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Digi RCM4000 user manual Conformal Coating, Conformally coated Area

Models: RCM4000

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A.5 Conformal Coating

The areas around the 32 kHz real-time clock crystal oscillator have had the Dow Corning silicone-based 1-2620 conformal coating applied. The conformally coated area is shown in Figure A-5.The conformal coating protects these high-impedance circuits from the effects of moisture and contaminants over time.

Conformally coated

area

C12

R34

J1

L5

C11

C14

C8

R20

L6

R1

L7

C9

C7

L4

C15

L3

R7

R6

R2

L2

R4

C16

C13

R5

R3

C10

R51

R8

L8

L9

J2

C18T1

U1

ACT

DS1

C41 R35

Y1

C20

JP1

R9

R36

JP2

R10

R37

U6C34

C33

JP3

LINK

DS2

C47

U7

C42

R25

U5

R24

Q1

C43

C35

C24

C49C48

C72

C25

C26 C27

U3

C50

Y3

C51

C28

C66

R47

C52

C29

C54

C32C31C30

R46

C53

U17

R48

C46 C45C44 R29

C36

C55C56

U9

U8

RP2

C71

Y2

R30

R26

R31

C38

D1 R27

C22

R33 R32

R43

C23

JP4

R28

Figure A-5. RCM4000 Areas Receiving Conformal Coating

Any components in the conformally coated area may be replaced using standard soldering procedures for surface-mounted components. A new conformal coating should then be applied to offer continuing protection against the effects of moisture and contaminants.

NOTE: For more information on conformal coatings, refer to Technical Note 303, Con- formal Coatings.

88	RabbitCore RCM4000

Image 94

Digi RCM4000 user manual Conformal Coating, Conformally coated Area

Contents

RabbitCore RCM4000 Trademarks Rabbit SemiconductorTable of Contents Software Reference Appendix C. Power Supply 109 RabbitCore RCM4100 Introduction RCM4000 Features RCM4000 FeaturesFeature RCM4000 RCM4010 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 Communication Rabbit 4000 Serial Port and Clock PinsSerial Ports 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 CircuitClock Doubler Other HardwareSpectrum Spreader Flash Eprom MemorySram Nand FlashRabbitCore RCM4000 Software Reference More About Dynamic CRabbitCore RCM4000 Serial Communication Drivers Dynamic C Function CallsDigital I/O 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 Running TCP/IP Sample Programs Direct Connection Using a HubDirect Connection 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 1 A/D Converter Table A-2 Converter SpecificationsParameter Test Conditions Headers Figure A-3. User Board Footprint for RCM4000Symbol Parameter Maximum Rating Rabbit 4000 DC CharacteristicsTable A-4 .3 Volt DC Characteristics Symbol Parameter Min Typ MaxTable A-5. Capacitance of Rabbit 4000 I/O Ports I/O Buffer Sourcing and Sinking LimitBus Loading Table A-6. External Capacitive Bus Loading -40C to +85CIord 30 pF 60 pF 90 pF Ns setting No dbl / dbl Table A-8. Preliminary Data and Clock DelaysOutput Delay Clock to Address Worst-CaseConformal Coating Conformally coated AreaTable A-9. RCM4000 Jumper Configurations Jumper ConfigurationsHeader Description Pins Connected Factory Default RabbitCore RCM4000 Appendix B. Prototyping Board Current Measurement Headers RCM4000 Prototyping Board Features RabbitCore RCM4000 Mechanical Dimensions and Layout 935Table B-1. Prototyping Board Specifications Power SupplyParameter Specification Using the Prototyping Board SignalsPin Pin Name Prototyping Board Use Adding Other Components Measuring Current DrawTable B-3. Positive A/D Converter Input Voltage Ranges Analog Features RCM4000 only3.1 A/D Converter Inputs Table B-4. Differential Voltage Ranges Thermistor Input Mode Read Calibrate3.3 A/D Converter Calibration 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 Power Supplies Appendix C. Power SupplyBattery-Backup Circuits Reset Generator 165 mA·h = 2.5 yearsUser’s Manual 111 112 Index SMODE0 SMODE1ADCALALL.C User’s Manual 115 116 Schematics