specifications Table 9 lists the electrical and detection characteristics of the ZDM II Module hardware and reflects all available data as a result of testing prior to qualification and characterization. As such, the data presented in Table 9 are subject to change. RD002604-0814 Page 14 of 27 ZMOTION® Detection Module II Reference Design Table 9. ZMOTION Detection Module II Reference Design Specifications Item Specification Detection Method Dual-Element PIR Power Input 2.8 V to 3.3 V Current Consumption: Run Mode ~8 mA Sleep Mode ~350 µA Detection Range: NCL-10IL 7 meters (wall mount) NCL-10S 12 meters (wall mount) NCL-9(26) 5 meters (wall), 2:1 ratio (ceiling) NCL-3R 2:1 ratio (ceiling mount) NCL-3B 3 meters (wall mount) Motion Detected Output Active Time Configurable MD Output Type TTL active low signal Power on Warm up Time Approximately 30 seconds Dimensions (W x H x D; with NCL-10IL) 25.5 mm x 16.7 mm x 17.6 mm Ordering Information The ZMOTION Detection Module II Reference Design can be purchased from the Zilog Store – simply click the Store Product ID listed in Table 10. As with all Zilog development kits, the ZMOTION Detection Module II Evaluation Kit is available through Zilog’s distributors. To order the ZMOTION Detection Module II Evaluation Kit, please contact your nearest Zilog sales representative. Table 10. ZMOTION Detection Module II Ordering Information Part Number Description Store Product ID ZEPIR000103ZRDG ZMOTION Detection Module II Reference Design RD10021 RD002604-0814 Page 15 of 27 ZMOTION® Detection Module II Reference Design Related Documentation The documents associated with the ZMOTION Detection Module II Reference Design are listed in Table 11. Each of these documents can be obtained from the Zilog website by clicking the link associated with its Document Number. Table 11. ZMOTION Detection Module II Reference Design Documentation Document ID Document Title RD0026 This ZMOTION Detection Module II Reference Design document RD0026-SC01 Source code for the ZMOTION Detection Module II Reference Design PS0305 ZMOTION Detection Module II Product Specification UM0260 ZMOTION Detection Module II Evaluation Kit User Manual PS0285 ZMOTION Detection and Control Product Specification PS0228 F082A Series Product Specification PS0286 ZMOTION Lens and Pyroelectric Sensor Product Guide WP0017 ZMOTION - A New PIR Motion Detection Architecture White Paper WP0018 ZMOTION Detection Lens and Pyro Sensor Configuration Guide WP0018-SC01 Application Library for the ZMOTION Detection Lens and Pyro Sensor Configuration Guide RD002604-0814 Page 16 of 27 ZMOTION® Detection Module II Reference Design Appendix A. Schematic Diagrams Figure 8 displays a schematic diagram of the ZMOTION Detection Module II Reference Design. Figure 8. Walk Test Results for NCL-10IL Lens RD002604-0814 Page 17 of 27 ZMOTION® Detection Module II Reference Design Appendix B. Flow Charts Figure 9 presents a top-level code flow for the ZMOTION Detection Module II Reference Design. Figure 9. ZDM II Software Flow: Top Level RD002604-0814 Page 18 of 27 ZMOTION® Detection Module II Reference Design Figure 10 shows the flow of the main application loop. Figure 10. Software Flow: Main Application RD002604-0814 Page 19 of 27 ZMOTION® Detection Module II Reference Design The Serial Interface is handled as a command-based state machine, with two levels of processing. If a command requires additional received data, it is transferred into the second level to complete the task. Figure 11 shows the flow of the Serial Interface state machine. Figure 11. Software Flow: Serial Interface State Machine RD002604-0814 Page 20 of 27 ZMOTION® Detection Module II Reference Design Appendix C. Walk Test Results Figures 12 through 16 present the results of walk tests for each of the five lenses used in this reference design. For the sake of simplicity, the walk test plots for wall-mount lenses show half of the total pattern. Figure 12. Walk Test Results for NCL-10IL Lens RD002604-0814 Page 21 of 27 ZMOTION® Detection Module II Reference Design Figure 13. Walk Test Results for NCL-10S Lens RD002604-0814 Page 22 of 27 ZMOTION® Detection Module II Reference Design Figure 14. Walk Test Results for NCL-9(26) Lens RD002604-0814 Page 23 of 27 ZMOTION® Detection Module II Reference Design Figure 15. Walk Test Results for NCL-3R Lens RD002604-0814 Page 24 of 27 ZMOTION® Detection Module II Reference Design Figure 16. Walk Test Results for NCL-3B Lens RD002604-0814 Page 25 of 27 ZMOTION® Detection Module II Reference Design Appendix D. Parts List The parts required for building this ZMOTION Detection Module II reference design are listed in Table 12. The components shown in red are available from Zilog. Table 12. ZMOTION Detection Module II Reference Design PCB Parts List # Qty Description Designator Manufacturer Mfg. Part Number Footprint 1 2 CAP 1 µF 16 V 0603 C1, C2 Murata GRM188F51C105ZA01D 0603 2 1 Header, 8-Pin, Right Angle P1 3M 929550-01-08-EU HDR1X8H 3 1 Pyro Dual Gen Purpose Q1 Zilog/Nicera ZRE200BP/RE200B-P TO-5 (3 PIN) 4 1 RES 47K 1% 0603 R1 Panasonic ERJ-3GEYJ473V 0603 5 1 ZMOTION MCU 4K Flash S08N U1 Zilog Z8FS040BSB20EG S08N 6 1 Lens, Clip-On 90° Wide Angle Lens Zilog/Nicera ZNCL10IL/NCL-10IL RD002604-0814 Page 26 of 27 ZMOTION® Detection Module II Reference Design Customer Support To share comments, get your technical questions answered, or report issues you may be experiencing with our products, please visit Zilog’s Technical Support page at  http://support.zilog.com. To learn more about this product, find additional documentation, or to discover other facets about Zilog product offerings, please visit the Zilog Knowledge Base at http:// zilog.com/kb or consider participating in the Zilog Forum at http://zilog.com/forum. This publication is subject to replacement by a later edition. To determine whether a later edition exists, please visit the Zilog website at http://www.zilog.com. Warning: DO NOT USE THIS PRODUCT IN LIFE SUPPORT SYSTEMS. LIFE SUPPORT POLICY ZILOG’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION. As used herein Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Document Disclaimer ©2014 Zilog, Inc. All rights reserved. Information in this publication concerning the devices, applications, or technology described is intended to suggest possible uses and may be superseded. ZILOG, INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZILOG ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this document has been verified according to the general principles of electrical and mechanical engineering. Z8 Encore!, Z8 Encore! XP and ZMOTION are trademarks or registered trademarks of Zilog, Inc. All other product or service names are the property of their respective owners. RD002604-0814 Page 27 of 27