Digi BL1800 user manual Table A-3. Jackrabbit Pinout Configurations

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The ports on the Rabbit 2000 microprocessor used in the Jackrabbit are configurable, and so the factory defaults can be reconfigured. Table A-3lists the Rabbit 2000 factory defaults and the alternate configurations.

Table A-3. Jackrabbit Pinout Configurations

	Pin	Rabbit 2000	Alternate Use	Jackrabbit Use
	Pin	Factory Default	Alternate Use	Jackrabbit Use
		Factory Default
	PA0–PA7	Parallel I/O	Slave port data bus SD0–
	PA0–PA7	Parallel I/O	SD7
			SD7

	PB0	Input	Serial port clock CLKB	PB1 (CLKA) is
	PB0	Input	Serial port clock CLKB	connected to J3
				connected to J3
				(programming port)
	PB1	Input	Serial port clock CLKA	(programming port)
	PB1	Input	Serial port clock CLKA

	PB2	Input	Slave port write /SWR

	PB3	Input	Slave port read /SRD

	PB4	Input	Slave port address lines
	PB5	Input	SA1–SA0

	PB6	Output

	PB7	Output	Slave port attention line
	PB7	Output	/SLAVEATTN
			/SLAVEATTN

	PC0	Output	TXD	Connected to RS-485 IC
	PC0	Output	TXD	Tx input
				Tx input

	PC1	Input	RXD	Connected to RS-485 IC
	PC1	Input	RXD	Rx output
				Rx output

	PC2	Output	TXC	Connected to RS-232 IC
	PC2	Output	TXC	Tx input
				Tx input

	PC3	Input	RXC	Connected to RS-232 IC
	PC3	Input	RXC	Rx output
				Rx output

	PC4	Output	TXB	Connected to RS-232 IC
	PC4	Output	TXB	Tx input
				Tx input

	PC5	Input	RXB	Connected to RS-232 IC
	PC5	Input	RXB	Rx output
				Rx output

	PC6	Output	TXA	Connected to
	PC7	Input	RXA	programming port

66	Jackrabbit (BL1800)

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Contents Jackrabbit BL1800 Programmable Single-Board ComputerTrademarks Digi International IncTable of Contents Index Schematics Features IntroductionJackrabbit Features Development and Evaluation ToolsAdditional Product Information How to Use This ManualOnline Documentation Immunity CE ComplianceEmissions Design Guidelines General SafetyInterfacing the Jackrabbit to Other Devices Jackrabbit BL1800 Development Kit Contents Getting StartedDevelopment Hardware Connections Board Attach Jackrabbit to Prototyping BoardConnect Programming Cable Assemble AC AdapterConnect Power Installing Dynamic C Troubleshooting Run a Sample ProgramReal-Time Clock Where Do I Go From Here?Technical Support Subsystems BL1800Jackrabbit Pinouts HeadersDigital Inputs/Outputs Digital InputsDigital Outputs HV3 Sourcing OutputConfigurable High-Current Output Bidirectional I/O Changing HV3 to a Sinking OutputSchematic Diagram of A/D Converter A/D ConverterJackrabbit BL1800 Schematic Diagram of D/A Converters D/A ConvertersV ⋅ 1 e RC 1 DA1Typical DA1 Voltages for Various Duty Cycles 2 DA0 Typical DA0 Voltages for Various Duty CyclesUser’s Manual 1 RS-232 Serial Communication2 RS-485 Ground recommended Programming Port 485 R16User’s Manual Changing Between Program Mode and Run Mode Programming CableSram MemoryFlash Eprom External Interrupts Other HardwareClock Doubler Spectrum Spreader Jackrabbit BL1800 Software Reference An Overview of Dynamic CJackrabbit BL1800 Sample Programs Jackrabbit Sample ProgramsDEMOJR1.C Sample Program DEMOJR1.CSingle-Stepping Watch Expression Break PointEditing the Program Summary of FeaturesWatching Variables Dynamically User’s Manual Other Sample Programs Illustrating Digital I/O R/W pin and DB0-DB3 on 3 RS-232 Serial Communication Sample Programs 4 RS-485 Serial Communication Sample Program Cooperative Multitasking Int vswitch Advantages of Cooperative Multitasking Jackrabbit Function Calls 1 I/O DriversVoid digOutint channel, int value Void anaOutint channel, int value Void anaInint channel, int *value Serial Communication Drivers Patches and Bug Fixes Upgrading Dynamic CAdd-On Modules Appendix A. Specifications Electrical and Mechanical Specifications Figure A-1shows the mechanical dimensions for the JackrabbitTable A-1. Jackrabbit Board Specifications Exclusion Zone Exclusion ZonesFigure A-3. User Board Footprint for Jackrabbit Jumper Configurations Figure A-4. Location of Jackrabbit Configurable Positions Table A-2. Jackrabbit Jumper Configurations Conformal Coating Conformally coated areaUse of Rabbit 2000 Parallel Ports JackrabbitTable A-3. Jackrabbit Pinout Configurations PD0 PD1 Jackrabbit BL1800 Appendix B. Prototyping Board Jackrabbit Connectors User LEDs Buzzer Prototyping Board OverviewPrototyping Board Features Mechanical Dimensions and Layout Top SideUsing the Prototyping Board Top SideDemonstration Board RelayExisting Prototyping Board Top SidePE0 VCC HV0 SM1 SM0 HV2 Stat Jackrabbit BL1800 Appendix C. Power Management Power SuppliesDcin Current mA Batteries and External Battery Connections 950 mA·h = 5.4 years 20 µABattery Backup Circuit Figure C-5shows the Jackrabbit battery backup circuitryPower to Vram Switch Reset GeneratorFigure C-7shows a schematic of the chip select circuit Chip Select CircuitJackrabbit BL1800 Index SMODE0 SMODE1RABDB01.C RABDB02.C Schematics