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Digi RCM4000 user manual 165 mA·h = 2.5 years, Reset Generator

Models: RCM4000

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The drain on the battery by the RCM4000 is typically 7.5 µA when no other power is sup- plied. If a 165 mA·h battery is used, the battery can last about 2.5 years:

165 mA·h

----------------------- = 2.5 years.

7.5 µA

The actual life in your application will depend on the current drawn by components not on the RCM4000 and on the storage capacity of the battery. The RCM4000 does not drain the battery while it is powered up normally.

C.1.2 Reset Generator

The RCM4000 uses a reset generator to reset the Rabbit 3000 microprocessor when the volt- age drops below the voltage necessary for reliable operation. The reset occurs between

2.85 V and 3.00 V, typically 2.93 V. The RCM4000 has a reset output, pin 3 on header J2.

110	RabbitCore RCM4000

Image 116

Digi RCM4000 user manual 165 mA·h = 2.5 years, Reset Generator

Contents

RabbitCore RCM4000 Trademarks Rabbit SemiconductorTable of Contents Software Reference Appendix C. Power Supply 109 RabbitCore RCM4100 Introduction Feature RCM4000 RCM4010 RCM4000 FeaturesRCM4000 Features Advantages of the RCM4000 Development and Evaluation Tools 1 RCM4000 Development KitSoftware Online DocumentationRabbitCore RCM4000 Install Dynamic C Getting StartedHardware Connections Prepare the Prototyping Board for DevelopmentAttach Module to Prototyping Board Prototyping BoardAC Adapter Connect Programming CableConnect Power Run a Sample Program TroubleshootingRun a Sample Program Where Do I Go From Here? Technical SupportRabbitCore RCM4000 Running Sample Programs IntroductionSample Programs User’s Manual Use of Nand Flash RCM4000 only Click OK or Close to exit the various dialog boxes Serial Communication User’s Manual 3 A/D Converter Inputs RCM4000 only Real-Time ClockHardware Reference RabbitCore ModuleRCM4000 Digital Inputs and Outputs Shows the RCM4000 pinouts for header J34000 RCM4000 Pinout Configurations Pin Pin Name Default Use Alternate UseTXD PC0 PE1 Memory I/O Interface Other Inputs and OutputsSerial Ports Rabbit 4000 Serial Port and Clock PinsSerial Communication Ethernet Port RJ-45 Ethernet Port PinoutProgramming Port Changing Between Program Mode and Run Mode Programming CableStandalone Operation of the RCM4000 A/D Converter RCM4000 only Resistor Divider Network for Analog InputsIt is not referenced to 1 A/D Converter Power Supply Analog Supply CircuitSpectrum Spreader Other HardwareClock Doubler Memory SramFlash Eprom Nand FlashRabbitCore RCM4000 Software Reference More About Dynamic CRabbitCore RCM4000 Dynamic C Function Calls Digital I/OSerial Communication Drivers Sram UseRabbitCore RCM4000 Prototyping Board Functions Board InitializationVoid timedAlertunsigned long timeout AlertsADS7870 Signal ADS7870 State RCM3400 Function/State Analog Inputs RCM4000 onlyOn write operations Data value on read operations Unsigned int anaInDriverunsigned int cmd, unsigned int len Gain Code MultiplierAnaInConfig, anaIn, brdInit Single Diff Gain Code Multiplier Voltage Range×10 ×16 ×20 126 Applies to Prototyping Board If successful If not able to make calibration constants Float anaInVoltsunsigned int channel, unsigned int gaincode Channel Code Single-Ended Voltage Range † Input LinesFloat anaInDiffunsigned int channel, unsigned int gaincode Float anaInmAmpsunsigned int channel Channel Code 20 mA Input LinesAllchan Gain Code Voltage Range +AIN7 AIN6 Gain Code Voltage Range Upgrading Dynamic C Add-On ModulesRabbitCore RCM4000 Using the TCP/IP Features TCP/IP ConnectionsRabbitCore RCM4000 TCP/IP Primer on IP Addresses Typical Corporate Network IP Addresses Explained How IP Addresses are Used Dynamically Assigned Internet Addresses Placing Your Device on the Network Direct Connection Direct Connection Using a HubRunning TCP/IP Sample Programs How to Set IP Addresses in the Sample Programs How to Set Up your Computer for Direct Connect Direct Connection PC to RCM4000 ModuleRun the PINGME.C Sample Program Running Additional Sample Programs With Direct ConnectWhere Do I Go From Here? RabbitCore RCM4000 Appendix A. RCM4000 Specifications Electrical and Mechanical Characteristics Dia ×Exclusion Zone Table A-1. RCM4000 Specifications Parameter RCM4000 RCM4010Ten 8-bit timers 6 cascadable from the first Parameter Test Conditions Table A-2 Converter Specifications1 A/D Converter Headers Figure A-3. User Board Footprint for RCM4000Rabbit 4000 DC Characteristics Table A-4 .3 Volt DC CharacteristicsSymbol Parameter Maximum Rating Symbol Parameter Min Typ MaxI/O Buffer Sourcing and Sinking Limit Bus LoadingTable A-5. Capacitance of Rabbit 4000 I/O Ports Table A-6. External Capacitive Bus Loading -40C to +85CIord Table A-8. Preliminary Data and Clock Delays Output Delay30 pF 60 pF 90 pF Ns setting No dbl / dbl Clock to Address Worst-CaseConformal Coating Conformally coated AreaHeader Description Pins Connected Factory Default Jumper ConfigurationsTable A-9. RCM4000 Jumper Configurations RabbitCore RCM4000 Appendix B. Prototyping Board Current Measurement Headers RCM4000 Prototyping Board Features RabbitCore RCM4000 Mechanical Dimensions and Layout 935Parameter Specification Power SupplyTable B-1. Prototyping Board Specifications Using the Prototyping Board SignalsPin Pin Name Prototyping Board Use Adding Other Components Measuring Current Draw3.1 A/D Converter Inputs Analog Features RCM4000 onlyTable B-3. Positive A/D Converter Input Voltage Ranges Table B-4. Differential Voltage Ranges 3.3 A/D Converter Calibration Mode Read CalibrateThermistor Input Table B-5. Prototyping Board Serial Port Configurations Serial Port Header Default Use Alternate Use4.1 RS-232 Prototyping Board Jumper Configurations Table B-6. RCM3400 Prototyping Board Jumper ConfigurationsJP5 LN4IN-LN6IN 108 Battery-Backup Circuits Appendix C. Power SupplyPower Supplies Reset Generator 165 mA·h = 2.5 yearsUser’s Manual 111 112 Index SMODE0 SMODE1ADCALALL.C User’s Manual 115 116 Schematics